DE3803982A1 - Data carrier with duplication prevention - Google Patents
Data carrier with duplication preventionInfo
- Publication number
- DE3803982A1 DE3803982A1 DE19883803982 DE3803982A DE3803982A1 DE 3803982 A1 DE3803982 A1 DE 3803982A1 DE 19883803982 DE19883803982 DE 19883803982 DE 3803982 A DE3803982 A DE 3803982A DE 3803982 A1 DE3803982 A1 DE 3803982A1
- Authority
- DE
- Germany
- Prior art keywords
- information
- laser
- data
- recording
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002265 prevention Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000969 carrier Substances 0.000 claims 1
- 238000013500 data storage Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
- G11B23/281—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by changing the physical properties of the record carrier
- G11B23/282—Limited play
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
- G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2587—Laser Discs; Optical disc using analog recording
Abstract
Description
Die Erfindung betrifft eine Platte für die Aufzeichnung digita lischer Informationen sowie ein Verfahren für die Laserführung bei Aufzeichnung auf die Platte mittels eines Lasers.The invention relates to a plate for recording digita information and a procedure for laser guidance when recording on the disc by means of a laser.
Als Begründung dieser Erfindung ist ein Führungsverfahren bekannt, wobei ein Abtastlaser mit ein oder drei Laserstrahlen entlang einer Führungsrille auf einen Datenträger geführt wird.A guidance method is known as the justification for this invention, a scanning laser with one or three laser beams along one Guide groove is performed on a disk.
Als Nachteil eines solchen Führungsverfahren ist die Ungenauigkeit des Datenlasers mit den ihr verbundenen Abtastfehlern bekannt.The disadvantage of such a management procedure is the imprecision of the data laser with the associated scanning errors known.
Der Erfindung liegt die Aufgabe zugrunde:The invention is based on the object:
- - zuerst eine Platte zu schaffen, bei der man am Anfang des Laser prozesses schon fest vorprogrammieren kann, welches Datenstück das Lasergerät abspielen soll.- First create a plate where you start at the laser process can already pre-program which piece of data that Laser device should play.
- - zweitens eine Platte zu schaffen, bei der die Doublizierung und die Überspielmöglichkeit völlig ausgeschlossen ist.- second, to create a plate in which the duplication and the possibility of dubbing is completely excluded.
- - drittens ein Verfahren für eine Laserführung vorzustellen, mit Hilfe zweier Laserstrahlen.- third, to present a method for laser guidance with Using two laser beams.
Aufgrund dieser Aufgabe wird auch eine Maschine vorgeschlagen, die für die Herstellung der Musterplatte benutzt werden kann.Because of this task, a machine is also proposed can be used for the production of the sample plate.
Die Aufgabe wird dadurch gelöst, daß auf die Datenplatte 3 eine zusätzliche Stelle 6 bzw. 7 vorgesehen wird. Die Stelle, die da für benutzt wird, um eine zusätzliche Information aufzuzeichnen, die der Funktion des Abspielgerätes entspricht. The object is achieved in that an additional location 6 or 7 is provided on the data plate 3 . The location that is used to record additional information that corresponds to the function of the player.
Weitere Aufgaben werden dadurch gelöst, daß das Laserinstrument mit Hilfe zweier Laserstrahlen 22 + 23 entlang eines Kontrastes die Führungsrille 15 geführt wird. Und diese Führung wird mittels einer mechanischen bzw. anderer Kupplungen auf ein oder mehrere Aufzeichnungsinstrumente übertragen.Further objects are achieved in that the laser instrument is guided along a contrast with the guide groove 15 with the aid of two laser beams 22 + 23 . And this guidance is transferred to one or more recording instruments by means of a mechanical or other coupling.
Die erzielbaren Vorteile dieser Erfindung liegen insbesondere darin, daß eine wichtige und kostspielige Information, die auf einen Datenträger gespeichert ist, gegen Doublizierung und Verviel fältigung geschützt werden kann.The achievable advantages of this invention are in particular in that important and costly information that is on a data carrier is stored, against duplication and duplication can be protected.
Weitere Vorteile liegen insbesondere darin, daß der Führungsme chanismus dieser Aufzeichnungsmaschine deutlich einfacher und billiger wird, als bei den komplizierten, mechanischen Führungs systemen.Further advantages are in particular that the leadership mechanism of this recording machine is significantly simpler and becomes cheaper than the complicated mechanical guide systems.
Für die Beschreibung darliegender Erfindung sind folgende Zeich nungen dargestellt:The following signs are used to describe the present invention shown:
Es zeigtIt shows
Fig. 1 zeigt einen Datenträger 3 mit zusätzlicher Informations stelle 6 bzw. 7. Stelle 6 oder 7 können in einen beliebigen Kreis oder andere Formen vorgesehen werden. Fig. 1 shows a data carrier 3 with additional information point 6 and 7th Position 6 or 7 can be provided in any circle or other shapes.
Fig. 3 zeigt einen Datenträger 3, der in diesem Fall als Führungs schablone gefertigt ist. In diesem Datenträger ist ein Schnitt 13 zur Erklärung des Prinzips der Laserführung gezeichnet. Fig. 3 shows a data carrier 3 , which is made in this case as a guide template. A section 13 for explaining the principle of laser guidance is drawn in this data carrier.
Auf Fig. 4 ist der Schnitt 13 vergrößert, so daß man deutlich eine Führungsrille 14, 15 und 16 sehen kann, die auf einem negativen Feld 17, 18 aufgebracht ist.In FIG. 4, the section 13 is enlarged, so that one can clearly a guide groove 14, see 15 and 16, which is applied to a negative field 17, 18.
Der Abstand zwischen den Führungsrillen 14, 15 und 16 ist unge fähr 20% größer als die Breite der Führungsrille.The distance between the guide grooves 14 , 15 and 16 is approximately 20% larger than the width of the guide groove.
Laserstrahl 19 wird in dem Fall auf ein minimum von Energie in stalliert.In this case, laser beam 19 is installed at a minimum of energy.
Auf Fig. 5 ist das Führungsprinzip mit 3 Laserstrahlen 19, 20 und 21 dargestellt. In Fig. 5 the guide principle with 3 laser beams 19, 20 and 21 is shown.
Fig. 6 zeigt die Installation des zweistrahligen 22 und 23 Laser instrumente auf der Führungsplatte. Fig. 6 shows the installation of the two-beam 22 and 23 laser instruments on the guide plate.
In Fig. 7 wird eine fehlerhafte Führung gezeigt, so daß der Laser strahl 22 auf die Führungsrille 15 angegriffen wird. Bei der Grei fung des Laserstrahls 22 ist der andere Laserstrahl 23 noch ohne Greifung und darum ohne ein Signal, so daß bei solchen Kombinationen die Korrektursysteme des Abspielgerätes selbst in Richtung "L" korrigieren.In Fig. 7 a faulty guidance is shown so that the laser beam 22 is attacked on the guide groove 15 . In the Grei tion of the laser beam 22 , the other laser beam 23 is still without gripping and therefore without a signal, so that in such combinations, the correction systems of the player itself correct in the "L" direction.
In Fig. 8 wird ein anderer Lesefehler gezeigt, wo der Laserstrahl 23 die Rille 15 angreift und Laserstrahl 22 noch nicht an der dunklen Stelle angekommen ist. Daher versteht das Korrektursystem diese Kombination der Signale als Kommando zur Korrektur in Richtung "R".Another reading error is shown in FIG. 8, where the laser beam 23 attacks the groove 15 and the laser beam 22 has not yet reached the dark place. The correction system therefore understands this combination of the signals as a command for correction in the direction "R".
