CN1209247A - 防止复制的记录和重放系统 - Google Patents

防止复制的记录和重放系统 Download PDF

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Publication number
CN1209247A
CN1209247A CN96180133A CN96180133A CN1209247A CN 1209247 A CN1209247 A CN 1209247A CN 96180133 A CN96180133 A CN 96180133A CN 96180133 A CN96180133 A CN 96180133A CN 1209247 A CN1209247 A CN 1209247A
Authority
CN
China
Prior art keywords
broadcast
signal
recording
copy
prevention
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.)
Pending
Application number
CN96180133A
Other languages
English (en)
Chinese (zh)
Inventor
井上肇
C·C·李
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics Inc
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 Sony Electronics Inc filed Critical Sony Electronics Inc
Publication of CN1209247A publication Critical patent/CN1209247A/zh
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • 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 or rendering scenes according to encoded video stream scene graphs
    • H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/165—Centralised control of user terminal ; Registering at central
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91314—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
CN96180133A 1996-01-03 1996-12-20 防止复制的记录和重放系统 Pending CN1209247A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58247496A 1996-01-03 1996-01-03
US08/582,474 1996-01-03

Publications (1)

Publication Number Publication Date
CN1209247A true CN1209247A (zh) 1999-02-24

Family

ID=24329299

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96180133A Pending CN1209247A (zh) 1996-01-03 1996-12-20 防止复制的记录和重放系统

Country Status (9)

Country Link
US (1) US5889919A (enExample)
EP (1) EP0882357B1 (enExample)
JP (1) JP2000503193A (enExample)
KR (1) KR19990076944A (enExample)
CN (1) CN1209247A (enExample)
AT (1) ATE271742T1 (enExample)
AU (1) AU1344097A (enExample)
DE (1) DE69632965T2 (enExample)
WO (1) WO1997025816A1 (enExample)

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CN100527141C (zh) * 2000-06-02 2009-08-12 松下电器产业株式会社 记录及回放装置和方法

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CN100527141C (zh) * 2000-06-02 2009-08-12 松下电器产业株式会社 记录及回放装置和方法

Also Published As

Publication number Publication date
DE69632965D1 (de) 2004-08-26
US5889919A (en) 1999-03-30
KR19990076944A (ko) 1999-10-25
JP2000503193A (ja) 2000-03-14
AU1344097A (en) 1997-08-01
WO1997025816A1 (en) 1997-07-17
EP0882357A4 (en) 2000-11-15
EP0882357A1 (en) 1998-12-09
ATE271742T1 (de) 2004-08-15
EP0882357B1 (en) 2004-07-21
DE69632965T2 (de) 2005-08-25

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