GB0212386D0 - Copy protect - Google Patents

Copy protect

Info

Publication number
GB0212386D0
GB0212386D0 GB0212386A GB0212386A GB0212386D0 GB 0212386 D0 GB0212386 D0 GB 0212386D0 GB 0212386 A GB0212386 A GB 0212386A GB 0212386 A GB0212386 A GB 0212386A GB 0212386 D0 GB0212386 D0 GB 0212386D0
Authority
GB
United Kingdom
Prior art keywords
copy protect
copy
protect
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.)
Withdrawn
Application number
GB0212386A
Other versions
GB2373091A (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.)
BUTTERFIELD DONALD E
Original Assignee
BUTTERFIELD DONALD E
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 BUTTERFIELD DONALD E filed Critical BUTTERFIELD DONALD E
Priority to GB0212386A priority Critical patent/GB2373091A/en
Publication of GB0212386D0 publication Critical patent/GB0212386D0/en
Publication of GB2373091A publication Critical patent/GB2373091A/en
Withdrawn legal-status Critical Current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
    • 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
    • G11B20/00949—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 bad sectors, which are either physically destroyed or which are declared defective in the defect management information
    • 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
    • G11B20/0092—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
GB0212386A 2002-05-29 2002-05-29 Copy protection Withdrawn GB2373091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0212386A GB2373091A (en) 2002-05-29 2002-05-29 Copy protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0212386A GB2373091A (en) 2002-05-29 2002-05-29 Copy protection

Publications (2)

Publication Number Publication Date
GB0212386D0 true GB0212386D0 (en) 2002-07-10
GB2373091A GB2373091A (en) 2002-09-11

Family

ID=9937650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0212386A Withdrawn GB2373091A (en) 2002-05-29 2002-05-29 Copy protection

Country Status (1)

Country Link
GB (1) GB2373091A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2224841B1 (en) * 2003-03-17 2006-06-16 Pedro Gallego Rubio NETWORK USER IDENTIFICATION SYSTEM.
EP1551022A1 (en) 2003-12-29 2005-07-06 Sony International (Europe) GmbH Method for copy protection of digital content
EP1555670A1 (en) * 2004-01-14 2005-07-20 Sgn Method of preventing unauthorized duplication of an optical disc by authentification of a physical parameter, manufacturing process of such an optical disc and an optical disc thus obtained
WO2005078721A1 (en) * 2004-02-12 2005-08-25 Koninklijke Philips Electronics N.V. Reproduction apparatus and method for reproducing a unique medium identifier

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319343A1 (en) * 1982-11-08 1984-05-10 Vault Corp METHOD AND DEVICE FOR THE IMPOSSIBILITY OF UNAUTHORIZED COPIES OF RECORDED DATA
NL8703032A (en) * 1987-12-15 1989-07-03 Christian Alexander Oudshoorn Marking magnetic recording discs to prevent copying - using physical modifications to discs, e.g. punched holes, to make discs unique
ATE388470T1 (en) * 1997-05-30 2008-03-15 Macrovision Europ Ltd COPY PROTECTION METHOD FOR A RECORDING MEDIUM
JP2003532970A (en) * 2000-05-10 2003-11-05 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Copy protection system

Also Published As

Publication number Publication date
GB2373091A (en) 2002-09-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)