[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

AU4238400A - Copy protection signature for compact disks - Google Patents

Copy protection signature for compact disks

Info

Publication number
AU4238400A
AU4238400A AU42384/00A AU4238400A AU4238400A AU 4238400 A AU4238400 A AU 4238400A AU 42384/00 A AU42384/00 A AU 42384/00A AU 4238400 A AU4238400 A AU 4238400A AU 4238400 A AU4238400 A AU 4238400A
Authority
AU
Australia
Prior art keywords
copy protection
compact disks
protection signature
signature
disks
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.)
Abandoned
Application number
AU42384/00A
Inventor
Daniel D. Downing
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.)
Adeia Media LLC
Original Assignee
Macrovision 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 Macrovision Corp filed Critical Macrovision Corp
Publication of AU4238400A publication Critical patent/AU4238400A/en
Abandoned 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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/0063—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
    • 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AU42384/00A 1999-04-12 2000-04-12 Copy protection signature for compact disks Abandoned AU4238400A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12887999P 1999-04-12 1999-04-12
US60128879 1999-04-12
PCT/US2000/009924 WO2000062293A1 (en) 1999-04-12 2000-04-12 Copy protection signature for compact disks

Publications (1)

Publication Number Publication Date
AU4238400A true AU4238400A (en) 2000-11-14

Family

ID=22437431

Family Applications (1)

Application Number Title Priority Date Filing Date
AU42384/00A Abandoned AU4238400A (en) 1999-04-12 2000-04-12 Copy protection signature for compact disks

Country Status (2)

Country Link
AU (1) AU4238400A (en)
WO (1) WO2000062293A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1299881A2 (en) * 2000-07-11 2003-04-09 Matsushita Electric Industrial Co., Ltd. Information recording medium, information recording apparatus, information recording method, information reproduction apparatus and information reproduction method
CN1747038B (en) * 2000-11-14 2011-10-19 皇家飞利浦电子股份有限公司 Record carrier with watermark
WO2002052557A1 (en) 2000-12-22 2002-07-04 Koninklijke Philips Electronics N.V. Reproduction arrangement, tranmission arrangement, method of forming and transmitting coded information and method of reproducing coded information
DE10140237A1 (en) * 2001-08-22 2003-03-27 Brainshield Technologies Inc Copy protection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699434A (en) * 1995-12-12 1997-12-16 Hewlett-Packard Company Method of inhibiting copying of digital data
WO1998008180A2 (en) * 1996-08-05 1998-02-26 T.T.R. Technologies Ltd. Digital optical media authentication and copy protection method

Also Published As

Publication number Publication date
WO2000062293A1 (en) 2000-10-19

Similar Documents

Publication Publication Date Title
AU2340001A (en) Case for protecting compact disc
EP0803789A3 (en) Software copy protection mechanism
AU2509200A (en) Copy protection control system
AU1327801A (en) Systems and methods for protecting private information
AU7068600A (en) Encrypted coupons
AU6082799A (en) System for copy protection of recorded information
AU1730801A (en) Device for reproducing data
AU6083700A (en) Compact rear projection system
AU6734100A (en) Device for data reproduction
AU5987499A (en) Protect arrangement
EP1096340A3 (en) Improved holographic media
AU6734200A (en) Recording device
AU6772800A (en) Distributed file data location
AU6182000A (en) Remedies for neurogenic pains
AUPQ983500A0 (en) Hyperlink access system
AU2280801A (en) Holographic films
AU4238400A (en) Copy protection signature for compact disks
AU9187898A (en) Disk device
AU2001262823A1 (en) System protection scheme
AU8038198A (en) Disk unit
AU9188298A (en) Disk device
AU2520101A (en) Digital signature
AU2631499A (en) Copy protection
AU2003274455A1 (en) Secure local copy protection
AU2678200A (en) Device for protecting splices

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase