WO2001046783A2 - System and method for accessing protected content in a rights-management architecture - Google Patents
System and method for accessing protected content in a rights-management architecture Download PDFInfo
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- WO2001046783A2 WO2001046783A2 PCT/US2000/042781 US0042781W WO0146783A2 WO 2001046783 A2 WO2001046783 A2 WO 2001046783A2 US 0042781 W US0042781 W US 0042781W WO 0146783 A2 WO0146783 A2 WO 0146783A2
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2137—Time limited access, e.g. to a computer or data
Definitions
- the present invention relates generally to distribution of electronic content, and, more particularly, to systems and methods for accessing protected content in a rights-management architecture.
- an electronic document Once an electronic document is transmitted to one party, it may be easily copied and distributed to others without authorization by the owner of rights in the electronic document or, often, without even the owner's knowledge. This type of illicit document distribution may deprive the author or content provider of royalties and/or income.
- a problem with many present delivery schemes is that they may make no provisions for protecting ownership rights.
- Other systems attempt to protect ownership rights, but however, are cumbersome and inflexible and make the viewing/reading of the authored works (or otherwise rendering the authored works, in the case of non-text content such as music, video, etc.) difficult for the purchaser.
- the digital rights management system of the present invention advantageously provides solutions to the above problems which protect the intellectual property rights of content owners and allow for authors or other content owners to be compensated for their creative efforts, while ensuring that purchasers are not over-burdened by the protection mechanism.
- the architecture includes a rendering application (e.g., a text-viewing application or "reader”) which renders content protected by the DRM system.
- the architecture also includes various security features that guard against unauthorized distribution or use of protected content, as well as software components that navigate the security features to allow content to be rendered in an appropriate client environment.
- content may be protected at a plurality of levels, including: no protection, source sealed, individually sealed (or “inscribed”), source signed, and fully individualized (or “owner exclusive”).
- no protection content is distributed in an unencrypted format.
- Source sealed and “individually sealed” content is encrypted and bundled with an cryptographic key (the “content key”) that is cryptographically sealed with certain rights-management data associated with the content, such that the key cannot be retrieved if the rights- management data has been altered.
- “individually sealed” content includes in the rights-management data information pertinent to the rightful owner (e.g., the owner's name, credit card number, receipt number or transaction ID for the purchase transaction, etc.), such that this information cannot be removed from a working copy of the content, thereby allowing for detection of unauthorized distributors.
- the particular type of information included is determined by the retailer of the copy.
- "Signed" content is cryptographically signed in such a way that the rendering application can verify its authenticity, or the authenticity of its distribution channel.
- “Fully individualized” content is encrypted content provided with a decryption key that has not merely been sealed with the rights-management information, but also encrypted in such a way that it cannot be accessed in the absence of a "secure repository” and “activation certificate,” which are issued only to a particular client or set of clients, thereby limiting the use of such content to a finite number of installations.
- "Fully individualized” content also includes a license, which specifies the rights that a user may exercise with respect to the content.
- the client is used for reading books or text, which are distributed to the client in a file having protection as described above.
- the client software and data relating to the protection and use of the content includes: the rendering application (called the "reader” in the case where the content is text); a "management" component that performs unsealing of protected content and certain other cryptographic functions; a software object that provides to content distributors information such as the installation and/or “activation” status of the reader application, as well as information about the "activation" certificate that is needed by the distributor in order to prepare "fully individualized” content whose decryptability is limited to a certain set of readers; and an "activation” software object that performs the function of obtaining a secure repository and activation certificate for installation on the client.
- the activation software object is embodied as an ACTIVEX control
- the object that provides information to content-distribution sites is embodied as an ACTIVEX and/or browser plug-in wrapped in one or more Java script functions.
- the management object be operable by the reader application through an API exposed to the reader application.
- the content key of fully individualized content is encrypted according to a public/private key pair associated with a particular activation certificate, and a copy of the activation certificate may be provided to various client devices owned or used by a particular person (or "persona"), such that one person can read the same "fully individualized” content on plural devices owned by that person, whereas other people who own similar devices cannot read that same "fully individualized” content because the necessary activation certificate will not be issued to those persons, thereby limiting the dissemination of fully individualized content.
- a particular person or "persona”
- FIG. 1 is a block diagram showing an exemplary computing environment in which aspects of the present invention may be implemented
- Fig. 2 is a block diagram of a first embodiment of a client architecture implementing aspects of a digital rights management system in accordance with the invention
- Fig. 3 is a block diagram of a second embodiment of a client architecture implementing aspects of a digital rights management system in accordance with the invention
- Fig. 4 is an exemplary electronic book (eBook) title file format
- Fig. 5 is a flow diagram illustrating a reader activation process
- Fig. 6 is a flow diagram illustrating exemplary processes of selecting, obtaining and reading an eBook using a digital rights management system according to the invention.
- the present invention is directed to a system for processing and delivery of electronic content wherein the content may be protected at multiple levels.
- a preferred embodiment of the invention is described, which is directed to the processing and delivery of electronic books, however, the invention is not limited to electronic books and may include all digital content such as video, audio, software executables, data, etc. Overview
- the Digital Rights Management (DRM) and Digital Asset Server (DAS) systems of the present invention advantageously provides such an infrastructure.
- the present invention makes purchasing an eBook more desirable than "stealing" (e.g., making an unauthorized copy of) an eBook.
- the non-intrusive DRM system minimizes piracy risk, while increasing the likelihood that any piracy will be offset by increased sales/distribution of books in the form of eBooks.
- the present invention provides retailers with a system that can be rapidly deployed at a low-cost.
- the primary users of the system are publishers and retailers, who use and/or deploy the system to ensure legitimacy of the content sold as well as copy protection.
- Exemplary users of the system may be the traditional publisher, the "leading edge” publisher, and the "hungry author.”
- the traditional publisher is likely to be concerned about losing revenue from their printed book publishing operation to eBook piracy.
- the leading edge publisher is not necessarily concerned with isolated incidents of piracy and may appreciate that eBooks commerce will be most successful in a system where consumers develop habits of purchase.
- the hungry author who would like to collect money for the sale of his or her works, is more interested in attribution (e.g., that the author's name be permanently bound to the work).
- the DRM System of the present invention accomplishes its goals by protecting works, while enabling their rightful use by consumers, by supporting various "levels" of protection.
- Level 1 the content source and/or provider may choose no protection via unsigned and unsealed (clear-text) eBooks that do not include a license.
- Level 2 A next level of protection (“Level 2”) is “source sealed,” which means that the content has been encrypted and sealed with a key, where the seal is made using a cryptographic hash of the eBook's title's meta-data (see below) and the key is necessary to decrypt the content.
- Source sealing guards against tampering with the content or its accompanying meta-data after the title has been sealed, since any change to the meta-data will render the title unusable; however, source sealing does not guarantee authenticity of the a copy of the title (i.e., source sealing does not provide a mechanism to distinguish legitimate copies from unauthorized copies).
- the author's name may be included in the meta-data for permanent binding to the content, thereby satisfying the "hungry author's" goal of attribution.
- a next level of protection (“Level 3”) is "individually sealed” (or “inscribed”).
- An "individually sealed” title is an eBook whose meta-data includes information related to the legitimate purchaser (e.g., the user's name or credit card number, the transaction ID or receipt number from the purchase transaction, etc.), such that this information is cryptographically bound to the content when the title is sealed.
- This level of protection discourages people from distributing copies of the title, since it would be easy to detect the origin of an unauthorized copy (and any change to the meta-data, including the information related to the purchaser, would make it impossible, or at least improbable, that the necessary decryption key could be unsealed).
- Source signed eBooks are titles that can be authenticated by a "reader” (which, as more particularly discussed below, is a user application that enables the reading of eBooks on a computing device, such as a PC, a laptop, a Personal Digital Assistant (PDA), PocketPC, or a purpose-built reading device).
- a “reader” which, as more particularly discussed below, is a user application that enables the reading of eBooks on a computing device, such as a PC, a laptop, a Personal Digital Assistant (PDA), PocketPC, or a purpose-built reading device.
- Authenticity may preferably be defined in three varieties: "tool signed,” which guarantees that the eBook title was generated by a trusted conversion and encryption tool; "owner signed,” which is a tool signed eBook that also guarantees the authenticity of the content in the copy (e.g., the owner may be the author or other copyright holder); and "provider signed,” which is a tool signed eBook that attests to the authenticity of its provider (e.g., the publisher or retailer of the content).
- the "tool,” the owner, and the provider may each have their own asymmetric key pair to facilitate the creation and validation of digital signatures of the information.
- a title may be both provider signed and source signed, which facilitates authentication of the distribution channel of the title (e.g., through a signature chain in the copy).
- Level 5 The strongest level of protection is “fully individualized” or “owner exclusive” (“Level 5"). "Fully individualized” titles can only be opened by authenticated reader applications that are “activated” for a particular user, thereby protecting against porting of a title from one person's reader (or readers) to a reader that is not registered to that person.
- the Reader In order for the reader of the present invention to open a title protected at Level 5, the Reader must be “activated” (i.e., the device on which the reader resides must have an activation certificate for a particular persona, and a secure repository). The process of Activation will be described in greater detail below with reference to Fig. 5.
- the systems of the present invention also define an architecture for sharing information between a reader, a content provider and a content source, how that information is used to "seal" titles at the various levels, and how that information must be structured.
- the availability of these choices will enable content sources to pick and choose which content will be sold to what users and using what protection (if any).
- the particular information may be used to sign and/or seal titles for use by a reader, and a compatible reader (which, in the case of level 5, may be a reader activated for a particular persona) may unseal the title and enable reading of the eBook.
- an exemplary system for implementing the invention includes a general purpose computing device in the form of a conventional personal computer or network server 20 or the like, including a processing unit 21, a system memory 22, and a system bus 23 that couples various system components including the system memory 22 to the processing unit 21.
- the system bus 23 may be any of several types of bus structures including a memory bus or memory controller, a peripheral bus, and a local bus using any of a variety of bus architectures.
- the system memory includes read-only memory (ROM) 24 and random access memory (RAM) 25.
- ROM read-only memory
- RAM random access memory
- a basic input/output system 26 (BIOS) containing the basic routines that help to transfer information between elements within the personal computer 20, such as during start-up, is stored in ROM 24.
- the personal computer or network server 20 may further include a hard disk drive 27 for reading from and writing to a hard disk, not shown, a magnetic disk drive 28 for reading from or writing to a removable magnetic disk 29, and an optical disk drive 30 for reading from or writing to a removable optical disk 31 such as a CD-ROM or other optical media.
- the hard disk drive 27, magnetic disk drive 28, and optical disk drive 30 are connected to the system bus 23 by a hard disk drive interface 32, a magnetic disk drive interface 33, and an optical drive interface 34, respectively.
- the drives and their associated computer-readable media provide non- volatile storage of computer readable instructions, data structures, program modules and other data for the personal computer or network server 20.
- exemplary environment described herein employs a hard disk, a removable magnetic disk 29 and a removable optical disk 31
- other types of computer readable media which can store data that is accessible by a computer, such as magnetic cassettes, flash memory cards, digital video disks, Bernoulli cartridges, random access memories (RAMs), read-only memories (ROMs) and the like may also be used in the exemplary operating environment.
- a number of program modules may be stored on the hard disk, magnetic disk 29, optical disk 31, ROM 24 or RAM 25, including an operating system 35 (e.g., Windows® 2000, Windows NT®, or Windows 95/98), one or more application programs 36, other program modules 37 and program data 38.
- an operating system 35 e.g., Windows® 2000, Windows NT®, or Windows 95/98
- a user may enter commands and information into the personal computer 20 through input devices such as a keyboard 40 and pointing device 42.
- Other input devices may include a microphone, joystick, game pad, satellite disk, scanner or the like.
- These and other input devices are often connected to the processing unit 21 through a serial port interface 46 that is coupled to the system bus 23, but may be connected by other interfaces, such as a parallel port, game port, universal serial bus (USB), or a 1394 high-speed serial port.
- a monitor 47 or other type of display device is also connected to the system bus 23 via an interface, such as a video adapter 48.
- personal computers typically include other peripheral output devices (not shown), such as speakers and printers.
- the personal computer or network server 20 may operate in a networked environment using logical connections to one or more remote computers, such as a remote computer 49.
- the remote computer 49 may be another personal computer, another network server, a router, a network PC, a peer device or other common network node, and typically includes many or all of the elements described above relative to the personal computer 20, although only a memory storage device 50 has been illustrated in Fig. 2.
- the logical connections depicted in Fig. 2 include a local area network (LAN) 51 and a wide area network (WAN) 52.
- LAN local area network
- WAN wide area network
- the personal computer or network server 20 When used in a LAN networking environment, the personal computer or network server 20 is connected to the local network 51 through a network interface or adapter 53. When used in a WAN networking environment, the personal computer or network server 20 typically includes a modem 54 or other means for establishing communications over the wide area network 52, such as the Internet.
- the modem 54 which may be internal or external, is connected to the system bus 23 via the serial port interface 46.
- program modules depicted relative to the personal computer or network server 20, or portions thereof may be stored in the remote memory storage device 50. It will be appreciated that the network connections shown are exemplary and other means of establishing a communications link between the computers may be used.
- the client architecture 90 may be implemented on the personal computer 20 of FIG. 1 or other appropriate computing device, such as a palm-sized computer, laptop computer, or closed device that is purpose-built for reading eBook titles.
- Client architecture 90 includes a reader shell 92 (or "reader 92") for reading the eBook titles 10 and a web browser 102 (e.g., the MICROSOFT® INTERNET EXPLORER browser) for contacting Retailer/Distributor sites.
- a cryptographic transform is provided, which may be a plug-in for an Information Technology Storage System (ITSS) 5.2 96.
