DE69626936D1 - Gerät und Verfahren zur Synthese eines Informationssignals und eines Wiedergabe-Steuersignals und Gerät zur Informationssignalaufzeichnung - Google Patents

Gerät und Verfahren zur Synthese eines Informationssignals und eines Wiedergabe-Steuersignals und Gerät zur Informationssignalaufzeichnung

Info

Publication number
DE69626936D1
DE69626936D1 DE69626936T DE69626936T DE69626936D1 DE 69626936 D1 DE69626936 D1 DE 69626936D1 DE 69626936 T DE69626936 T DE 69626936T DE 69626936 T DE69626936 T DE 69626936T DE 69626936 D1 DE69626936 D1 DE 69626936D1
Authority
DE
Germany
Prior art keywords
information signal
signal
copy control
code
recording
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 - Lifetime
Application number
DE69626936T
Other languages
English (en)
Other versions
DE69626936T2 (de
Inventor
Tetsuya Naruse
Michimasa Komatsubara
Kaname Mori
Jun Iwasaki
Teruo Masaki
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
Publication of DE69626936D1 publication Critical patent/DE69626936D1/de
Application granted granted Critical
Publication of DE69626936T2 publication Critical patent/DE69626936T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G11B20/10—Digital recording or reproducing
    • 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
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G11B20/00913—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm based on a spread spectrum technique
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • 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
    • 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
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91371—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video color burst signal being modified

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Selective Calling Equipment (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
DE69626936T 1995-12-04 1996-11-27 Gerät und Verfahren zur Synthese eines Informationssignals und eines Wiedergabe-Steuersignals und Gerät zur Informationssignalaufzeichnung Expired - Lifetime DE69626936T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33995995 1995-12-04
JP33995995A JP3371187B2 (ja) 1995-12-04 1995-12-04 情報信号記録装置および方法、並びに情報信号複製装置および方法

Publications (2)

Publication Number Publication Date
DE69626936D1 true DE69626936D1 (de) 2003-04-30
DE69626936T2 DE69626936T2 (de) 2004-02-05

Family

ID=18332390

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69626936T Expired - Lifetime DE69626936T2 (de) 1995-12-04 1996-11-27 Gerät und Verfahren zur Synthese eines Informationssignals und eines Wiedergabe-Steuersignals und Gerät zur Informationssignalaufzeichnung

Country Status (11)

Country Link
US (1) US5982977A (de)
EP (1) EP0778566B1 (de)
JP (1) JP3371187B2 (de)
KR (1) KR100484208B1 (de)
CN (1) CN1161988C (de)
AT (1) ATE235735T1 (de)
CA (1) CA2191667C (de)
DE (1) DE69626936T2 (de)
ES (1) ES2192218T3 (de)
ID (1) ID17086A (de)
TW (1) TW353174B (de)

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Also Published As

Publication number Publication date
JPH09163341A (ja) 1997-06-20
CN1161620A (zh) 1997-10-08
JP3371187B2 (ja) 2003-01-27
ATE235735T1 (de) 2003-04-15
KR970050856A (ko) 1997-07-29
TW353174B (en) 1999-02-21
CA2191667A1 (en) 1997-06-05
EP0778566A3 (de) 1997-12-17
ES2192218T3 (es) 2003-10-01
CN1161988C (zh) 2004-08-11
ID17086A (id) 1997-12-04
US5982977A (en) 1999-11-09
KR100484208B1 (ko) 2005-08-17
EP0778566A2 (de) 1997-06-11
CA2191667C (en) 2005-07-12
EP0778566B1 (de) 2003-03-26
DE69626936T2 (de) 2004-02-05

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