In Fig. 9 ist eine schematische Darstellung mit 3 unabhängigen In formationsschichten 29, 32 und 35, welche die Informationen auf selbständige Schichten speichern. Die Information der Schichten 29, 32 und 35 kann man nur mit bestimmten, für jede Schicht eigene Laserstrahlfrequenzen abtasten.In Fig. 9 is a schematic representation with 3 independent information layers 29 , 32 and 35 , which store the information on independent layers. The information of the layers 29 , 32 and 35 can only be scanned with certain laser beam frequencies which are separate for each layer.
Claims (4)
- - eine Reihe von Nummern und Folgen von selbständigen Infor mationsstücken sowie Musiktiteln, Bildstücken oder andere Informationen zu speichern und danach dem Abspielgerät zu liefern, um die o. g. lnformationsstücke auf der Datendisk zu finden;
- - zum Aufzeichnen, wieviel mal diese Platte abgespielt war;
- - zur Lagerung der Information, die später mit anderen Infor mationen verglichen wird, die aus einem Abspielgerät kommen und die dem entspricht, welche kodierte Funktionen dieses Gerät gerade wiederholt, um einige Funktionen dem Gerät zu sperren.
- - to store a number of numbers and sequences of independent pieces of information as well as music tracks, picture pieces or other information and then to deliver them to the playback device in order to find the above-mentioned pieces of information on the data disc;
- - to record how many times this disc has been played;
- - To store the information that will be compared later with other information, coming from a player and which corresponds to which coded functions this device is currently repeating to block some functions of the device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883803982 DE3803982A1 (en) | 1988-02-10 | 1988-02-10 | Data carrier with duplication prevention |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883803982 DE3803982A1 (en) | 1988-02-10 | 1988-02-10 | Data carrier with duplication prevention |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3803982A1 true DE3803982A1 (en) | 1990-01-25 |
Family
ID=6347032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883803982 Withdrawn DE3803982A1 (en) | 1988-02-10 | 1988-02-10 | Data carrier with duplication prevention |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3803982A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0511875A2 (en) * | 1991-04-30 | 1992-11-04 | Sharp Kabushiki Kaisha | Information recording and reproducing apparatus |
WO1996029639A2 (en) * | 1995-03-23 | 1996-09-26 | Zoom Television, Inc. | Interactive transaction management multimedia system |
EP0736212A1 (en) * | 1993-12-22 | 1996-10-09 | Randall Jamail | Method of masking data on a storage medium |
WO1997043761A2 (en) * | 1996-05-15 | 1997-11-20 | Intertrust Technologies Corp. | Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances |
EP1033711A2 (en) * | 1993-10-29 | 2000-09-06 | Time Warner Entertainment Co., L.P. | Software carrier for play on a system for authenticating software carriers |
US6138119A (en) | 1997-02-25 | 2000-10-24 | Intertrust Technologies Corp. | Techniques for defining, using and manipulating rights management data structures |
US6363488B1 (en) | 1995-02-13 | 2002-03-26 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US6449367B2 (en) | 1996-08-12 | 2002-09-10 | Intertrust Technologies Corp. | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
US6658568B1 (en) | 1995-02-13 | 2003-12-02 | Intertrust Technologies Corporation | Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management |
US7844835B2 (en) | 1995-02-13 | 2010-11-30 | Intertrust Technologies Corporation | Systems and methods for secure transaction management and electronic rights protection |
US7925898B2 (en) | 1996-08-12 | 2011-04-12 | Intertrust Technologies Corp. | Systems and methods using cryptography to protect secure computing environments |
US8185473B2 (en) | 1995-02-13 | 2012-05-22 | Intertrust Technologies Corporation | Trusted infrastructure support systems, methods and techniques for secure electronic commerce, electronic transactions, commerce process control and automation, distributed computing, and rights management |
US8510226B2 (en) | 1996-02-26 | 2013-08-13 | Graphon Corporation | Method for synchronous encryption between a client and a licensing agent |
US8533851B2 (en) | 1996-08-30 | 2013-09-10 | Intertrust Technologies Corporation | Systems and methods for secure transaction management and electronic rights protection |
-
1988
- 1988-02-10 DE DE19883803982 patent/DE3803982A1/en not_active Withdrawn
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0511875A3 (en) * | 1991-04-30 | 1994-05-11 | Sharp Kk | Information recording and reproducing apparatus |
EP0511875A2 (en) * | 1991-04-30 | 1992-11-04 | Sharp Kabushiki Kaisha | Information recording and reproducing apparatus |
EP1033711A2 (en) * | 1993-10-29 | 2000-09-06 | Time Warner Entertainment Co., L.P. | Software carrier for play on a system for authenticating software carriers |
EP1033711A3 (en) * | 1993-10-29 | 2002-04-03 | Time Warner Entertainment Co., L.P. | Software carrier for play on a system for authenticating software carriers |
EP0736212A1 (en) * | 1993-12-22 | 1996-10-09 | Randall Jamail | Method of masking data on a storage medium |
EP0736212A4 (en) * | 1993-12-22 | 1996-12-27 | Randall Jamail | Method of masking data on a storage medium |
US7844835B2 (en) | 1995-02-13 | 2010-11-30 | Intertrust Technologies Corporation | Systems and methods for secure transaction management and electronic rights protection |
US6658568B1 (en) | 1995-02-13 | 2003-12-02 | Intertrust Technologies Corporation | Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management |
US8751793B2 (en) | 1995-02-13 | 2014-06-10 | Intertrust Technologies Corp. | Trusted infrastructure support systems, methods and techniques for secure electronic commerce transaction and rights management |
US8543842B2 (en) | 1995-02-13 | 2013-09-24 | Intertrust Technologies Corporation | System and methods for secure transaction management and electronics rights protection |
US8185473B2 (en) | 1995-02-13 | 2012-05-22 | Intertrust Technologies Corporation | Trusted infrastructure support systems, methods and techniques for secure electronic commerce, electronic transactions, commerce process control and automation, distributed computing, and rights management |
US6363488B1 (en) | 1995-02-13 | 2002-03-26 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US7917749B2 (en) | 1995-02-13 | 2011-03-29 | Intertrust Technologies Corporation | Systems and methods for secure transaction management and electronic rights protection |
US6389402B1 (en) | 1995-02-13 | 2002-05-14 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US6427140B1 (en) | 1995-02-13 | 2002-07-30 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
WO1996029639A3 (en) * | 1995-03-23 | 1997-02-20 | Zoom Television Inc | Interactive transaction management multimedia system |
WO1996029639A2 (en) * | 1995-03-23 | 1996-09-26 | Zoom Television, Inc. | Interactive transaction management multimedia system |
US5822291A (en) * | 1995-03-23 | 1998-10-13 | Zoom Television, Inc. | Mass storage element and drive unit therefor |
US8510226B2 (en) | 1996-02-26 | 2013-08-13 | Graphon Corporation | Method for synchronous encryption between a client and a licensing agent |
WO1997043761A3 (en) * | 1996-05-15 | 1998-04-02 | Intertrust Tech Corp | Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances |
WO1997043761A2 (en) * | 1996-05-15 | 1997-11-20 | Intertrust Technologies Corp. | Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances |
US6618484B2 (en) | 1996-08-12 | 2003-09-09 | Intertrust Technologies Corporation | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
US6449367B2 (en) | 1996-08-12 | 2002-09-10 | Intertrust Technologies Corp. | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
US7925898B2 (en) | 1996-08-12 | 2011-04-12 | Intertrust Technologies Corp. | Systems and methods using cryptography to protect secure computing environments |
US8307212B2 (en) | 1996-08-12 | 2012-11-06 | Intertrust Technologies Corp. | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
US8533851B2 (en) | 1996-08-30 | 2013-09-10 | Intertrust Technologies Corporation | Systems and methods for secure transaction management and electronic rights protection |
US6138119A (en) | 1997-02-25 | 2000-10-24 | Intertrust Technologies Corp. | Techniques for defining, using and manipulating rights management data structures |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8133 | Disposal/non-payment of the application fee |