- ITSS Information Technology Storage System
- the cryptographic transform is a software component that will unseal the content key and decrypt the content stream coming out of the eBook file or "LIT file" 10 (shown in FIG. 4).
- the cryptographic transform is preferably implemented as an extension to existing ITSS 96 code being used by the Reader 92 for LIT files 10. This extension is instantiated whenever encrypted content is accessed.
- a Bookplate API 94 is provided which returns the purchaser's name (or other information related to the purchaser) from the cryptographically hashed Bookplate stream 14C inside the DRM Storage object 14 of each title 10 (e.g., in the case of individually sealed titles that include the purchaser's name or other identifying information in their meta-data).
- the string returned by this function may be used on the book cover page 100 to identify the rightful owner of the title 10; an example, in which the string is the user's name, is depicted in FIG. 2. If the user clicks on the name displayed (or taps, in the case of touch-screen devices) or a Copyright Notice/Icon on the cover page, a dialog-box emphasizing the copyrighted nature of the publication may be rendered.
- Local store 98 is preferably a directory or folder where eBooks may be stored. (As discussed below in connection with FIG.
- eBook 10 is a file containing the content of the book, as well as other information.
- local store 98 may simply be a directory called "C: ⁇ MyLibrary.”
- Browser 102 is a typical browsing program (such as the MICROSOFT INTERNET EXPLORER browser or the NETSCAPE NAVIGATOR browser); it is used to contact retail sites that sell eBooks and to engage in transactions with those sites.
- reader 92 may have an "integrated bookstore” feature that contacts retail sites and facilitates shopping without the use of a general browsing application 102.
- the DRM Manager 80 is a component that exposes a set of internal APIs to the reader 92, which manage the authentication of applications requesting access to encrypted LIT files, in addition to carrying-out decryption of content, unsealing of keys, returning of a Bookplate string (e.g., the user's name for display in the case of, for example, level 3 or level 5 titles), etc.
- a Bookplate string e.g., the user's name for display in the case of, for example, level 3 or level 5 titles
- the code for reader 92 may include an interface call that is part of the API, where the call invokes computer-executable instructions to carry out one of the above-listed functions.
- the computer-executable instructions may be embodied in a COM object and/or a dynamic- link library (DLL) for use by the reader 92.
- DLL dynamic- link library
- Different versions of the COM object and/or DLL may be provided to accommodate updates to technologies (i.e., to allow reader 92 to work transparently, though a constant API, with various different DRM technologies, some of which may not even have been developed at the time that the code for reader 92 was created.)
- the developer/administrator of architecture 90' may provide a specification or description of interface (e.g., a set of method names/labels for the API) to the developer of the reader 92, and may then provide a DLL or COM object (or successive DLLs and COM objects) to the users of client architecture 90'.
- the developer/administrator of architecture 90' may be the same entity who provides reader 92, and may define an API for DRM manager 80 to facilitate communication with the various components of architecture 90'.
- the secure repository 82 is an executable that is downloaded during the Activation process and enables the Reader to open Fully Individualized (Level 5) eBooks (LIT files).
- the secure repository 82 is preferably unique (or substantially unique) for each computing device on which architecture 90' is implemented (e.g., a PC or purpose- built reading device).
- Secure repository 82 holds a private key that is required for opening Level 5 protected titles. Secure repository 82 may be obtained during the activation process (described below).
- the computing device on which architecture 90' resides uploads (via a network, such as network 52) a hardware ID to a "secure repository server" (not shown), where the hardware ID is based on hardware associated with the computing device (e.g., by serial numbers or other numbers associated with that hardware) and uniquely identifies the device.
- the "secure repository server” may then download to the computing device a secure repository whose code is based on, and whose proper execution is preferably tied to, the computing device on which architecture 90' is implemented, where the secure repository performs functions including applying a unique private key that is used in the process of unsealing the content key, as well as decrypting the content.
- the content in a level 5 title is encrypted with a symmetric key
- the symmetric key is encrypted with a public key contained in an activation certificate
- the encrypted symmetric key is sealed with the title
- the activation certificate's private key is contained in the activation certificate in a form encrypted by the public key of secure repository 82.
- secure repository 82 decrypts the activation certificate's private key using the private key of secure repository 82, and then the activation certificate's private key is used to decrypt the symmetric key.
- a system and method for creating secure repository 82 is described in Attorney Docket Number MSFT-0126, filed concu ⁇ ently herewith and expressly incorporated by reference in its entirety.
- the activation ACTIVEX control 84 is a component used by the client computing device during the activation process (see below).
- ACTIVEX control 84 is used by a browser (e.g., a MICROSOFT INTERNET EXPLORER browser), which, in turn, is hosted by reader 92 (although ACTIVEX control 84 could also work with a stand-alone browser.)
- the activation ACTIVEX control 84 exposes methods that provide for the validation of servers (e.g., the "activation server(s)") to which reader 92 (or the computing device on which it resides) is connected, computation of the hardware ID, downloading of secure repository 82 (and associated activation certificates), and authentication and installation of the downloaded executable.
- reader 92 may contain instructions to detect whether reader 92 has been activated and, if it has not been activated, may issue one or more instructions to activation ACTIVEX control 84 to perform the activation, and those instructions may include instructions to perform the acts listed above.
- the web commerce object 86 is distributed as both an ACTIVEX control and a NETSCAPE NAVIGATOR® plug-in. It may be used, via client-side scripting, by retailers when selling fully individualized copies (i.e., Level 5 protected copies).
- This COM object 86 is preferably wrapped by client side script functions, which abstract the actual methods and underlying differences between the plug-in and the ACTIVEX control.
- the key methods provided by the web commerce object 86 and its accompanying interface are: detection of the installation of reader 92, detection of activation status, launching of the reader into the activation process (see, FIG.
- a script (such as a Java script) may be distributed to retailers of eBooks for inclusion in the retailer's web pages.
- the script may expose function calls that implement the above-listed methods, and the script may include code to determine whether it is being executed by a MICROSOFT INTERNET EXPLORER browser or a NETSCAPE NAVIGATOR browser, where it uses the ACTIVEX control in the first case, and the plug-in in the second case.
- a retailer may effectively transmit instructions to be performed on the client computing device by transmitting the script that defines the function calls along with script instructions that invoke the functions.
- a retailer may wish to detect whether reader 92 is installed on a client's computing device, so the retailer may transmit to the client device a web page containing the Java script that defines the function of detecting whether reader 92 is installed, along with an instruction to invoke that function.
- the detecting function itself may include code to perform the detecting function of either the ACTIVEX control or the plug-in depending on the brand of browser the script is executing on. In this way, the particular browser is transparent to the retailer, who may create a single web page that performs any of the above-listed functions on either browser.
- eBook File Structure Referring now to FIG. 4, an exemplary eBook (or "LIT") file structure is shown.
- the eBook 10 contains content 16, which is text such as a book (or any electronic content, such as audio, video, etc.) that has been encrypted by a key (the "content key"), which itself has been encrypted and/or sealed.
- the key is a symmetric key 14A that is sealed with a cryptographic hash of meta-data 12 or, in the case of level 5 titles, with the public key of the user's activation certificate.
- This key is stored either as a separate stream in a sub-storage section of the eBook file (stream 14A of DRM Storage 14 in FIG. 4) or, in the case of level 5 titles, in the license.
- stream 14A contains a license, which is a construct that defines the rights that the user can exercise upon purchase of the title. In titles that have a license, the content key is contained within the license.
- the source stream 14B which may include the name of the publisher (or other content source), as well as the bookplate stream 14C, which, for individually sealed (level 3 and/or level 5) titles, includes the consumer's name as provided by the retailer (which may, for example, be obtained as part of the commercial transaction of purchasing an eBook 10, such as from the consumer's credit card information).
- the method of calculating the cryptographic hash that encrypts and/or seals the symmetric key 14C is preferably a "secret" known only to trusted content preparation tools and trusted rendering applications. Using a hash in this way may complicate/discourage tampering with the meta-data 12 contained with the eBook 10. It is noted that any method may be used to "seal" an eBook, so long as such method provide some measure of tamper resistance to the eBook 10.
- the meta-data 12 may include a copyright tag, which describes the rights granted to the user or purchaser by the content source (e.g., the publisher).
- reader 92 may display to a user the text included in the tag, for example when the user taps on the name displayed on cover page 100 (shown in FIGS. 2 and 3) in the case of individually sealed copies, or on the "Copyright Notice” link (in the case of source sealed copies with a copyright tag), which may also be rendered on cover page 100.
- the reading application based on the disclosed system may render a generic copyright notice such as the following message, or a similar message: "No part of this electronic publication may be reproduced, re-distributed, or retransmitted in any form or by any means, electronic, mechanical, printing, photocopying, recording, or by any information storage and retrieval system, without written consent from the publisher.” It will be appreciated that the act of displaying a copyright notice serves to deter typical users from attempting to copy their eBooks, and such a notice may be displayed at any point during the viewing of an eBook when it is deemed advantageous to remind users that they are viewing proprietary material.
- Activating a Reader As noted above, activation enables a reader client for purchase, download, and viewing of fully individualized (i.e., level 5) eBook titles. Because computers running one of the MICROSOFT WINDOWS® operating system (or other general- purpose operating systems) are essentially open platforms where anyone can debug a • running process and create "patches” (software modification modules) for hacking the security of any application, the need to establish a security framework around the Reader Client is a pre-requisite for providing true copy protection/resistance. "Activation" is the process by which this framework is established for reader 92.
- the activation process be performed using a "namespace authority,” such as MICROSOFT® PASSPORTTM, as the activation database.
- PASSPORTTM advantageously allows the linking of the user's activation certificate to his/her persona.
- a "persona” is a unique identifier that can be tied to a user and can be securely authenticated by an out-of-band process - e.g., a username and password form on a web browser for use over a secure socket layer (SSL) is an example embodiment of such an process.
- SSL secure socket layer
- an individual may read purchased titles on any reader that has been activated using the "persona” under which the title was purchased.
- the activation information may be made available to multiple merchants in order to eliminate the need for server-to-server communications between the merchants and the activation authority, while mitigating privacy concerns.
- a Reader is activated.
- the user purchases a purpose-built eBooks reading device, or obtains reader software for a PC (e.g., via CD-ROM 31, or download via a wide-area network 52 such as the Internet)
- the user is encouraged to activate the reader the first time the reader is launched (e.g., immediately after Setup for the Laptop/Desktop application). For example, each time the reader is launched, it may check to see whether it has been activated (or another software object may check whether the reader has been activated). If the reader has not been activated, the reader will render a dialog box reminding the user he or she will not be able to acquire premium titles that require full individualization (i.e., level 5 protection).
- An example of such a reminder is:
- the dialog may include buttons to allow the user to activate the reader 92 (e.g., the dialog box may display two buttons marked “Activate Reader now” and “Activate Reader later”).
- a “checkbox” may be included in the dialog box with a message such as "Please don't show me this message in the future," which the user would check if he or she has no interest in acquiring level 5 titles, so that the reader would cease displaying the activation message upon launch. If the Reader has been previously activated, the PASSPORT ID or persona ID of the last user that activated the reader will be rendered as well as in a "splash screen,” such as "Activated for ⁇ persona>.” User may also activate the reader from any retail web site, while shopping with a stand-alone browser.
- merchants may leverage a method exposed by the Reader Web Commerce object 86 and associated script wrapper API to render a link and/or button that launches reader 92 as a separate process.
- a merchant may include in a web page a script function that launches reader 92 into its activation feature, which then guides the user through the activation steps, just as if the user had started the reader and launched the activation feature on his own.
- the script function may perform the launch either using an ACTIVEX control or a plug-in according to what type of browser it is running on.
- the merchant may also include in a web page an instruction (using the web commerce object 86 and associated script wrapper) to first detect whether reader 92 is activated, and launch the activation process only if reader 92 has not been previously activated.
- reader 92 may be using an "integrated bookstore” feature of the reader (e.g., a feature that allows the user to shop various web sites that sell eBooks without using a browser), and the activation process may be launchable from (or part of) the "integrated bookstore” feature of reader 92.
- the activation process may include the steps illustrated in FIG. 5.
- the reader client opens into the "integrated bookstore” section and connects, via Secure Sockets Layer (SSL), to the activation servers, where users are prompted to login using their PASSPORTTM credentials (step 152). If the user does not have a PASSPORTTM account, he/she will be provided with at link to sign-up for one (step 154). It is preferable that the URL to the Activation Server be hard-coded into an Activation ACTIVEX control 84 using a SSL connection such that the client can guarantee that the servers are truly the activation servers.
- SSL Secure Sockets Layer
- a PASSPORTTM API is queried for the user alias and e-mail address (step 158). Thereafter, at steps 160-162, the Activation Servers will request that the client (via the ACTIVEX control) upload a unique hardware ID (which, as noted above, may be derived from hardware components on the user's computing device which substantially uniquely identify the user's computing device). Next, it is determined whether this is a first activation for reader 92 (step 164).
- readers may be activated more than once with different PASSPORT IDs; if reader 92 has been activated with another PASSPORT ID, then a warning is displayed, as depicted at step 166.) If it is determined that this is a new activation at step 164, then it is determined whether the user has activated more than five readers in the past 90 days. If so, then an error message is rendered at step 172 including a support telephone number, and the process terminates at step 198. As noted above, the limitation of activating no more than five readers in the past 90 days is merely exemplary. Limiting activation of readers by time and number helps to prevent wide dissemination of a level 5 eBook title for viewing on thousands (or millions) of readers throughout the world.
- the "five readers in ninety days" limitation in the example of FIG. 5 is merely exemplary, however, as other limitations on activation may be imposed without departing from the spirit and scope of the invention.
- the activation limitation depicted in FIG. 5 could be extended by allowing additional activations once a predetermined period of time elapses, e.g., one additional activation after a subsequent 90 day period elapses up to a limit of 10 total activations.
- an activation page is rendered (step 170) for the user to fill out. If the user transmits the form in an incomplete format (detected at step 174), the page may be re-rendered until the user completes the form.
- step 176 it is determined if the present activation is a recovery (i.e., an attempt to "reactive" a reader that has been previously activated but become unusable or disabled for some reason). If the present activation is not a recovery, then a new record is created for the user and reader and the number of readers associated with the user is incremented (step 180).
- a pre-generated secure repository key pair is retrieved from a database (step 182) and activation certificates are also generated (step 184).
- the activation certificate may include a public/private key pair whose private key has been encrypted with the public key of the secure repository key pair.
- the activation keys, User ID, and Machine ID are persisted in a database (not shown) at step 186.
- the secure repository keys are not persisted, and any new secure repository that needs to be created and delivered in the future would have a new key pair (and the activation certificate delivered with that new secure repository may contain the persisted activation key pair, but with the private key encrypted to the (new) public key of the (new) secure repository).
- an activation certificate is generated (step 178) using the stored public/private key pair from a prior activation (the public/private key pair being retrieved from the database in which it was persisted at step 186), and processing continues at step 188.
- the activation server(s) generate a secure repository executable 82.
- the secure repository executable 82 is digitally signed, and based on and/or bound to a machine ID.
- the activation server(s) also generate an activation certificate, which is preferably tied to the user's persona through his/her PASSPORTTM ID).
- the secure repository executable 82 and activation certificate are then downloaded to the client (steps 188 and 190).
- the activation certificate is encrypted during download (e.g., to protect any information contained in the certificate that relates to the persona to which it is tied).
- the activation certificate is later uploaded to a "download” or “fulfillment” server during the eBook acquisition process described below in connection with FIG. 6 (i.e., as part of the process of acquiring a level 5 title).
- the user's PASSPORTTM ID is encrypted and stamped in the PC Registry as part of this download (when reader 92 is installed on a computing device that has a registry), for upload during commercial transactions.
- the PASSPORTTM ID is stored separately from the activation certificate (even though it may be included in the activation certificate) so that the stored PASSPORT ID may be compared with the PASSPORT ID in the activation certificate during the acquisition of a level 5 title, thereby helping to prevent theft of content.
- step 192 it is determined whether the download of secure repository 82 and the activation certificate has succeeded. If not, an event is logged and the download is attempted again (steps 194 and 192). If the download was successful, then at step 196, the user may be provided with a page that "congratulates" him/her on activating reader 92 and informing him/her that the activation process is complete.
- the page may include links where the user may obtain "promotional" or "free” eBooks. This link will change depending on the promotion (i.e., the server may download a different page with different links if the "promotion" changes). This link may also leverage a method exposed by the Activation ACTIVEX Control 84 to return the user to the library page on the reader.
- the user visits a retail site and chooses book(s) in a manner implemented by the retailer (step 200).
- the site may provide a web page that displays (as links) various books that the user may wish to purchase.
- the user then pays for the titles (step 202), such as by submitting a credit card number (or by referencing a stored credit card number if the user has an account with the site; in one usage, the user's PASSPORT ID may reference such a number or account).
- the transaction concludes at step 204 with a receipt page.
- the receipt page may contain information "confirming" the order or thanking the user for his/her order, and also contains links (HTTP POST requests) for downloading each title purchased.
- a client-side script populates the body of the POST with the activation certificate, via web commerce object 86.
- web commerce object 86 is used to retrieve the activation certificate for provision to the retailer's site.
- the activation certificate may be provided to the retailer web site, which then creates an HTTP request (i.e., a POST request) which includes an encrypted blob (i.e., in the body of the POST).
- the HTTP request (including the encrypted blob) is then rendered as a link at the client site, where the client clicks the link to download the purchased title (as described below).
- the HTTP request and encrypted blob (which are generated by the retailer, who, preferably, is in privy with the fulfillment site) contains information that identifies the particular eBook to be provided to the purchaser, as well as information that demonstrates to the fulfillment site that the encrypted blob was generated by a retailer for whom the fulfillment site has agreed to fulfill eBook orders.
- client side software adds the activation certificate to the body of the POST to allow the symmetric key of the eBook to be encrypted for use with readers activated to the user's persona.
- the browser Upon clicking on any of the links at step 206, the browser initiates a download from a download or "fulfillment" server specified in the receipt page.
- the download server For individually sealed (“inscribed”) copies, the download server adds the consumer's name (or other identifying information as determined by the retail site, such as the user's credit card number, a transaction ID, etc.) to the title meta-data and re-seals the symmetric key using the new cryptographic hash resulting from the new meta-data, which now includes such identifying information.
- the particular information to be included is determined by the retailer and provided as part of the encrypted blob in the body of the POST.
- For fully individualized copies (level 5) a license is generated and embedded in the LIT file, in addition to the bookplate being created. This license contains the symmetric key that encrypted the LIT file "sealed" with the public key in the activation certificate.
- the download server logs the transaction and, on the client, the reader 92 may be launched automatically (step 210).
- the title may, at this time, be moved into local store/LIT store 98, or another folder or directory designated for the storage of eBook titles.
- the eBook may be opened to its cover page 100.
- a level 3 and a level 5 protected title there may be no perceptible difference between a level 3 and a level 5 protected title. Both include a bookplate (e.g., inclusion of the user's name on the cover page 100). Users may only notice the difference if they try to move a level 5 eBook to an installation where the reader 92 has not been activated for the persona that purchased the eBook. In this case, a level 5 title will not open on such a reader 92, whereas a level 3 title will open.
- the DRM system architecture is driven by several scenarios that consumers of eBooks are expected to encounter. Exemplary scenarios are explained below. Such scenarios include buying a book on impulse, reading a book on multiple readers 92, activating a reader 92, and recovering a lost or damaged title.
- the scenarios have variations according to the level of copy protection chosen by the publication provider. The variations impact the user because they determine in some cases what the user must do in order to acquire and open a title on one or more readers 92.
- a consumer browses a retailer's web site using a web browser or a "bookstore” feature inside reader application 92, he or she may select books to be purchased (e.g., build a "shopping cart"), and proceed to checkout in accordance with the rules and/or procedures of the retail site.
- books to be purchased e.g., build a "shopping cart”
- the retail site may request information which uniquely identifies the customer.
- the retailer acquires the user's name from a (preferably) trusted source for inclusion in the meta-data, so that a user could not purchase a title under a false name and escape detection if the title is illicitly distributed. In this scenario, other information from which the purchaser can be traced, such as the user's credit card number, a transaction ID, etc., could be used to serve the same purpose.
- the retail site will also need the activation certificate (preferably obtained by use of web commerce object 86 an its associated script wrapper) in order to properly encrypt the content key.
- the retail site may then provide the customer with the steps that are required (e.g., in the form of a web page that explains the steps and how they may be accomplished and/or provides hyperlinks to be followed).
- the customer Upon completing the transaction, it is preferable that the customer receive a receipt to confirm transaction (i.e., an order confirmation page) or receive informational e ⁇ ors reporting issues with processing their transaction in accordance with the retail site's rules and policies.
- the purchaser follows download instructions embedded in the receipt for the books they purchased, according to the rules and policies set forth by retail site. (E.g., the receipt may contain a hyperlink to be clicked by the user in order to begin the download of an eBook.) After the eBook has been downloaded, it may be opened for reading by reader 92.
- the DRM System of the present invention provides for such usage.
- publishers, distributors and merchants may be holders of symmetric keys that are used to encrypt eBooks titles.
- one key is used per title or SKU/ISBN/EAN.
- the symmetric key is required to open the title and is embedded in the license/DRM stream during the purchase.
- the process of encrypting and later embedding the symmetric key will be referred to herein as "sealing.” It is noted that the symmetric key may be encrypted using a public key associated with the consumer's activation certificate key-pair, or, in the case of source and individually sealed copies, may be encrypted with a cryptographic hash of the meta-data.
- each instance of the reader 92 needs to be able to access the symmetric key 14A embedded in the title's License/DRM stream.
- accessing symmetric key 14A is accomplished by using (e.g., hashing) the title's meta-data to unseal, and possibly decrypt, the symmetric key 14A, which is preferably done by DRM manager 80.
- the merchant/distributor of the title encrypts the symmetric key 14A with a cryptographic hash, which is programmatically generated from a hash of the title's meta-data (which may include the rightful owner's name, for example, in the case of level 3 titles).
- Reader 92 and/or DRM Manager 80 then uses the same hash algorithm to unseal the symmetric key. Users that tamper with the contents of the title's meta-data will no longer be able to read the eBook title, since reader software will not be able to decrypt/unseal the symmetric key 14 A, because the new meta-data would result in a different hash.
- the symmetric key 14A is encrypted with the public key of the user's activation certificate and inserted into the license, where the license is inserted into DRM storage 14 in stream 14A (see FIG. 4) prior to download.
- each reader 92 activated to a particular persona has an activation certificate containing the public/private key pair associated with the persona.
- a title may be read on any reader 92 that has been activated to a particular persona.
- the activation certificate is obtained during the activation process.
- the aforementioned "license,” as further discussed below, is a construct that defines the rights that the consumer can exercise upon purchase of the content and, where it is present, it also contains the content key (i.e., the symmetric key).
- Client architecture 90' decrypts the encrypted symmetric key contained in the license of a level 5 title by applying the private key from the activation certificate, where the activation certificate private key is stored in encrypted form and is obtained by using secure repository 82 to apply its public key to the encrypted private key, as discussed above. Beyond ensuring that a reader 92 has been activated using the credentials (i.e., persona) for which a level 5 title was prepared, no other action is required to permit a user to read a title on multiple readers 92.
- the act of ensuring that the reader is activated to the correct persona takes place implicitly - that is, if the reader 92 has not been activated to the person with which a level 5 title is associated, then the reader 92 will not have access to the activation certificate (and its private key) that allows the reader to access symmetric key 14A needed to decrypt content steam 16. All the level 5 titles purchased for a reader 92 have their content keys encrypted to the public key included in the activation certificate associated with the reader/persona.
- the user When the user installs or purchases another reader 92, the user only needs to activate the new reader with the same persona to receive the same activation certificate (or, more precisely, an equivalent activation certificate with the same public/private key pair, whose private key, as discussed above, is encrypted with the public key of the secure repository resident on the new reading device/installation).
- OpenCards each contain a key or key pair to which titles are sealed.
- the reader 92 When the user wishes to read the same titles on a different reader 92, the reader 92 must be installed on a device having an OpenCard slot. Accordingly, when the user inserts the OpenCard in the device, the titles are automatically available for reading. Thus, no special steps are required when users want to read OpenCard-based titles on multiple readers 92, since, in effect, the title is bound to the card rather than to a particular activation certificate and/or persona. Upgrading or Replacing the Reader
- enabling users to read previously purchased content on new readers 92 is performed using the same mechanisms that allow them to read on multiple readers 92: the new reader 92 acquires the required activation certificate (i.e., an activation certificate with the key pair contained in previous activation certificates issued to the user's persona). Enforcing a limit on the number of activations of readers 92 in the manner described above simplifies the upgrade/replacement process.
- deleting the activation certificate does not "reset" the ambient limitation on new activations for a particular persona.
- a user may backup titles, for example, by copying eBook file 10 to removable magnetic disk 29, optical disk 31 , or a removable, non-volatile memory card. If the titles ever become lost or damaged on the primary storage of a particular reading device, the titles can be restored from backup storage. However, in the case where titles are, for some reason, not backed up, it may be possible to recover any titles lost or damaged from the retailer. For example, the user may keep the receipt page from a title purchase (i.e., the page that contains the download links), and simply "re-visit" the link to connect to a download server to obtain a new copy of the eBook (“LIT”) file 10 that embodies the title.
- LIT new copy of the eBook
- receipts have an expiration time/date (e.g., the encrypted blob associated with the link that is clicked to contact the download server may have an expiration time/date incorporated within it), such that clicking a download link more that a predetermined amount of time after it was issued (e.g., one hour) will cause the download server to refuse to download the title.
- the retailer may have a record of the purchase and may provide a new copy of the receipt/download link.
- the user will have to connect to the merchant from which the eBook title was purchased.
- the merchant site will present the user with a list of receipts from which the user will choose the appropriate one. The user may then locate the title they wish to recover, and click on the link provided for download. Barring any restrictive policies from the merchant site, the user should be able to re-download the eBook title they lost. It is generally not necessary for the merchant to restrict re-downloading of titles, since the user was always free to copy the title from machine to machine (subject, of course, to the condition that level 5 titles do not work on readers activated for a persona other than the persona that purchased the title), and thus restricting the re- downloading of titles provides no additional copy protection. It should be observed, however, that the decision to provide free "re-downloading" privileges is within the discretion of the merchant, since the merchant may view the re-downloading as a service for which the merchant desires to collect a fee.
- the reader for laptop and desktop PCs be designed to support multiple users sharing the same computer. So long as the users have different local accounts on the PC they share, the reader may store all user-specific data on the appropriate user data-space, keyed off of their respective profiles and "current user" registry values. For example, eBook files 10 may be stored, for each user, in a directory logically contained within the top-level directory for that user's profile.
- the process may ensure that the reader 92 being activated and the components being downloaded (e.g., secure repository 82 and the activation certificate) are tied to the current user (e.g., the currently logged-in user on a workstation running the MICROSOFT WINDOWS NT operating system).
- the components being downloaded e.g., secure repository 82 and the activation certificate
- the current user e.g., the currently logged-in user on a workstation running the MICROSOFT WINDOWS NT operating system.
- the reader may display the PASSPORTTM name for the user for whom it was activated, for example on a splash screen and a quick settings page. On the quick settings page, the PASSPORTTM name for the user that last activated the reader will be shown immediately above the activation link. This allows for proper handling by the client-side web commerce object 86 of the activation certificate and encrypted PASSPORTTM ID upload, during the shopping process for fully individualized titles (level 5 protected).
- the process by which multiple users can activate the same reader 92 on an exemplary shared system is as follows. The Reader will check whether it has been Activated during startup. This check is performed by checking for an ActivationComplete RegKey, under
- HKEY_CURRENT_USER Software ⁇ Microsoft ⁇ eBook ⁇ . Because this RegKey is written to the HKCU branch, it ensures that it will be user-specific and tied to the currently logged on username on the computer. If this RegKey is not found or is not set to 1 (i.e., a successful activation has taken place) the user follows the steps to activate the reader, as discussed above. After the download is complete, the activation ACTIVEX control 84 queries the operating system for the username for the currently logged on user on the PC. If no username is returned, it will assume "DefaultUser" as the username.
- the ACTIVEX control 84 queries the registry to find out where the reader was installed. It then creates a directory under the MS Reader installation directory that will be named: ⁇ username> ⁇ SecureRepository ( ⁇ username> as determined by the operating system query). Once the directory is created, the ACTIVEX control 84 populates the HKCU ⁇ .. ⁇ eBook ⁇ SecureRepository key, with the full path to that directory. In that directory, the ACTIVEX control 84 installs secure repository 82 and the activation certificate. It then executes secure repository 82 with the "-install" parameter for self-registration of secure repository 82. Assuming all of the above steps succeeded, the ACTIVEX control 84 stamps the ActivationComplete RegKey.
- the license is a construct that defines the rights that the user can exercise upon purchase of the title, in addition to defining the requirements for unsealing the symmetric key to exercise those rights.
- Examples of "rights" that could be represented in the license are rendering the content (e.g., in the example of text content, reading it on the monitor of a PC), printing the content, or copying-and-pasting portions of the content. It is noted that the exemplary license format is not intended to limit the scope of the present invention as other license formats having greater or lesser information are possible.
- XML Extended Rights Markup Language
- XrML Extended Rights Markup Language
- XrML also provides for great interoperability and will allow for any technology investments made on components that generate and manage these licenses to be leveraged long-term.
- only those expressed in the license are granted to the license - i.e., if a right is not expressly granted, it is denied.
- other arrangements are possible, such as where a default set of rights is presumed unless expressly denied or modified by the license.
- top-level tags in a collapsed format are as follows:
- the first line of the XrML structure above defines the version of the XML language used to create the XrML license.
- the second line specifies the name of the DTD file used to parse the XML file.
- the BODY tag provides the type of license, the version of the XrML specification used when the license was generated, and the date when it was issued. It is also the meta-tag for the whole license, which has the following sub-sections: WORK, LICENSOR, LICENSEDPRINCIPALS, and SIGNTURE.
- WORK contains all the semantic information about the license, including the usage RIGHTS.
- the contents of this field (including the tags) constitute the data that is hashed and signed.
- LICENSOR contains information pertaining the entity that issued the license, usually a Retailer.
- LICENSEDPRINCIPALS contains a se ⁇ es of p ⁇ ncipals that must be authenticated when exercising the usage ⁇ ghts specified m a license.
- SIGNATURE contains the hash digest of the LICENSEBODY as well as information about how the hash was created, including the algorithm used. It also includes the DIGEST encoded in accordance with the algorithm named by the licensor when issuing the license. The DIGEST and SIGNATURE tags provide the authentication information used to validate the entire license in a way that cannot be tampered with. Structure of the BODY tag
- the main tag of an XrML license construct is the BODY tag, which contains the following tags:
- Secure repository 82 authenticates a license via the SIGNATURE and DIGEST tags. This is such that the client software can validate that the content being rendered came from a trusted source. A more detailed example of these tags is provided below:
Abstract
Description
Claims
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Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003005174A1 (en) * | 2001-07-06 | 2003-01-16 | Nokia Corporation | Consumption of digital data content with digital rights management |
WO2003015416A1 (en) * | 2001-08-09 | 2003-02-20 | Matsushita Electric Industrial Co., Ltd. | Unified rights management for ipmp systemsystem |
WO2003027814A1 (en) * | 2001-09-05 | 2003-04-03 | Siemens Aktiengesellschaft | Method for transmitting copyright protected data in a communication system and corresponding communication transmitter device and communication receiver device |
WO2003050715A1 (en) * | 2001-12-10 | 2003-06-19 | Redbank Manor Pty Ltd | A system for secure distribution of electronic content and collection of fees |
WO2003058620A2 (en) * | 2001-12-31 | 2003-07-17 | General Instrument Corporation | Methods and apparatus for digital rights management |
GB2397673A (en) * | 2000-06-05 | 2004-07-28 | Sealedmedia Ltd | Digital rights management |
GB2406922A (en) * | 2003-10-09 | 2005-04-13 | Vodafone Plc | System for authorising access to encoded content by an approved application and authorised user |
EP1573478A2 (en) * | 2002-12-19 | 2005-09-14 | International Business Machines Corporation | A method for distributing software licenses using xml documents |
EP1303097A3 (en) * | 2001-10-16 | 2005-11-30 | Microsoft Corporation | Virtual distributed security system |
WO2006019608A1 (en) * | 2004-07-16 | 2006-02-23 | Catch Media, Inc. | Method and system for managing rights for digital music |
US7016877B1 (en) | 2000-08-04 | 2006-03-21 | Enfotrust Networks, Inc. | Consumer-controlled limited and constrained access to a centrally stored information account |
US7016875B1 (en) | 2000-08-04 | 2006-03-21 | Enfotrust Networks, Inc. | Single sign-on for access to a central data repository |
US7191193B2 (en) | 2003-01-02 | 2007-03-13 | Catch Media | Automatic digital music library builder |
US7224805B2 (en) | 2001-07-06 | 2007-05-29 | Nokia Corporation | Consumption of content |
US7257581B1 (en) | 2000-08-04 | 2007-08-14 | Guardian Networks, Llc | Storage, management and distribution of consumer information |
US7467141B1 (en) | 2000-08-04 | 2008-12-16 | Grdn. Net Solutions, Llc | Branding and revenue sharing models for facilitating storage, management and distribution of consumer information |
US7487130B2 (en) | 2000-11-07 | 2009-02-03 | Grdn. Net Solutions, Llc | Consumer-controlled limited and constrained access to a centrally stored information account |
SG155065A1 (en) * | 2003-06-05 | 2009-09-30 | Intertrust Tech Corp | Interoperable systems and methods for peer-to-peer service orchestration |
US7631318B2 (en) | 2002-06-28 | 2009-12-08 | Microsoft Corporation | Secure server plug-in architecture for digital rights management systems |
US7708202B2 (en) | 2005-12-30 | 2010-05-04 | Reflexis Systems, Inc. | System and method for facilitating sales utilizing customer relationship management technology |
US7761176B2 (en) | 2003-01-02 | 2010-07-20 | Catch Media, Inc. | Promotional portable music players |
US7827156B2 (en) | 2003-02-26 | 2010-11-02 | Microsoft Corporation | Issuing a digital rights management (DRM) license for content based on cross-forest directory information |
US7861281B2 (en) | 2005-12-30 | 2010-12-28 | Reflexis Systems, Inc. | System and method for facilitating the transfer of information relating to quality of an organization |
US7891007B2 (en) | 2002-06-28 | 2011-02-15 | Microsoft Corporation | Systems and methods for issuing usage licenses for digital content and services |
US7957990B2 (en) | 2005-12-30 | 2011-06-07 | Reflexis Systems, Inc. | System and method for managing asset installation and evaluation |
JP2011150717A (en) * | 2002-03-14 | 2011-08-04 | Contentguard Holdings Inc | Method and system for processing right expression |
US8028039B1 (en) | 2005-12-23 | 2011-09-27 | Reflexis Systems, Inc. | System and method for communicating data between wireless mobile hand-held computer and a back-end computer system |
US8644969B2 (en) | 2003-01-02 | 2014-02-04 | Catch Media, Inc. | Content provisioning and revenue disbursement |
US8666524B2 (en) | 2003-01-02 | 2014-03-04 | Catch Media, Inc. | Portable music player and transmitter |
US8694352B1 (en) | 2003-04-22 | 2014-04-08 | Reflexis Systems, Inc. | System and method for providing handheld field force data gathering automation in a big box retail environment |
US8725646B2 (en) | 2005-04-15 | 2014-05-13 | Microsoft Corporation | Output protection levels |
US8918195B2 (en) | 2003-01-02 | 2014-12-23 | Catch Media, Inc. | Media management and tracking |
US9245266B2 (en) | 2004-06-16 | 2016-01-26 | Callahan Cellular L.L.C. | Auditable privacy policies in a distributed hierarchical identity management system |
US9398020B2 (en) | 2004-06-16 | 2016-07-19 | Callahan Cellular L.L.C. | Graduated authentication in an identity management system |
US9436804B2 (en) | 2005-04-22 | 2016-09-06 | Microsoft Technology Licensing, Llc | Establishing a unique session key using a hardware functionality scan |
US9928508B2 (en) | 2000-08-04 | 2018-03-27 | Intellectual Ventures I Llc | Single sign-on for access to a central data repository |
Families Citing this family (230)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8352400B2 (en) | 1991-12-23 | 2013-01-08 | Hoffberg Steven M | Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore |
US10361802B1 (en) | 1999-02-01 | 2019-07-23 | Blanding Hovenweep, Llc | Adaptive pattern recognition based control system and method |
US7904187B2 (en) | 1999-02-01 | 2011-03-08 | Hoffberg Steven M | Internet appliance system and method |
US6996720B1 (en) * | 1999-12-17 | 2006-02-07 | Microsoft Corporation | System and method for accessing protected content in a rights-management architecture |
US7047411B1 (en) * | 1999-12-17 | 2006-05-16 | Microsoft Corporation | Server for an electronic distribution system and method of operating same |
US6832230B1 (en) * | 1999-12-22 | 2004-12-14 | Nokia Corporation | Apparatus and associated method for downloading an application with a variable lifetime to a mobile terminal |
US20010034758A1 (en) * | 2000-02-24 | 2001-10-25 | Dan Kikinis | Virtual private network (VPN) for servicing home gateway system through external disk management |
US7603319B2 (en) * | 2000-08-28 | 2009-10-13 | Contentguard Holdings, Inc. | Method and apparatus for preserving customer identity in on-line transactions |
US7072908B2 (en) * | 2001-03-26 | 2006-07-04 | Microsoft Corporation | Methods and systems for synchronizing visualizations with audio streams |
EP1249964A3 (en) * | 2001-04-12 | 2004-01-07 | Matsushita Electric Industrial Co., Ltd. | Reception terminal, key management apparatus, and key updating method for public key cryptosystem |
US20060167985A1 (en) * | 2001-04-26 | 2006-07-27 | Albanese Michael J | Network-distributed data routing |
US20030023862A1 (en) * | 2001-04-26 | 2003-01-30 | Fujitsu Limited | Content distribution system |
US8180904B1 (en) | 2001-04-26 | 2012-05-15 | Nokia Corporation | Data routing and management with routing path selectivity |
US9032097B2 (en) * | 2001-04-26 | 2015-05-12 | Nokia Corporation | Data communication with remote network node |
US8990334B2 (en) * | 2001-04-26 | 2015-03-24 | Nokia Corporation | Rule-based caching for packet-based data transfer |
US9143545B1 (en) | 2001-04-26 | 2015-09-22 | Nokia Corporation | Device classification for media delivery |
US8275716B2 (en) | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Method and system for subscription digital rights management |
US6876984B2 (en) * | 2001-05-31 | 2005-04-05 | Contentguard Holdings, Inc. | Method and apparatus for establishing usage rights for digital content to be created in the future |
AU2002317062A1 (en) | 2001-06-12 | 2002-12-23 | Research In Motion Limited | Method for processing encoded messages for exchange with a mobile data communication device |
US7254712B2 (en) * | 2001-06-12 | 2007-08-07 | Research In Motion Limited | System and method for compressing secure e-mail for exchange with a mobile data communication device |
CA2450584C (en) * | 2001-06-12 | 2011-01-04 | Research In Motion Limited | Certificate management and transfer system and method |
BRPI0211093B1 (en) | 2001-07-10 | 2016-09-06 | Blackberry Ltd | system and method for caching secure message key on a mobile communication device |
ATE413046T1 (en) | 2001-08-06 | 2008-11-15 | Research In Motion Ltd | METHOD AND DEVICE FOR PROCESSING CODED MESSAGES |
US7313828B2 (en) * | 2001-09-04 | 2007-12-25 | Nokia Corporation | Method and apparatus for protecting software against unauthorized use |
US7320075B2 (en) * | 2001-11-20 | 2008-01-15 | Safenet, Inc. | Software protection method utilizing hidden application code in a protection dynamic link library object |
US6785381B2 (en) * | 2001-11-27 | 2004-08-31 | Siemens Information And Communication Networks, Inc. | Telephone having improved hands free operation audio quality and method of operation thereof |
US20060195402A1 (en) * | 2002-02-27 | 2006-08-31 | Imagineer Software, Inc. | Secure data transmission using undiscoverable or black data |
US20030186699A1 (en) * | 2002-03-28 | 2003-10-02 | Arlene Havlark | Wireless telecommunications location based services scheme selection |
US7426380B2 (en) | 2002-03-28 | 2008-09-16 | Telecommunication Systems, Inc. | Location derived presence information |
US9154906B2 (en) | 2002-03-28 | 2015-10-06 | Telecommunication Systems, Inc. | Area watcher for wireless network |
US20040203597A1 (en) * | 2002-03-28 | 2004-10-14 | Pitt Lance Douglas | Mobile subscriber privacy evaluation using solicited vs. unsolicited differentiation |
US8290505B2 (en) | 2006-08-29 | 2012-10-16 | Telecommunications Systems, Inc. | Consequential location derived information |
US8918073B2 (en) * | 2002-03-28 | 2014-12-23 | Telecommunication Systems, Inc. | Wireless telecommunications location based services scheme selection |
US8027697B2 (en) | 2007-09-28 | 2011-09-27 | Telecommunication Systems, Inc. | Public safety access point (PSAP) selection for E911 wireless callers in a GSM type system |
US8126889B2 (en) * | 2002-03-28 | 2012-02-28 | Telecommunication Systems, Inc. | Location fidelity adjustment based on mobile subscriber privacy profile |
US7890771B2 (en) | 2002-04-17 | 2011-02-15 | Microsoft Corporation | Saving and retrieving data based on public key encryption |
US8666397B2 (en) | 2002-12-13 | 2014-03-04 | Telecommunication Systems, Inc. | Area event handling when current network does not cover target area |
US20070238455A1 (en) * | 2006-04-07 | 2007-10-11 | Yinjun Zhu | Mobile based area event handling when currently visited network doe not cover area |
US8019989B2 (en) * | 2003-06-06 | 2011-09-13 | Hewlett-Packard Development Company, L.P. | Public-key infrastructure in network management |
JP4424465B2 (en) * | 2003-06-09 | 2010-03-03 | ソニー株式会社 | Information device, information server, and information processing program |
JP4588991B2 (en) * | 2003-07-30 | 2010-12-01 | 美恵子 露崎 | File management system |
JP4250510B2 (en) * | 2003-11-26 | 2009-04-08 | 株式会社東芝 | Content distribution service providing system, content distribution apparatus and user terminal apparatus |
US7424293B2 (en) | 2003-12-02 | 2008-09-09 | Telecommunication Systems, Inc. | User plane location based service using message tunneling to support roaming |
US7519274B2 (en) | 2003-12-08 | 2009-04-14 | Divx, Inc. | File format for multiple track digital data |
US8472792B2 (en) | 2003-12-08 | 2013-06-25 | Divx, Llc | Multimedia distribution system |
US20050132207A1 (en) * | 2003-12-10 | 2005-06-16 | Magda Mourad | System and method for authoring learning material using digital ownership rights |
US9286445B2 (en) * | 2003-12-18 | 2016-03-15 | Red Hat, Inc. | Rights management system |
US7260186B2 (en) | 2004-03-23 | 2007-08-21 | Telecommunication Systems, Inc. | Solutions for voice over internet protocol (VoIP) 911 location services |
US20080126535A1 (en) | 2006-11-28 | 2008-05-29 | Yinjun Zhu | User plane location services over session initiation protocol (SIP) |
US20080090546A1 (en) | 2006-10-17 | 2008-04-17 | Richard Dickinson | Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging |
US20050144408A1 (en) * | 2003-12-24 | 2005-06-30 | Kenji Ejima | Memory protection unit, memory protection method, and computer-readable record medium in which memory protection program is recorded |
US7617531B1 (en) * | 2004-02-18 | 2009-11-10 | Citrix Systems, Inc. | Inferencing data types of message components |
US7664966B2 (en) * | 2004-05-17 | 2010-02-16 | Microsoft Corporation | Secure storage on recordable medium in a content protection system |
EP1621958A3 (en) * | 2004-07-19 | 2006-05-17 | SONY DEUTSCHLAND GmbH | Method for providing protected audio/video content |
US20060036849A1 (en) * | 2004-08-09 | 2006-02-16 | Research In Motion Limited | System and method for certificate searching and retrieval |
US9094429B2 (en) | 2004-08-10 | 2015-07-28 | Blackberry Limited | Server verification of secure electronic messages |
US7631183B2 (en) | 2004-09-01 | 2009-12-08 | Research In Motion Limited | System and method for retrieving related certificates |
US7549043B2 (en) | 2004-09-01 | 2009-06-16 | Research In Motion Limited | Providing certificate matching in a system and method for searching and retrieving certificates |
US7640428B2 (en) | 2004-09-02 | 2009-12-29 | Research In Motion Limited | System and method for searching and retrieving certificates |
US7629926B2 (en) * | 2004-10-15 | 2009-12-08 | Telecommunication Systems, Inc. | Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas |
US7113128B1 (en) * | 2004-10-15 | 2006-09-26 | Telecommunication Systems, Inc. | Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas |
US6985105B1 (en) * | 2004-10-15 | 2006-01-10 | Telecommunication Systems, Inc. | Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations |
US9400875B1 (en) * | 2005-02-11 | 2016-07-26 | Nokia Corporation | Content routing with rights management |
US8245280B2 (en) * | 2005-02-11 | 2012-08-14 | Samsung Electronics Co., Ltd. | System and method for user access control to content in a network |
US7849100B2 (en) * | 2005-03-01 | 2010-12-07 | Microsoft Corporation | Method and computer-readable medium for generating usage rights for an item based upon access rights |
US7353034B2 (en) | 2005-04-04 | 2008-04-01 | X One, Inc. | Location sharing and tracking using mobile phones or other wireless devices |
US7631013B2 (en) * | 2005-04-06 | 2009-12-08 | Sierra Interactive Systems, Inc. | System and method for publishing, distributing, and reading electronic interactive books |
JP2007004605A (en) * | 2005-06-24 | 2007-01-11 | Brother Ind Ltd | Communication system, client, server, and program |
KR100648926B1 (en) * | 2005-07-11 | 2006-11-27 | 삼성전자주식회사 | Image forming apparatus having function of embedding user identification information into scan data and method thereof |
US8660573B2 (en) * | 2005-07-19 | 2014-02-25 | Telecommunications Systems, Inc. | Location service requests throttling |
WO2007017882A1 (en) * | 2005-08-05 | 2007-02-15 | Hewlett-Packard Development Company L.P. | System, method and apparatus for cryptography key management for mobile devices |
US20070049288A1 (en) * | 2005-08-24 | 2007-03-01 | Lamprecht Leslie J | Creating optimum temporal location trigger for multiple requests |
US9282451B2 (en) | 2005-09-26 | 2016-03-08 | Telecommunication Systems, Inc. | Automatic location identification (ALI) service requests steering, connection sharing and protocol translation |
GB2430771A (en) * | 2005-09-30 | 2007-04-04 | Motorola Inc | Content access rights management |
US7825780B2 (en) * | 2005-10-05 | 2010-11-02 | Telecommunication Systems, Inc. | Cellular augmented vehicle alarm notification together with location services for position of an alarming vehicle |
US20070075848A1 (en) * | 2005-10-05 | 2007-04-05 | Pitt Lance D | Cellular augmented vehicle alarm |
US8467320B2 (en) | 2005-10-06 | 2013-06-18 | Telecommunication Systems, Inc. | Voice over internet protocol (VoIP) multi-user conferencing |
US7907551B2 (en) * | 2005-10-06 | 2011-03-15 | Telecommunication Systems, Inc. | Voice over internet protocol (VoIP) location based 911 conferencing |
US9116891B2 (en) * | 2005-12-16 | 2015-08-25 | Bby Solutions, Inc. | Media content router |
US20070191975A1 (en) * | 2006-01-20 | 2007-08-16 | Sanmina-Sci, A Delaware Corporation | Secure content delivery device |
US8166501B2 (en) * | 2006-01-26 | 2012-04-24 | Sony Corporation | Scheme for use with client device interface in system for providing dailies and edited video to users |
US9196304B2 (en) * | 2006-01-26 | 2015-11-24 | Sony Corporation | Method and system for providing dailies and edited video to users |
JP2009526322A (en) * | 2006-02-08 | 2009-07-16 | イマジニア・ソフトウェア,インコーポレーテッド | Secure digital content management using change identifiers |
US8150363B2 (en) | 2006-02-16 | 2012-04-03 | Telecommunication Systems, Inc. | Enhanced E911 network access for call centers |
US20070198428A1 (en) * | 2006-02-22 | 2007-08-23 | Microsoft Corporation | Purchasing of computer service access licenses |
US20070198427A1 (en) * | 2006-02-22 | 2007-08-23 | Microsoft Corporation | Computer service licensing management |
US7853945B2 (en) * | 2006-02-22 | 2010-12-14 | Michael Kramer | Integrated computer server imaging |
US8059789B2 (en) * | 2006-02-24 | 2011-11-15 | Telecommunication Systems, Inc. | Automatic location identification (ALI) emergency services pseudo key (ESPK) |
US9167553B2 (en) | 2006-03-01 | 2015-10-20 | Telecommunication Systems, Inc. | GeoNexus proximity detector network |
US7471236B1 (en) * | 2006-03-01 | 2008-12-30 | Telecommunication Systems, Inc. | Cellular augmented radar/laser detector |
US7899450B2 (en) * | 2006-03-01 | 2011-03-01 | Telecommunication Systems, Inc. | Cellular augmented radar/laser detection using local mobile network within cellular network |
US8452961B2 (en) * | 2006-03-07 | 2013-05-28 | Samsung Electronics Co., Ltd. | Method and system for authentication between electronic devices with minimal user intervention |
JP5200204B2 (en) | 2006-03-14 | 2013-06-05 | ディブエックス リミテッド ライアビリティー カンパニー | A federated digital rights management mechanism including a trusted system |
CN100454921C (en) | 2006-03-29 | 2009-01-21 | 华为技术有限公司 | Digital copyright protecting method and system |
US7818395B2 (en) * | 2006-10-13 | 2010-10-19 | Ceelox, Inc. | Method and apparatus for interfacing with a restricted access computer system |
US8208605B2 (en) | 2006-05-04 | 2012-06-26 | Telecommunication Systems, Inc. | Extended efficient usage of emergency services keys |
US20070269044A1 (en) * | 2006-05-16 | 2007-11-22 | Bruestle Michael A | Digital library system with rights-managed access |
US7827275B2 (en) * | 2006-06-08 | 2010-11-02 | Samsung Electronics Co., Ltd. | Method and system for remotely accessing devices in a network |
US20070288487A1 (en) * | 2006-06-08 | 2007-12-13 | Samsung Electronics Co., Ltd. | Method and system for access control to consumer electronics devices in a network |
US7814161B2 (en) | 2006-06-23 | 2010-10-12 | Research In Motion Limited | System and method for handling electronic mail mismatches |
US20080071617A1 (en) * | 2006-06-29 | 2008-03-20 | Lance Ware | Apparatus and methods for validating media |
US20080040613A1 (en) * | 2006-08-14 | 2008-02-14 | David Carroll Challener | Apparatus, system, and method for secure password reset |
US7840490B1 (en) * | 2006-08-30 | 2010-11-23 | United Services Automobile Association (Usaa) | Comprehensive software licensing management system |
US20080267172A1 (en) * | 2006-09-26 | 2008-10-30 | Hines John G | Location object proxy broker |
US8296569B2 (en) * | 2006-10-09 | 2012-10-23 | Microsoft Corporation | Content protection interoperability infrastructure |
WO2008057477A2 (en) * | 2006-11-03 | 2008-05-15 | Telecommunication Systems, Inc. | Roaming gateway enabling location based services (lbs) roaming for user plane in cdma networks without requiring use of a mobile positioning center (mpc) |
US20080167018A1 (en) * | 2007-01-10 | 2008-07-10 | Arlene Havlark | Wireless telecommunications location based services scheme selection |
US8050386B2 (en) | 2007-02-12 | 2011-11-01 | Telecommunication Systems, Inc. | Mobile automatic location identification (ALI) for first responders |
WO2008116082A1 (en) * | 2007-03-21 | 2008-09-25 | Industrial Color, Inc. | Digital file management system with unstructured job uploads, dynamic roles assignment and user level image/data interchange, and file mapping for high resolution and other images |
US20080235262A1 (en) * | 2007-03-21 | 2008-09-25 | Holm Aaron H | Digital file management system with file mapping for high resolution and other images |
US8452967B2 (en) * | 2007-08-31 | 2013-05-28 | Microsoft Corporation | Using flash storage device to prevent unauthorized use of software |
WO2009038726A1 (en) | 2007-09-17 | 2009-03-26 | Telecommunication Systems, Inc. | Emergency 911 data messaging |
US8233768B2 (en) | 2007-11-16 | 2012-07-31 | Divx, Llc | Hierarchical and reduced index structures for multimedia files |
US8458099B2 (en) * | 2007-11-21 | 2013-06-04 | Licensestream, Inc. | System and method for online content licensing and distribution |
