GB0613404D0 - Copy protection system for data carriers - Google Patents

Copy protection system for data carriers

Info

Publication number
GB0613404D0
GB0613404D0 GBGB0613404.3A GB0613404A GB0613404D0 GB 0613404 D0 GB0613404 D0 GB 0613404D0 GB 0613404 A GB0613404 A GB 0613404A GB 0613404 D0 GB0613404 D0 GB 0613404D0
Authority
GB
United Kingdom
Prior art keywords
protection system
copy protection
data carriers
carriers
copy
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.)
Granted
Application number
GBGB0613404.3A
Other versions
GB2433157A (en
GB2433157B (en
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.)
First 4 Internet Ltd
Original Assignee
First 4 Internet 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 First 4 Internet Ltd filed Critical First 4 Internet Ltd
Priority to GB0613404A priority Critical patent/GB2433157B/en
Priority claimed from GB0313240A external-priority patent/GB2402802B/en
Publication of GB0613404D0 publication Critical patent/GB0613404D0/en
Publication of GB2433157A publication Critical patent/GB2433157A/en
Application granted granted Critical
Publication of GB2433157B publication Critical patent/GB2433157B/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
    • G11B20/00659—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a control step which is implemented as an executable file stored on the 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
    • G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
    • G11B20/00688—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that a usable copy of recorded data can be made on another medium
    • 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
    • G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • G11B20/00956—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches said intentional errors occurring due to an invalid TOC
GB0613404A 2003-06-09 2003-06-09 Copy protection system for data carriers Expired - Fee Related GB2433157B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0613404A GB2433157B (en) 2003-06-09 2003-06-09 Copy protection system for data carriers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0313240A GB2402802B (en) 2003-06-09 2003-06-09 Copy protection system for data carriers
GB0613404A GB2433157B (en) 2003-06-09 2003-06-09 Copy protection system for data carriers

Publications (3)

Publication Number Publication Date
GB0613404D0 true GB0613404D0 (en) 2006-08-16
GB2433157A GB2433157A (en) 2007-06-13
GB2433157B GB2433157B (en) 2007-11-21

Family

ID=38617559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0613404A Expired - Fee Related GB2433157B (en) 2003-06-09 2003-06-09 Copy protection system for data carriers

Country Status (1)

Country Link
GB (1) GB2433157B (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047292A (en) * 1996-09-12 2000-04-04 Cdknet, L.L.C. Digitally encoded recording medium
GB2344925A (en) * 1998-12-16 2000-06-21 Memory Corp Plc Optical storage disc storing compressed and uncompressed data
WO2001080546A2 (en) * 1999-08-09 2001-10-25 Midbar Tech Ltd. Prevention of cd-audio piracy using sub-code channels
DE60020167D1 (en) * 1999-12-21 2005-06-16 Lockstream Corp DIGITAL CONTENT ASSURANCE
GB0003530D0 (en) * 2000-02-15 2000-04-05 Dilla Limited C The copy protection of digital audio compact discs
WO2002075735A1 (en) * 2001-03-19 2002-09-26 Sunncomm, Inc. Apparatus and method for digital content concealment
GB0124723D0 (en) * 2001-10-15 2001-12-05 Macrovision Corp Improvements in or relating to the copy protection of optical discs
GB2415826B (en) * 2002-03-08 2006-06-07 First 4 Internet Ltd Data protection system
GB0216142D0 (en) * 2002-07-11 2002-08-21 Knox Alistair J Method and apparatus for optical disc access control

Also Published As

Publication number Publication date
GB2433157A (en) 2007-06-13
GB2433157B (en) 2007-11-21

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Legal Events

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

Effective date: 20150609