HK1026050A1 - Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function. - Google Patents

Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function.

Info

Publication number
HK1026050A1
HK1026050A1 HK00104106A HK00104106A HK1026050A1 HK 1026050 A1 HK1026050 A1 HK 1026050A1 HK 00104106 A HK00104106 A HK 00104106A HK 00104106 A HK00104106 A HK 00104106A HK 1026050 A1 HK1026050 A1 HK 1026050A1
Authority
HK
Hong Kong
Prior art keywords
recording
reproducing
protection function
copy protection
reproducing system
Prior art date
Application number
HK00104106A
Other languages
English (en)
Inventor
Kazuo Kuroda
Toshio Suzuki
Yoshiaki Moriyama
Kazumi Sugaya
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of HK1026050A1 publication Critical patent/HK1026050A1/xx

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
    • G11B20/00086—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
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • 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
    • G11B20/00753—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 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
    • G11B20/00768—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 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
    • 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
    • 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
    • H04N2005/91321—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
    • H04N2005/91335—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 watermark
    • 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
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums

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)
  • Television Systems (AREA)
  • Storage Device Security (AREA)
HK00104106A 1998-07-03 2000-07-05 Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function. HK1026050A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20432898A JP4208998B2 (ja) 1998-07-03 1998-07-03 複製制限機能を備えた記録再生システム、記録装置および再生装置

Publications (1)

Publication Number Publication Date
HK1026050A1 true HK1026050A1 (en) 2000-12-01

Family

ID=16488683

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00104106A HK1026050A1 (en) 1998-07-03 2000-07-05 Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function.

Country Status (6)

Country Link
US (1) US6633723B1 (fr)
EP (2) EP1381044B1 (fr)
JP (1) JP4208998B2 (fr)
CN (1) CN1210708C (fr)
DE (2) DE69919635T2 (fr)
HK (1) HK1026050A1 (fr)

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EP1193975A4 (fr) 2000-04-04 2005-01-26 Sony Corp Emetteur, procede de transmission de signal, systeme et procede pour distribuer des donnees, recepteur de donnees, dispositif et procede pour fournir des donnees, et emetteur de donnees
JP2001292431A (ja) * 2000-04-04 2001-10-19 Sony Corp 送信装置及び信号送信方法
JP3573685B2 (ja) 2000-05-19 2004-10-06 松下電器産業株式会社 再生記録装置
JP4649760B2 (ja) * 2000-05-31 2011-03-16 ソニー株式会社 コンテンツ・コピー管理システム及び方法、情報処理装置及び方法、並びに、記憶媒体
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JP4420571B2 (ja) * 2001-02-22 2010-02-24 ソニー株式会社 送信装置および方法、受信装置および方法、情報送受信システムおよび方法、記録媒体、並びにプログラム
JP3519691B2 (ja) * 2001-02-26 2004-04-19 株式会社東芝 制限情報の整合処理機能付き情報録再装置および方法
JP4317667B2 (ja) 2001-03-07 2009-08-19 パイオニア株式会社 複製管理方法、複製管理装置及びプログラム
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KR20050055547A (ko) * 2003-12-08 2005-06-13 삼성전자주식회사 복사 제어 정보를 이용한 암호화된 데이터의 복호화 방법및 그 장치와, 이를 구현하기 위한 프로그램이 기록된컴퓨터로 읽을 수 있는 기록 매체
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Also Published As

Publication number Publication date
DE69923241D1 (de) 2005-02-17
CN1210708C (zh) 2005-07-13
DE69923241T2 (de) 2006-02-16
EP1381044B1 (fr) 2005-01-12
EP1381044A3 (fr) 2004-04-14
JP4208998B2 (ja) 2009-01-14
JP2000023088A (ja) 2000-01-21
US6633723B1 (en) 2003-10-14
CN1241776A (zh) 2000-01-19
EP0969462A1 (fr) 2000-01-05
EP1381044A2 (fr) 2004-01-14
DE69919635T2 (de) 2005-09-15
DE69919635D1 (de) 2004-09-30
EP0969462B1 (fr) 2004-08-25

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Legal Events

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PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20130702