US7929530B2 (en) * | 2007-11-30 | 2011-04-19 | Telecommunication Systems, Inc. | Ancillary data support in session initiation protocol (SIP) messaging |
US9130963B2 (en) | 2011-04-06 | 2015-09-08 | Telecommunication Systems, Inc. | Ancillary data support in session initiation protocol (SIP) messaging |
US8997161B2 (en) | 2008-01-02 | 2015-03-31 | Sonic Ip, Inc. | Application enhancement tracks |
US20090189893A1 (en) | 2008-01-27 | 2009-07-30 | Petrov Julian | Methods and systems for computing a hash from a three dimensional data set loaded into a resource |
US20090210933A1 (en) * | 2008-02-15 | 2009-08-20 | Shear Jeffrey A | System and Method for Online Content Production |
GB2458568B (en) * | 2008-03-27 | 2012-09-19 | Covertix Ltd | System and method for dynamically enforcing security policies on electronic files |
US10089306B1 (en) | 2008-03-31 | 2018-10-02 | Amazon Technologies, Inc. | Dynamically populating electronic item |
TW200949541A (en) * | 2008-05-28 | 2009-12-01 | Ind Tech Res Inst | A browsing method for digital content of hierarchical image management and system therefore |
US8068587B2 (en) | 2008-08-22 | 2011-11-29 | Telecommunication Systems, Inc. | Nationwide table routing of voice over internet protocol (VOIP) emergency calls |
US8892630B1 (en) * | 2008-09-29 | 2014-11-18 | Amazon Technologies, Inc. | Facilitating discussion group formation and interaction |
US9268735B2 (en) * | 2008-09-30 | 2016-02-23 | Oracle America, Inc. | Loadable and modular conditional access application |
US8525681B2 (en) | 2008-10-14 | 2013-09-03 | Telecommunication Systems, Inc. | Location based proximity alert |
US8892128B2 (en) * | 2008-10-14 | 2014-11-18 | Telecommunication Systems, Inc. | Location based geo-reminders |
US8706685B1 (en) | 2008-10-29 | 2014-04-22 | Amazon Technologies, Inc. | Organizing collaborative annotations |
US9083600B1 (en) | 2008-10-29 | 2015-07-14 | Amazon Technologies, Inc. | Providing presence information within digital items |
MX2011007344A (en) | 2009-01-07 | 2012-02-28 | Divx Inc | Singular, collective and automated creation of a media guide for online content. |
US8904191B2 (en) * | 2009-01-21 | 2014-12-02 | Microsoft Corporation | Multiple content protection systems in a file |
US8819541B2 (en) * | 2009-02-13 | 2014-08-26 | Language Technologies, Inc. | System and method for converting the digital typesetting documents used in publishing to a device-specfic format for electronic publishing |
US9301191B2 (en) | 2013-09-20 | 2016-03-29 | Telecommunication Systems, Inc. | Quality of service to over the top applications used with VPN |
US8867485B2 (en) * | 2009-05-05 | 2014-10-21 | Telecommunication Systems, Inc. | Multiple location retrieval function (LRF) network having location continuity |
US20130132733A1 (en) * | 2009-05-26 | 2013-05-23 | Sunil C. Agrawal | System And Method For Digital Rights Management With System Individualization |
US8296423B2 (en) * | 2009-06-08 | 2012-10-23 | Sony Corporation | Intelligent routing |
US20110009086A1 (en) * | 2009-07-10 | 2011-01-13 | Todd Poremba | Text to 9-1-1 emergency communication |
AR078235A1 (en) * | 2009-08-13 | 2011-10-26 | Vago Andras | INTELLIGENT PERIPHERAL DEVICE AND SYSTEM FOR THE VERIFICATION OF INDIVIDUALS AND / OR DOCUMENTS THROUGH A MULTIFUNCTIONAL SAFE AUTHENTICATION SERVICE WITH A DATA STORAGE SERVICE |
CN102053926A (en) * | 2009-10-30 | 2011-05-11 | 鸿富锦精密工业(深圳)有限公司 | Storage device and data security control method thereof |
WO2011068668A1 (en) | 2009-12-04 | 2011-06-09 | Divx, Llc | Elementary bitstream cryptographic material transport systems and methods |
EP2348452B1 (en) | 2009-12-18 | 2014-07-02 | CompuGroup Medical AG | A computer implemented method for sending a message to a recipient user, receiving a message by a recipient user, a computer readable storage medium and a computer system |
EP2348447B1 (en) | 2009-12-18 | 2014-07-16 | CompuGroup Medical AG | A computer implemented method for generating a set of identifiers from a private key, computer implemented method and computing device |
EP2348449A3 (en) | 2009-12-18 | 2013-07-10 | CompuGroup Medical AG | A computer implemented method for performing cloud computing on data being stored pseudonymously in a database |
US20110153619A1 (en) * | 2009-12-22 | 2011-06-23 | International Business Machines Corporation | Personalized content links |
US20110149953A1 (en) * | 2009-12-23 | 2011-06-23 | William Helgeson | Tracking results of a v2 query in voice over internet (VoIP) emergency call systems |
TWI425455B (en) * | 2009-12-25 | 2014-02-01 | Inventec Appliances Corp | A method for communicating based on electronic book device and the system thereof |
CN102110200A (en) * | 2009-12-25 | 2011-06-29 | 凹凸电子(武汉)有限公司 | Authentication method capable of being executed by computer |
EP2365456B1 (en) | 2010-03-11 | 2016-07-20 | CompuGroup Medical SE | Data structure, method and system for predicting medical conditions |
US9501582B2 (en) * | 2010-05-10 | 2016-11-22 | Amazon Technologies, Inc. | Providing text content embedded with protected multimedia content |
US8336664B2 (en) | 2010-07-09 | 2012-12-25 | Telecommunication Systems, Inc. | Telematics basic mobile device safety interlock |
US8315599B2 (en) | 2010-07-09 | 2012-11-20 | Telecommunication Systems, Inc. | Location privacy selector |
US8613061B2 (en) | 2010-09-01 | 2013-12-17 | Blackberry Limited | Methods and apparatus to implement electronic book viewers |
US8984293B2 (en) | 2010-11-19 | 2015-03-17 | Microsoft Corporation | Secure software product identifier for product validation and activation |
US8775797B2 (en) | 2010-11-19 | 2014-07-08 | Microsoft Corporation | Reliable software product validation and activation with redundant security |
US8683579B2 (en) | 2010-12-14 | 2014-03-25 | Microsoft Corporation | Software activation using digital licenses |
US8942743B2 (en) | 2010-12-17 | 2015-01-27 | Telecommunication Systems, Inc. | iALERT enhanced alert manager |
US8688087B2 (en) | 2010-12-17 | 2014-04-01 | Telecommunication Systems, Inc. | N-dimensional affinity confluencer |
US9247312B2 (en) | 2011-01-05 | 2016-01-26 | Sonic Ip, Inc. | Systems and methods for encoding source media in matroska container files for adaptive bitrate streaming using hypertext transfer protocol |
WO2012141762A1 (en) | 2011-02-25 | 2012-10-18 | Telecommunication Systems, Inc. | Mobile internet protocol (ip) location |
US9684635B2 (en) * | 2011-03-21 | 2017-06-20 | Adobe Systems Incorporated | Packaging, distributing, presenting, and using multi-asset electronic content |
US9251130B1 (en) | 2011-03-31 | 2016-02-02 | Amazon Technologies, Inc. | Tagging annotations of electronic books |
US20120259720A1 (en) * | 2011-04-06 | 2012-10-11 | Ebay Inc. | Method and system to confirm ownership of digital goods |
US9646292B2 (en) * | 2011-08-24 | 2017-05-09 | Follett Corporation | Method and system for distributing digital media content |
US8818171B2 (en) | 2011-08-30 | 2014-08-26 | Kourosh Soroushian | Systems and methods for encoding alternative streams of video for playback on playback devices having predetermined display aspect ratios and network connection maximum data rates |
US9467708B2 (en) | 2011-08-30 | 2016-10-11 | Sonic Ip, Inc. | Selection of resolutions for seamless resolution switching of multimedia content |
KR101928910B1 (en) | 2011-08-30 | 2018-12-14 | 쏘닉 아이피, 아이엔씨. | Systems and methods for encoding and streaming video encoded using a plurality of maximum bitrate levels |
US8964977B2 (en) * | 2011-09-01 | 2015-02-24 | Sonic Ip, Inc. | Systems and methods for saving encoded media streamed using adaptive bitrate streaming |
US8909922B2 (en) | 2011-09-01 | 2014-12-09 | Sonic Ip, Inc. | Systems and methods for playing back alternative streams of protected content protected using common cryptographic information |
US8649806B2 (en) | 2011-09-02 | 2014-02-11 | Telecommunication Systems, Inc. | Aggregate location dynometer (ALD) |
US9479344B2 (en) | 2011-09-16 | 2016-10-25 | Telecommunication Systems, Inc. | Anonymous voice conversation |
US8831556B2 (en) | 2011-09-30 | 2014-09-09 | Telecommunication Systems, Inc. | Unique global identifier header for minimizing prank emergency 911 calls |
US9264537B2 (en) | 2011-12-05 | 2016-02-16 | Telecommunication Systems, Inc. | Special emergency call treatment based on the caller |
US9313637B2 (en) | 2011-12-05 | 2016-04-12 | Telecommunication Systems, Inc. | Wireless emergency caller profile data delivery over a legacy interface |
US8984591B2 (en) | 2011-12-16 | 2015-03-17 | Telecommunications Systems, Inc. | Authentication via motion of wireless device movement |
US8918908B2 (en) | 2012-01-06 | 2014-12-23 | Sonic Ip, Inc. | Systems and methods for accessing digital content using electronic tickets and ticket tokens |
US9384339B2 (en) | 2012-01-13 | 2016-07-05 | Telecommunication Systems, Inc. | Authenticating cloud computing enabling secure services |
US9741061B2 (en) | 2012-03-01 | 2017-08-22 | Sarah Nash Brechner | System and method for personal customization of digital content |
US8688174B2 (en) | 2012-03-13 | 2014-04-01 | Telecommunication Systems, Inc. | Integrated, detachable ear bud device for a wireless phone |
US9307372B2 (en) | 2012-03-26 | 2016-04-05 | Telecommunication Systems, Inc. | No responders online |
US9544260B2 (en) | 2012-03-26 | 2017-01-10 | Telecommunication Systems, Inc. | Rapid assignment dynamic ownership queue |
US9338153B2 (en) | 2012-04-11 | 2016-05-10 | Telecommunication Systems, Inc. | Secure distribution of non-privileged authentication credentials |
JP5137046B1 (en) * | 2012-05-31 | 2013-02-06 | 株式会社イースティル | Series data protection method and series data protection program |
US9197685B2 (en) | 2012-06-28 | 2015-11-24 | Sonic Ip, Inc. | Systems and methods for fast video startup using trick play streams |
US9143812B2 (en) | 2012-06-29 | 2015-09-22 | Sonic Ip, Inc. | Adaptive streaming of multimedia |
US10452715B2 (en) | 2012-06-30 | 2019-10-22 | Divx, Llc | Systems and methods for compressing geotagged video |
WO2014015110A1 (en) | 2012-07-18 | 2014-01-23 | Verimatrix, Inc. | Systems and methods for rapid content switching to provide a linear tv experience using streaming content distribution |
US9804668B2 (en) | 2012-07-18 | 2017-10-31 | Verimatrix, Inc. | Systems and methods for rapid content switching to provide a linear TV experience using streaming content distribution |
US9313638B2 (en) | 2012-08-15 | 2016-04-12 | Telecommunication Systems, Inc. | Device independent caller data access for emergency calls |
US9208346B2 (en) | 2012-09-05 | 2015-12-08 | Telecommunication Systems, Inc. | Persona-notitia intellection codifier |
US9529982B2 (en) * | 2012-09-07 | 2016-12-27 | Samsung Electronics Co., Ltd. | Method and apparatus to manage user account of device |
US8914836B2 (en) | 2012-09-28 | 2014-12-16 | Sonic Ip, Inc. | Systems, methods, and computer program products for load adaptive streaming |
US8997254B2 (en) | 2012-09-28 | 2015-03-31 | Sonic Ip, Inc. | Systems and methods for fast startup streaming of encrypted multimedia content |
US20140115056A1 (en) * | 2012-10-22 | 2014-04-24 | Apple Inc. | Book thinning |
US9456301B2 (en) | 2012-12-11 | 2016-09-27 | Telecommunication Systems, Inc. | Efficient prisoner tracking |
US9191457B2 (en) | 2012-12-31 | 2015-11-17 | Sonic Ip, Inc. | Systems, methods, and media for controlling delivery of content |
US9313510B2 (en) | 2012-12-31 | 2016-04-12 | Sonic Ip, Inc. | Use of objective quality measures of streamed content to reduce streaming bandwidth |
US9264475B2 (en) | 2012-12-31 | 2016-02-16 | Sonic Ip, Inc. | Use of objective quality measures of streamed content to reduce streaming bandwidth |
US20140244374A1 (en) * | 2013-02-28 | 2014-08-28 | Ncr Corporation | Techniques for voucher or rebate redemption |
US9906785B2 (en) | 2013-03-15 | 2018-02-27 | Sonic Ip, Inc. | Systems, methods, and media for transcoding video data according to encoding parameters indicated by received metadata |
US10397292B2 (en) | 2013-03-15 | 2019-08-27 | Divx, Llc | Systems, methods, and media for delivery of content |
US8983047B2 (en) | 2013-03-20 | 2015-03-17 | Telecommunication Systems, Inc. | Index of suspicion determination for communications request |
US9344517B2 (en) | 2013-03-28 | 2016-05-17 | Sonic Ip, Inc. | Downloading and adaptive streaming of multimedia content to a device with cache assist |
US9094737B2 (en) | 2013-05-30 | 2015-07-28 | Sonic Ip, Inc. | Network video streaming with trick play based on separate trick play files |
US9247317B2 (en) | 2013-05-30 | 2016-01-26 | Sonic Ip, Inc. | Content streaming with client device trick play index |
US9967305B2 (en) | 2013-06-28 | 2018-05-08 | Divx, Llc | Systems, methods, and media for streaming media content |
US9408034B2 (en) | 2013-09-09 | 2016-08-02 | Telecommunication Systems, Inc. | Extended area event for network based proximity discovery |
US9516104B2 (en) | 2013-09-11 | 2016-12-06 | Telecommunication Systems, Inc. | Intelligent load balancer enhanced routing |
US9479897B2 (en) | 2013-10-03 | 2016-10-25 | Telecommunication Systems, Inc. | SUPL-WiFi access point controller location based services for WiFi enabled mobile devices |
