DE69720136D1 - Videoübertragungsverfahren, Videokopierschutzverfahren und -vorrichtung - Google Patents

Videoübertragungsverfahren, Videokopierschutzverfahren und -vorrichtung

Info

Publication number
DE69720136D1
DE69720136D1 DE69720136T DE69720136T DE69720136D1 DE 69720136 D1 DE69720136 D1 DE 69720136D1 DE 69720136 T DE69720136 T DE 69720136T DE 69720136 T DE69720136 T DE 69720136T DE 69720136 D1 DE69720136 D1 DE 69720136D1
Authority
DE
Germany
Prior art keywords
video
copy protection
transmission method
video transmission
protection method
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
DE69720136T
Other languages
English (en)
Other versions
DE69720136T2 (de
Inventor
Takehiro Sugita
Akira Ogino
Takashi Usui
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 Corp
Original Assignee
Sony Corp
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 Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69720136D1 publication Critical patent/DE69720136D1/de
Publication of DE69720136T2 publication Critical patent/DE69720136T2/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
    • 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
    • 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
    • H04N2005/91321—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 protection control signal, e.g. a record inhibit signal
    • 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]
    • 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
    • H04N2005/9135—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal by superimposing the spectrally spread copy protection signal onto the video signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (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)
DE69720136T 1996-10-28 1997-10-21 Videoübertragungsverfahren, Videokopierschutzverfahren und -vorrichtung Expired - Fee Related DE69720136T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30243996 1996-10-28
JP30243996A JP3671992B2 (ja) 1996-10-28 1996-10-28 映像信号受信装置および映像信号受信方法

Publications (2)

Publication Number Publication Date
DE69720136D1 true DE69720136D1 (de) 2003-04-30
DE69720136T2 DE69720136T2 (de) 2004-02-05

Family

ID=17908954

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69720136T Expired - Fee Related DE69720136T2 (de) 1996-10-28 1997-10-21 Videoübertragungsverfahren, Videokopierschutzverfahren und -vorrichtung

Country Status (5)

Country Link
US (1) US6389137B1 (de)
EP (1) EP0838949B1 (de)
JP (1) JP3671992B2 (de)
CN (1) CN1161996C (de)
DE (1) DE69720136T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3594063B2 (ja) 1997-01-13 2004-11-24 ソニー株式会社 情報信号伝送方法および複製防止制御方法
JP2000013585A (ja) * 1998-06-19 2000-01-14 Sony Corp 付加情報の重畳装置、付加情報の重畳方法、画像情報記録装置および画像情報記録方法
AU3343400A (en) * 1999-01-06 2000-07-24 Digital Video Express, L.P. Digital content distribution system and method
JP2000324468A (ja) * 1999-05-14 2000-11-24 Sony Corp 映像信号出力装置、映像信号入力装置、スクランブル方法、デスクランブル方法
JP2001069583A (ja) * 1999-08-25 2001-03-16 Sony Corp 情報信号伝送方法、情報信号伝送システム、情報信号送信装置および情報信号受信装置
JP3990853B2 (ja) * 2000-03-24 2007-10-17 株式会社トリニティーセキュリティーシステムズ デジタルコピー防止処理装置、その装置により処理されたデジタルデータを記録した再生可能な記録媒体、デジタルコピー防止処理方法、その方法をコンピュータに実行させるプログラムを記録したコンピュータ読み取り可能な記録媒体およびその方法により処理されたデジタルデータを記録した再生可能な記録媒体
US20050189444A1 (en) * 2004-03-01 2005-09-01 Meyer Products, Inc. Wireless control system for a spreader

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984624A (en) 1974-07-25 1976-10-05 Weston Instruments, Inc. Video system for conveying digital and analog information
US5363108A (en) * 1984-12-03 1994-11-08 Charles A. Phillips Time domain radio transmission system
US5177604A (en) * 1986-05-14 1993-01-05 Radio Telcom & Technology, Inc. Interactive television and data transmission system
US4969041A (en) 1988-09-23 1990-11-06 Dubner Computer Systems, Inc. Embedment of data in a video signal
US5062122A (en) * 1988-09-28 1991-10-29 Kenwood Corporation Delay-locked loop circuit in spread spectrum receiver
US5134496A (en) 1989-05-26 1992-07-28 Technicolor Videocassette Of Michigan Inc. Bilateral anti-copying device for video systems
US5499265A (en) * 1989-08-07 1996-03-12 Omnipoint Data Company, Incorporated Spread spectrum correlator
CH679718A5 (de) * 1989-10-19 1992-03-31 Ascom Zelcom Ag
JPH043540A (ja) * 1990-04-19 1992-01-08 Yamaha Corp スペクトラム拡散通信装置
JP3599334B2 (ja) * 1991-08-16 2004-12-08 マルティチップ テクノロジー， インコーポレイテッド 高性能ダイナミックメモリシステム
JPH0646032A (ja) * 1991-10-24 1994-02-18 Ricoh Co Ltd スペクトル拡散通信方式
US5243423A (en) * 1991-12-20 1993-09-07 A. C. Nielsen Company Spread spectrum digital data transmission over TV video
KR100269004B1 (ko) * 1992-01-08 2000-10-16 카츠넬슨 론 디. 다중채널 텔레비젼 신호 스크램블링과 디스크램블링 시스템 및 방법
US5276859A (en) * 1992-03-09 1994-01-04 Cabletron Systems, Inc. Accelerated token ring network
TW221507B (de) 1992-06-16 1994-03-01 Matsushita Electric Ind Co Ltd
US5533046A (en) * 1992-10-08 1996-07-02 Lund; Vanmetre Spread spectrum communication system
US5375140A (en) * 1992-11-24 1994-12-20 Stanford Telecommunications, Inc. Wireless direct sequence spread spectrum digital cellular telephone system
US5596599A (en) * 1992-12-04 1997-01-21 Canon Kabushiki Kaisha Spread spectrum receiving apparatus
JPH06315020A (ja) * 1993-01-06 1994-11-08 Ricoh Co Ltd スペクトル拡散通信方式
US5546424A (en) * 1993-06-30 1996-08-13 Casio Computer Co., Ltd. Spread spectrum communication system
US5488627A (en) * 1993-11-29 1996-01-30 Lexmark International, Inc. Spread spectrum clock generator and associated method
JPH08221315A (ja) * 1995-02-15 1996-08-30 Hitachi Ltd 情報処理装置
JPH08288928A (ja) * 1995-04-14 1996-11-01 Toshiba Corp スペクトラム拡散通信装置
US5867489A (en) * 1996-05-29 1999-02-02 Lockheed Martin Corp. Method and apparatus for TDMA slot synchronization with precision ranging
US5862133A (en) * 1996-08-02 1999-01-19 Golden Bridge Technology Packet-switched spread-spectrum system
US5848155A (en) * 1996-09-04 1998-12-08 Nec Research Institute, Inc. Spread spectrum watermark for embedded signalling
US5930366A (en) * 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system

Also Published As

Publication number Publication date
DE69720136T2 (de) 2004-02-05
EP0838949B1 (de) 2003-03-26
US6389137B1 (en) 2002-05-14
CN1161996C (zh) 2004-08-11
JPH10136305A (ja) 1998-05-22
EP0838949A3 (de) 1998-05-06
CN1195951A (zh) 1998-10-14
EP0838949A2 (de) 1998-04-29
JP3671992B2 (ja) 2005-07-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee