DE3750724T2 - Verfahren und vorrichtung zur übertragung von video, audio, teletext und daten zu gruppen von decodierern in einem übertragungssystem. - Google Patents

Verfahren und vorrichtung zur übertragung von video, audio, teletext und daten zu gruppen von decodierern in einem übertragungssystem.

Info

Publication number
DE3750724T2
DE3750724T2 DE3750724T DE3750724T DE3750724T2 DE 3750724 T2 DE3750724 T2 DE 3750724T2 DE 3750724 T DE3750724 T DE 3750724T DE 3750724 T DE3750724 T DE 3750724T DE 3750724 T2 DE3750724 T2 DE 3750724T2
Authority
DE
Germany
Prior art keywords
decoder
individual
group
transmitted
audio
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.)
Expired - Fee Related
Application number
DE3750724T
Other languages
English (en)
Other versions
DE3750724D1 (de
Inventor
Nigel Seth-Smith
Cameron Bates
Samson Lim
Rassel William Van
Robert Yoneda
Keith Lucas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scientific Atlanta LLC
Original Assignee
Scientific Atlanta LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scientific Atlanta LLC filed Critical Scientific Atlanta LLC
Publication of DE3750724D1 publication Critical patent/DE3750724D1/de
Application granted granted Critical
Publication of DE3750724T2 publication Critical patent/DE3750724T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0888—Subscription systems therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Electricity, gas or water supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42684—Client identification by a unique number or address, e.g. serial number, MAC address, socket ID
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H04N7/03—Subscription systems therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
DE3750724T 1986-08-14 1987-08-14 Verfahren und vorrichtung zur übertragung von video, audio, teletext und daten zu gruppen von decodierern in einem übertragungssystem. Expired - Fee Related DE3750724T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/896,261 US4866770A (en) 1986-07-08 1986-08-14 Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
PCT/US1987/001983 WO1988001463A1 (en) 1986-08-14 1987-08-14 Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system

Publications (2)

Publication Number Publication Date
DE3750724D1 DE3750724D1 (de) 1994-12-08
DE3750724T2 true DE3750724T2 (de) 1995-03-23

Family

ID=25405908

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3750724T Expired - Fee Related DE3750724T2 (de) 1986-08-14 1987-08-14 Verfahren und vorrichtung zur übertragung von video, audio, teletext und daten zu gruppen von decodierern in einem übertragungssystem.

Country Status (11)

Country Link
US (1) US4866770A (de)
EP (1) EP0318507B1 (de)
JP (1) JP2752979B2 (de)
AT (1) ATE113782T1 (de)
AU (1) AU606354B2 (de)
CA (1) CA1339428C (de)
DE (1) DE3750724T2 (de)
DK (1) DK198788A (de)
FI (1) FI89545C (de)
NO (1) NO173630C (de)
WO (1) WO1988001463A1 (de)

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AU7850587A (en) 1988-03-08
DK198788A (da) 1988-06-14
NO173630B (no) 1993-09-27
DE3750724D1 (de) 1994-12-08
NO881628D0 (no) 1988-04-14
WO1988001463A1 (en) 1988-02-25
CA1339428C (en) 1997-09-02
NO881628L (no) 1988-06-09
EP0318507A1 (de) 1989-06-07
ATE113782T1 (de) 1994-11-15
NO173630C (no) 1994-01-05
EP0318507B1 (de) 1994-11-02
FI89545C (fi) 1993-10-11
JPH02500477A (ja) 1990-02-15
FI890683A0 (fi) 1989-02-13
DK198788D0 (da) 1988-04-12
JP2752979B2 (ja) 1998-05-18
US4866770A (en) 1989-09-12
EP0318507A4 (en) 1991-10-30
FI89545B (fi) 1993-06-30
AU606354B2 (en) 1991-02-07
FI890683A (fi) 1989-02-13

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