US9343112B2 (en) | 2013-10-31 | 2016-05-17 | Sonic Ip, Inc. | Systems and methods for supplementing content from a server |
US20150134302A1 (en) | 2013-11-14 | 2015-05-14 | Jatin Chhugani | 3-dimensional digital garment creation from planar garment photographs |
CN104639592B (en) * | 2013-11-15 | 2018-09-28 | 华为技术有限公司 | Information synchronization method and system and cloud storage gateway between cloud storage gateway |
WO2015079004A1 (en) | 2013-11-29 | 2015-06-04 | Koninklijke Philips N.V. | Method and apparatus for supporting verification of a contract |
US9866534B2 (en) | 2013-12-06 | 2018-01-09 | Sony Corporation | Computer ecosystem providing privacy and tracking in sharing user-generated content |
US9152806B2 (en) | 2013-12-06 | 2015-10-06 | Sony Corporation | Computer ecosystem providing privacy and tracking in sharing user-generated content by encrypting the UGC at the imaging source |
US10366439B2 (en) | 2013-12-27 | 2019-07-30 | Ebay Inc. | Regional item reccomendations |
US20150205938A1 (en) * | 2014-01-18 | 2015-07-23 | Nuri Ruhi Dagdeviren | System and method for copyright rule implementation |
IN2014CH01484A (en) | 2014-03-20 | 2015-09-25 | Infosys Ltd | |
US9866878B2 (en) | 2014-04-05 | 2018-01-09 | Sonic Ip, Inc. | Systems and methods for encoding and playing back video at different frame rates using enhancement layers |
US9633228B1 (en) * | 2014-05-21 | 2017-04-25 | Haim Maimon | Verifiable media system and method |
US9652212B2 (en) | 2014-09-24 | 2017-05-16 | Oracle International Corporation | Managing change events for devices in an enterprise system |
US20160092956A1 (en) | 2014-09-30 | 2016-03-31 | Jonathan Su | Garment size mapping |
GB201418815D0 (en) * | 2014-10-22 | 2014-12-03 | Irdeto Bv | Providing access to content |
CN117259959A (en) * | 2015-02-12 | 2023-12-22 | 格罗弗治公司 | Visual preview for laser machining |
US10075292B2 (en) | 2016-03-30 | 2018-09-11 | Divx, Llc | Systems and methods for quick start-up of playback |
US10540511B2 (en) * | 2016-03-31 | 2020-01-21 | Intralinks, Inc. | Information rights management offline file access facility |
US10148989B2 (en) | 2016-06-15 | 2018-12-04 | Divx, Llc | Systems and methods for encoding video content |
US10498795B2 (en) | 2017-02-17 | 2019-12-03 | Divx, Llc | Systems and methods for adaptive switching between multiple content delivery networks during adaptive bitrate streaming |
US10606888B2 (en) | 2018-06-05 | 2020-03-31 | Eight Plus Ventures, LLC | Image inventory production |
CN112257104A (en) * | 2020-10-10 | 2021-01-22 | 北京字跳网络技术有限公司 | Authority control method and device and electronic equipment |
US11882215B2 (en) * | 2021-05-21 | 2024-01-23 | Zoom Video Communications, Inc. | Handling joining and leaving of participants in videoconferencing with end-to-end encryption |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996024092A2 (en) * | 1995-02-01 | 1996-08-08 | Greg Benson | A method and system for managing a data object so as to comply with predetermined conditions for usage |
EP0778512A2 (en) * | 1995-12-08 | 1997-06-11 | Sun Microsystems, Inc. | System and method for managing try-and-buy usage of application programs |
EP0843449A2 (en) * | 1996-11-08 | 1998-05-20 | Sunhawk Corporation, Inc. | Encryption system with transaction coded decryption key |
WO1999055055A1 (en) * | 1998-04-17 | 1999-10-28 | Iomega Corporation | System for keying protected electronic data to particular media to prevent unauthorized copying |
US5999622A (en) * | 1995-11-22 | 1999-12-07 | Microsoft Corporation | Method and apparatus for protecting widely distributed digital information |
Family Cites Families (93)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5742677A (en) | 1995-04-03 | 1998-04-21 | Scientific-Atlanta, Inc. | Information terminal having reconfigurable memory |
US4405829A (en) | 1977-12-14 | 1983-09-20 | Massachusetts Institute Of Technology | Cryptographic communications system and method |
CA1243993A (en) * | 1983-07-04 | 1988-11-01 | Westland Plc | Helicopter rotor blade |
US4688169A (en) | 1985-05-30 | 1987-08-18 | Joshi Bhagirath S | Computer software security system |
US5050213A (en) | 1986-10-14 | 1991-09-17 | Electronic Publishing Resources, Inc. | Database usage metering and protection system and method |
US4977594A (en) | 1986-10-14 | 1990-12-11 | Electronic Publishing Resources, Inc. | Database usage metering and protection system and method |
US4827508A (en) | 1986-10-14 | 1989-05-02 | Personal Library Software, Inc. | Database usage metering and protection system and method |
US4924378A (en) | 1988-06-13 | 1990-05-08 | Prime Computer, Inc. | License mangagement system and license storage key |
US5191573A (en) | 1988-06-13 | 1993-03-02 | Hair Arthur R | Method for transmitting a desired digital video or audio signal |
JPH0220188A (en) * | 1988-07-07 | 1990-01-23 | Nec Corp | Pay television receiver |
US5222134A (en) | 1990-11-07 | 1993-06-22 | Tau Systems Corporation | Secure system for activating personal computer software at remote locations |
US5940504A (en) | 1991-07-01 | 1999-08-17 | Infologic Software, Inc. | Licensing management system and method in which datagrams including an address of a licensee and indicative of use of a licensed product are sent from the licensee's site |
US5734823A (en) | 1991-11-04 | 1998-03-31 | Microtome, Inc. | Systems and apparatus for electronic communication and storage of information |
WO1993009490A1 (en) | 1991-11-04 | 1993-05-13 | Vpr Systems Ltd. | Lap-top computer for retrieving and displaying text and graphic information encoded on personal library cd-rom |
US5359659A (en) | 1992-06-19 | 1994-10-25 | Doren Rosenthal | Method for securing software against corruption by computer viruses |
US5509070A (en) | 1992-12-15 | 1996-04-16 | Softlock Services Inc. | Method for encouraging purchase of executable and non-executable software |
US5666411A (en) | 1994-01-13 | 1997-09-09 | Mccarty; Johnnie C. | System for computer software protection |
JPH07212355A (en) * | 1994-01-20 | 1995-08-11 | Sony Corp | Transmission data receiver |
US5724425A (en) * | 1994-06-10 | 1998-03-03 | Sun Microsystems, Inc. | Method and apparatus for enhancing software security and distributing software |
JPH0823315A (en) | 1994-07-08 | 1996-01-23 | Sony Corp | Information presetting system |
JPH08125651A (en) | 1994-10-28 | 1996-05-17 | Hitachi Ltd | Signal processor |
US5625963A (en) * | 1994-11-01 | 1997-05-06 | American Sporting Goods Corp. | Sole construction for footwear |
US5634012A (en) | 1994-11-23 | 1997-05-27 | Xerox Corporation | System for controlling the distribution and use of digital works having a fee reporting mechanism |
US5715403A (en) | 1994-11-23 | 1998-02-03 | Xerox Corporation | System for controlling the distribution and use of digital works having attached usage rights where the usage rights are defined by a usage rights grammar |
US5638443A (en) | 1994-11-23 | 1997-06-10 | Xerox Corporation | System for controlling the distribution and use of composite digital works |
US5629980A (en) | 1994-11-23 | 1997-05-13 | Xerox Corporation | System for controlling the distribution and use of digital works |
US5654746A (en) | 1994-12-01 | 1997-08-05 | Scientific-Atlanta, Inc. | Secure authorization and control method and apparatus for a game delivery service |
JP3229152B2 (en) * | 1995-02-13 | 2001-11-12 | 周樹 是枝 | Information registration system and information registration method |
US5892900A (en) | 1996-08-30 | 1999-04-06 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US5943422A (en) | 1996-08-12 | 1999-08-24 | Intertrust Technologies Corp. | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
WO1996027155A2 (en) | 1995-02-13 | 1996-09-06 | Electronic Publishing Resources, Inc. | Systems and methods for secure transaction management and electronic rights protection |
US5530235A (en) | 1995-02-16 | 1996-06-25 | Xerox Corporation | Interactive contents revealing storage device |
US5883955A (en) | 1995-06-07 | 1999-03-16 | Digital River, Inc. | On-line try before you buy software distribution system |
CA2221506A1 (en) | 1995-06-07 | 1996-12-27 | Thomas Mark Levergood | Internet server access control and monitoring system |
US5708780A (en) | 1995-06-07 | 1998-01-13 | Open Market, Inc. | Internet server access control and monitoring systems |
US5625693A (en) | 1995-07-07 | 1997-04-29 | Thomson Consumer Electronics, Inc. | Apparatus and method for authenticating transmitting applications in an interactive TV system |
US5765152A (en) | 1995-10-13 | 1998-06-09 | Trustees Of Dartmouth College | System and method for managing copyrighted electronic media |
EP0880840A4 (en) * | 1996-01-11 | 2002-10-23 | Mrj Inc | System for controlling access and distribution of digital property |
US5862325A (en) | 1996-02-29 | 1999-01-19 | Intermind Corporation | Computer-based communication system and method using metadata defining a control structure |
KR19990014686A (en) * | 1996-03-08 | 1999-02-25 | 요트.게.아.롤페즈 | Multichannel magnetic head |
JP3486043B2 (en) | 1996-03-11 | 2004-01-13 | 株式会社東芝 | Operating method of software distribution system and software system |
US5961603A (en) | 1996-04-10 | 1999-10-05 | Worldgate Communications, Inc. | Access system and method for providing interactive access to an information source through a networked distribution system |
JPH10214233A (en) * | 1996-04-15 | 1998-08-11 | Toshiba Corp | Information processor, information processing system, method therefor, program storage device, method for judging key and device therefor |
US5864620A (en) | 1996-04-24 | 1999-01-26 | Cybersource Corporation | Method and system for controlling distribution of software in a multitiered distribution chain |
JPH09292988A (en) * | 1996-04-25 | 1997-11-11 | Brother Ind Ltd | Information recording medium and information recording medium supply system |
US5809145A (en) | 1996-06-28 | 1998-09-15 | Paradata Systems Inc. | System for distributing digital information |
US6067582A (en) | 1996-08-13 | 2000-05-23 | Angel Secure Networks, Inc. | System for installing information related to a software application to a remote computer over a network |
US6035403A (en) | 1996-09-11 | 2000-03-07 | Hush, Inc. | Biometric based method for software distribution |
US6023509A (en) | 1996-09-30 | 2000-02-08 | Intel Corporation | Digital signature purpose encoding |
US6021492A (en) | 1996-10-09 | 2000-02-01 | Hewlett-Packard Company | Software metering management of remote computing devices |
US6006332A (en) | 1996-10-21 | 1999-12-21 | Case Western Reserve University | Rights management system for digital media |
JPH10126406A (en) | 1996-10-23 | 1998-05-15 | Toyo Commun Equip Co Ltd | Data cipher system in network |
US6073124A (en) | 1997-01-29 | 2000-06-06 | Shopnow.Com Inc. | Method and system for securely incorporating electronic information into an online purchasing application |
US5920861A (en) | 1997-02-25 | 1999-07-06 | Intertrust Technologies Corp. | Techniques for defining using and manipulating rights management data structures |
WO1998047259A2 (en) | 1997-03-10 | 1998-10-22 | Fielder Guy L | File encryption method and system |
EP0970411B1 (en) | 1997-03-27 | 2002-05-15 | BRITISH TELECOMMUNICATIONS public limited company | Copy protection of data |
US6108420A (en) | 1997-04-10 | 2000-08-22 | Channelware Inc. | Method and system for networked installation of uniquely customized, authenticable, and traceable software application |
JP3792896B2 (en) | 1997-05-13 | 2006-07-05 | 株式会社東芝 | Information reproducing apparatus and information reproducing method |
CA2293650C (en) | 1997-06-09 | 2012-09-25 | Christian Sven Collberg | Obfuscation techniques for enhancing software security |
JP3758316B2 (en) | 1997-07-07 | 2006-03-22 | 富士ゼロックス株式会社 | Software license management apparatus and method |
US6038601A (en) | 1997-07-21 | 2000-03-14 | Tibco, Inc. | Method and apparatus for storing and delivering documents on the internet |
US5983273A (en) | 1997-09-16 | 1999-11-09 | Webtv Networks, Inc. | Method and apparatus for providing physical security for a user account and providing access to the user's environment and preferences |
JPH1196674A (en) * | 1997-09-22 | 1999-04-09 | Digital Vision Laboratories:Kk | Data recording device data reproducing device, and data recording medium |
US5991402A (en) | 1997-09-23 | 1999-11-23 | Aegisoft Corporation | Method and system of dynamic transformation of encrypted material |
JPH11112494A (en) | 1997-10-03 | 1999-04-23 | Mitsubishi Electric Corp | Client/server system |
US5970475A (en) | 1997-10-10 | 1999-10-19 | Intelisys Electronic Commerce, Llc | Electronic procurement system and method for trading partners |
WO1999026123A1 (en) | 1997-11-18 | 1999-05-27 | Christopher Benjamin Wakely | Improvements relating to software protection systems |
US5991399A (en) | 1997-12-18 | 1999-11-23 | Intel Corporation | Method for securely distributing a conditional use private key to a trusted entity on a remote system |
JPH11203205A (en) * | 1998-01-08 | 1999-07-30 | Fujitsu Ltd | Information storage system |
JPH11202765A (en) * | 1998-01-16 | 1999-07-30 | Mitsubishi Materials Corp | Ciphered information processor, ciphered information processing method and recording medium |
US7263497B1 (en) | 1998-02-06 | 2007-08-28 | Microsoft Corporation | Secure online music distribution system |
US6385596B1 (en) | 1998-02-06 | 2002-05-07 | Liquid Audio, Inc. | Secure online music distribution system |
US20010011238A1 (en) | 1998-03-04 | 2001-08-02 | Martin Forest Eberhard | Digital rights management system |
US6513117B2 (en) * | 1998-03-04 | 2003-01-28 | Gemstar Development Corporation | Certificate handling for digital rights management system |
JP3642946B2 (en) * | 1998-03-27 | 2005-04-27 | 富士写真フイルム株式会社 | Image data encryption output device, image reproduction device, and digital photo service system |
JP3994518B2 (en) | 1998-05-11 | 2007-10-24 | ソニー株式会社 | Data distribution device and terminal device for data distribution |
FI105738B (en) | 1998-05-29 | 2000-09-29 | Alma Media Oyj | Combining services in an Internet-type network |
US6298446B1 (en) | 1998-06-14 | 2001-10-02 | Alchemedia Ltd. | Method and system for copyright protection of digital images transmitted over networks |
US6226618B1 (en) | 1998-08-13 | 2001-05-01 | International Business Machines Corporation | Electronic content delivery system |
US6425017B1 (en) | 1998-08-17 | 2002-07-23 | Microsoft Corporation | Queued method invocations on distributed component applications |
EP1121779A4 (en) | 1998-10-07 | 2004-09-15 | Nuvomedia Inc | Certificate handling for digital rights management system |
US6331865B1 (en) | 1998-10-16 | 2001-12-18 | Softbook Press, Inc. | Method and apparatus for electronically distributing and viewing digital contents |
US6449645B1 (en) | 1999-01-19 | 2002-09-10 | Kenneth L. Nash | System for monitoring the association of digitized information having identification indicia with more than one of uniquely identified computers in a network for illegal use detection |
WO2000075760A1 (en) | 1999-06-07 | 2000-12-14 | Firepad, Inc. | Method and system for preventing the unauthorized use of software |
WO2001041437A2 (en) | 1999-12-03 | 2001-06-07 | Ourworld Live, Inc. | Consumer access systems and methods for providing same |
US7047411B1 (en) | 1999-12-17 | 2006-05-16 | Microsoft Corporation | Server for an electronic distribution system and method of operating same |
US6970849B1 (en) | 1999-12-17 | 2005-11-29 | Microsoft Corporation | Inter-server communication using request with encrypted parameter |
US6996720B1 (en) | 1999-12-17 | 2006-02-07 | Microsoft Corporation | System and method for accessing protected content in a rights-management architecture |
US6718361B1 (en) | 2000-04-07 | 2004-04-06 | Network Appliance Inc. | Method and apparatus for reliable and scalable distribution of data files in distributed networks |
WO2001080524A2 (en) | 2000-04-17 | 2001-10-25 | Circadence Corporation | Method and system for overcoming denial of service attacks |
US6606604B1 (en) | 2000-05-31 | 2003-08-12 | International Business Machines Corporation | Incremental updates of items and prices on a customer's computer to reduce download times for frequently purchased items in e-commerce transactions in a method, system and program |
US7158953B1 (en) | 2000-06-27 | 2007-01-02 | Microsoft Corporation | Method and system for limiting the use of user-specific software features |
US20020129261A1 (en) * | 2001-03-08 | 2002-09-12 | Cromer Daryl Carvis | Apparatus and method for encrypting and decrypting data recorded on portable cryptographic tokens |
-
2000
- 2000-06-27 US US09/604,946 patent/US6996720B1/en not_active Expired - Lifetime
- 2000-12-13 DE DE60038046T patent/DE60038046T2/en not_active Expired - Lifetime
- 2000-12-13 AT AT00992917T patent/ATE386290T1/en not_active IP Right Cessation
- 2000-12-13 ES ES04026830.2T patent/ES2593311T3/en not_active Expired - Lifetime
- 2000-12-13 JP JP2001547233A patent/JP4694077B2/en not_active Expired - Lifetime
- 2000-12-13 EP EP00992917A patent/EP1242858B1/en not_active Expired - Lifetime
- 2000-12-13 ES ES04026831.0T patent/ES2616250T3/en not_active Expired - Lifetime
- 2000-12-13 WO PCT/US2000/042781 patent/WO2001046783A2/en active IP Right Grant
- 2000-12-13 AU AU47175/01A patent/AU4717501A/en not_active Abandoned
-
2004
- 2004-09-17 US US10/943,413 patent/US7707643B2/en not_active Expired - Fee Related
-
2005
- 2005-04-14 US US11/107,660 patent/US7562395B2/en not_active Expired - Fee Related
-
2009
- 2009-06-17 US US12/486,057 patent/US8032943B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996024092A2 (en) * | 1995-02-01 | 1996-08-08 | Greg Benson | A method and system for managing a data object so as to comply with predetermined conditions for usage |
US5999622A (en) * | 1995-11-22 | 1999-12-07 | Microsoft Corporation | Method and apparatus for protecting widely distributed digital information |
EP0778512A2 (en) * | 1995-12-08 | 1997-06-11 | Sun Microsystems, Inc. | System and method for managing try-and-buy usage of application programs |
EP0843449A2 (en) * | 1996-11-08 | 1998-05-20 | Sunhawk Corporation, Inc. | Encryption system with transaction coded decryption key |
WO1999055055A1 (en) * | 1998-04-17 | 1999-10-28 | Iomega Corporation | System for keying protected electronic data to particular media to prevent unauthorized copying |
Non-Patent Citations (1)
Title |
---|
See also references of EP1242858A2 * |
Cited By (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2397673A (en) * | 2000-06-05 | 2004-07-28 | Sealedmedia Ltd | Digital rights management |
GB2397673B (en) * | 2000-06-05 | 2004-10-27 | Sealedmedia Ltd | Digital rights management |
US7257581B1 (en) | 2000-08-04 | 2007-08-14 | Guardian Networks, Llc | Storage, management and distribution of consumer information |
US9928508B2 (en) | 2000-08-04 | 2018-03-27 | Intellectual Ventures I Llc | Single sign-on for access to a central data repository |
US7016875B1 (en) | 2000-08-04 | 2006-03-21 | Enfotrust Networks, Inc. | Single sign-on for access to a central data repository |
US7016877B1 (en) | 2000-08-04 | 2006-03-21 | Enfotrust Networks, Inc. | Consumer-controlled limited and constrained access to a centrally stored information account |
US7467141B1 (en) | 2000-08-04 | 2008-12-16 | Grdn. Net Solutions, Llc | Branding and revenue sharing models for facilitating storage, management and distribution of consumer information |
US7487130B2 (en) | 2000-11-07 | 2009-02-03 | Grdn. Net Solutions, Llc | Consumer-controlled limited and constrained access to a centrally stored information account |
US7224805B2 (en) | 2001-07-06 | 2007-05-29 | Nokia Corporation | Consumption of content |
WO2003005174A1 (en) * | 2001-07-06 | 2003-01-16 | Nokia Corporation | Consumption of digital data content with digital rights management |
WO2003015416A1 (en) * | 2001-08-09 | 2003-02-20 | Matsushita Electric Industrial Co., Ltd. | Unified rights management for ipmp systemsystem |
WO2003027814A1 (en) * | 2001-09-05 | 2003-04-03 | Siemens Aktiengesellschaft | Method for transmitting copyright protected data in a communication system and corresponding communication transmitter device and communication receiver device |
EP1303097A3 (en) * | 2001-10-16 | 2005-11-30 | Microsoft Corporation | Virtual distributed security system |
WO2003050715A1 (en) * | 2001-12-10 | 2003-06-19 | Redbank Manor Pty Ltd | A system for secure distribution of electronic content and collection of fees |
WO2003058620A3 (en) * | 2001-12-31 | 2004-08-19 | Gen Instrument Corp | Methods and apparatus for digital rights management |
WO2003058620A2 (en) * | 2001-12-31 | 2003-07-17 | General Instrument Corporation | Methods and apparatus for digital rights management |
JP2011150717A (en) * | 2002-03-14 | 2011-08-04 | Contentguard Holdings Inc | Method and system for processing right expression |
JP2013157031A (en) * | 2002-03-14 | 2013-08-15 | Contentguard Holdings Inc | Method for processing rights expression |
US7891007B2 (en) | 2002-06-28 | 2011-02-15 | Microsoft Corporation | Systems and methods for issuing usage licenses for digital content and services |
US7631318B2 (en) | 2002-06-28 | 2009-12-08 | Microsoft Corporation | Secure server plug-in architecture for digital rights management systems |
US8856072B2 (en) | 2002-12-19 | 2014-10-07 | International Business Machines Corporation | Method for providing of content data to a client |
EP1573478A2 (en) * | 2002-12-19 | 2005-09-14 | International Business Machines Corporation | A method for distributing software licenses using xml documents |
US7761176B2 (en) | 2003-01-02 | 2010-07-20 | Catch Media, Inc. | Promotional portable music players |
US8644969B2 (en) | 2003-01-02 | 2014-02-04 | Catch Media, Inc. | Content provisioning and revenue disbursement |
US8918195B2 (en) | 2003-01-02 | 2014-12-23 | Catch Media, Inc. | Media management and tracking |
US8732086B2 (en) | 2003-01-02 | 2014-05-20 | Catch Media, Inc. | Method and system for managing rights for digital music |
US8996146B2 (en) | 2003-01-02 | 2015-03-31 | Catch Media, Inc. | Automatic digital music library builder |
US7756915B2 (en) | 2003-01-02 | 2010-07-13 | Catch Media | Automatic digital music library builder |
US7191193B2 (en) | 2003-01-02 | 2007-03-13 | Catch Media | Automatic digital music library builder |
US8666524B2 (en) | 2003-01-02 | 2014-03-04 | Catch Media, Inc. | Portable music player and transmitter |
US7827156B2 (en) | 2003-02-26 | 2010-11-02 | Microsoft Corporation | Issuing a digital rights management (DRM) license for content based on cross-forest directory information |
US8694352B1 (en) | 2003-04-22 | 2014-04-08 | Reflexis Systems, Inc. | System and method for providing handheld field force data gathering automation in a big box retail environment |
SG155065A1 (en) * | 2003-06-05 | 2009-09-30 | Intertrust Tech Corp | Interoperable systems and methods for peer-to-peer service orchestration |
GB2406922A (en) * | 2003-10-09 | 2005-04-13 | Vodafone Plc | System for authorising access to encoded content by an approved application and authorised user |
GB2406922B (en) * | 2003-10-09 | 2005-11-23 | Vodafone Plc | Data processing |
US9398020B2 (en) | 2004-06-16 | 2016-07-19 | Callahan Cellular L.L.C. | Graduated authentication in an identity management system |
US10298594B2 (en) | 2004-06-16 | 2019-05-21 | Callahan Cellular L.L.C. | Graduated authentication in an identity management system |
US10567391B2 (en) | 2004-06-16 | 2020-02-18 | Callahan Cellular L.L.C. | Graduated authentication in an identity management system |
US10904262B2 (en) | 2004-06-16 | 2021-01-26 | Callahan Cellular L.L.C. | Graduated authentication in an identity management system |
US11824869B2 (en) | 2004-06-16 | 2023-11-21 | Callahan Cellular L.L.C. | Graduated authentication in an identity management system |
US9245266B2 (en) | 2004-06-16 | 2016-01-26 | Callahan Cellular L.L.C. | Auditable privacy policies in a distributed hierarchical identity management system |
WO2006019608A1 (en) * | 2004-07-16 | 2006-02-23 | Catch Media, Inc. | Method and system for managing rights for digital music |
US8725646B2 (en) | 2005-04-15 | 2014-05-13 | Microsoft Corporation | Output protection levels |
US9436804B2 (en) | 2005-04-22 | 2016-09-06 | Microsoft Technology Licensing, Llc | Establishing a unique session key using a hardware functionality scan |
US8028039B1 (en) | 2005-12-23 | 2011-09-27 | Reflexis Systems, Inc. | System and method for communicating data between wireless mobile hand-held computer and a back-end computer system |
US8978096B2 (en) | 2005-12-30 | 2015-03-10 | Reflexis Systems Inc. | System and method for facilitating the transfer of information relating to quality of an organization |
US8474010B2 (en) | 2005-12-30 | 2013-06-25 | Reflexis Systems, Inc. | System and method for facilitating the transfer of information relating to quality of an organization |
US8135611B2 (en) | 2005-12-30 | 2012-03-13 | Reflexis Systems, Inc. | System and method for managing asset installation and evaluation |
US7957990B2 (en) | 2005-12-30 | 2011-06-07 | Reflexis Systems, Inc. | System and method for managing asset installation and evaluation |
US7861281B2 (en) | 2005-12-30 | 2010-12-28 | Reflexis Systems, Inc. | System and method for facilitating the transfer of information relating to quality of an organization |
US7708202B2 (en) | 2005-12-30 | 2010-05-04 | Reflexis Systems, Inc. | System and method for facilitating sales utilizing customer relationship management technology |
Also Published As
Publication number | Publication date |
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JP4694077B2 (en) | 2011-06-01 |
EP1242858A2 (en) | 2002-09-25 |
US7562395B2 (en) | 2009-07-14 |
EP1242858B1 (en) | 2008-02-13 |
US20050188228A1 (en) | 2005-08-25 |
ES2593311T3 (en) | 2016-12-07 |
DE60038046D1 (en) | 2008-03-27 |
ATE386290T1 (en) | 2008-03-15 |
ES2616250T3 (en) | 2017-06-12 |
US20090293116A1 (en) | 2009-11-26 |
DE60038046T2 (en) | 2009-04-30 |
US8032943B2 (en) | 2011-10-04 |
US7707643B2 (en) | 2010-04-27 |
WO2001046783A3 (en) | 2002-05-10 |
US20050108556A1 (en) | 2005-05-19 |
JP2003518282A (en) | 2003-06-03 |
US6996720B1 (en) | 2006-02-07 |
AU4717501A (en) | 2001-07-03 |
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