GB2359165B - Copy management for data systems - Google Patents

Copy management for data systems

Info

Publication number
GB2359165B
GB2359165B GB0111943A GB0111943A GB2359165B GB 2359165 B GB2359165 B GB 2359165B GB 0111943 A GB0111943 A GB 0111943A GB 0111943 A GB0111943 A GB 0111943A GB 2359165 B GB2359165 B GB 2359165B
Authority
GB
United Kingdom
Prior art keywords
data systems
copy management
copy
management
systems
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
GB0111943A
Other versions
GB0111943D0 (en
GB2359165A (en
Inventor
Richard Michael Taylor
David Peter Oxley
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.)
Memory Corp Technology Ltd
Original Assignee
Memory Corp Technology Ltd
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 Memory Corp Technology Ltd filed Critical Memory Corp Technology Ltd
Publication of GB0111943D0 publication Critical patent/GB0111943D0/en
Publication of GB2359165A publication Critical patent/GB2359165A/en
Application granted granted Critical
Publication of GB2359165B publication Critical patent/GB2359165B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B20/00086—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
    • G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00492—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted
    • G11B20/00521—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted wherein each session of a multisession recording medium is encrypted with a separate encryption key
    • 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
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/60—Solid state media

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)
GB0111943A 1998-11-20 1999-11-19 Copy management for data systems Expired - Fee Related GB2359165B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9825337.0A GB9825337D0 (en) 1998-11-20 1998-11-20 Copy management for data suystems
PCT/GB1999/003877 WO2000031744A1 (en) 1998-11-19 1999-11-19 Copy management for data systems

Publications (3)

Publication Number Publication Date
GB0111943D0 GB0111943D0 (en) 2001-07-04
GB2359165A GB2359165A (en) 2001-08-15
GB2359165B true GB2359165B (en) 2003-04-23

Family

ID=10842694

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9825337.0A Ceased GB9825337D0 (en) 1998-11-19 1998-11-20 Copy management for data suystems
GB0111943A Expired - Fee Related GB2359165B (en) 1998-11-20 1999-11-19 Copy management for data systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9825337.0A Ceased GB9825337D0 (en) 1998-11-19 1998-11-20 Copy management for data suystems

Country Status (3)

Country Link
GB (2) GB9825337D0 (en)
TW (1) TW451216B (en)
WO (1) WO2000031744A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886098B1 (en) 1999-08-13 2005-04-26 Microsoft Corporation Systems and methods for compression of key sets having multiple keys
WO2001015162A2 (en) * 1999-08-13 2001-03-01 Microsoft Corporation Methods and systems of protecting digital content
US7065216B1 (en) 1999-08-13 2006-06-20 Microsoft Corporation Methods and systems of protecting digital content
JP2002108710A (en) * 2000-07-24 2002-04-12 Sony Corp System and method for processing information, information processor and program providing medium
JP4660899B2 (en) * 2000-07-24 2011-03-30 ソニー株式会社 Data processing apparatus, data processing method, and program providing medium
US20040215534A1 (en) 2003-04-25 2004-10-28 Apple Computer, Inc. Method and system for network-based allowance control
KR101037838B1 (en) * 2003-04-25 2011-05-31 애플 인크. Methods and system for secure network-based distribution of content
EP1639440A4 (en) 2003-04-25 2009-03-11 Apple Inc Graphical user interface for browsing, searching and presenting media items
JP4081048B2 (en) * 2004-06-18 2008-04-23 株式会社東芝 Content protection method, apparatus and program
US7536016B2 (en) 2004-12-17 2009-05-19 Microsoft Corporation Encrypted content data structure package and generation thereof
US8296583B2 (en) * 2006-02-24 2012-10-23 Drakez Tokaj Rt. L.L.C. Physical digital media delivery
KR100710271B1 (en) * 2006-05-10 2007-04-20 엘지전자 주식회사 Method and apparatus for playing data between external device and tv set
EP2180419A1 (en) 2008-10-23 2010-04-28 ST Wireless SA Method of storing data in a memory device and a processing device for processing such data

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561685A2 (en) * 1992-03-16 1993-09-22 Fujitsu Limited An electronic data protection system
WO1994019886A1 (en) * 1993-02-26 1994-09-01 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Gmbh & Co. Kg Digital dictation system with protection against unauthorised listening-in

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561685A2 (en) * 1992-03-16 1993-09-22 Fujitsu Limited An electronic data protection system
WO1994019886A1 (en) * 1993-02-26 1994-09-01 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Gmbh & Co. Kg Digital dictation system with protection against unauthorised listening-in

Also Published As

Publication number Publication date
GB9825337D0 (en) 1999-01-13
GB0111943D0 (en) 2001-07-04
WO2000031744A1 (en) 2000-06-02
GB2359165A (en) 2001-08-15
TW451216B (en) 2001-08-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031119