AU7362198A - Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor - Google Patents

Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor

Info

Publication number
AU7362198A
AU7362198A AU73621/98A AU7362198A AU7362198A AU 7362198 A AU7362198 A AU 7362198A AU 73621/98 A AU73621/98 A AU 73621/98A AU 7362198 A AU7362198 A AU 7362198A AU 7362198 A AU7362198 A AU 7362198A
Authority
AU
Australia
Prior art keywords
subcode
arrangement
storage medium
data storage
method therefor
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
AU73621/98A
Inventor
Jon J. Blixt
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.)
GlassBridge Enterprises Inc
Original Assignee
Imation 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 Imation Corp filed Critical Imation Corp
Publication of AU7362198A publication Critical patent/AU7362198A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)
AU73621/98A 1997-05-16 1998-05-06 Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor Abandoned AU7362198A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85723597A 1997-05-16 1997-05-16
US08857235 1997-05-16
PCT/US1998/008422 WO1998052114A1 (en) 1997-05-16 1998-05-06 Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor

Publications (1)

Publication Number Publication Date
AU7362198A true AU7362198A (en) 1998-12-08

Family

ID=25325528

Family Applications (1)

Application Number Title Priority Date Filing Date
AU73621/98A Abandoned AU7362198A (en) 1997-05-16 1998-05-06 Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor

Country Status (2)

Country Link
AU (1) AU7362198A (en)
WO (1) WO1998052114A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591367B1 (en) 1999-03-31 2003-07-08 Atabok Japan, Inc. Method and apparatus for preventing unauthorized copying and distributing of electronic messages transmitted over a network
EP1181689B1 (en) * 1999-05-11 2004-03-10 Macrovision Corporation Methods for Recording and Reading Data from a Compact Disk, and a Compact Disk Player
GB0003530D0 (en) * 2000-02-15 2000-04-05 Dilla Limited C The copy protection of digital audio compact discs
GB0003531D0 (en) * 2000-02-15 2000-04-05 Dilla Limited C The copy protection of digital audio compact discs
CA2422515C (en) * 2000-04-14 2011-05-03 Midbar Tech Ltd Prevention of cd-audio piracy using sub-code channels
US7356142B1 (en) 2000-05-10 2008-04-08 Macrovision Corporation Secure compact disk and player
US6842522B1 (en) 2000-06-01 2005-01-11 Macrovision Corporation Secure digital video disk and player
DE10140237A1 (en) * 2001-08-22 2003-03-27 Brainshield Technologies Inc Copy protection device
ES2221506B1 (en) * 2001-10-16 2005-10-01 Sonopress Ibermemory, S.A. CD-AUDIO RECORDING PROCEDURE TO AVOID YOUR COPY.
WO2003038822A1 (en) * 2001-10-31 2003-05-08 Sony Corporation Data recording method, recorder, and data reproducing method and device
JP2003308651A (en) * 2002-04-12 2003-10-31 Hudson Soft Co Ltd Data modifying apparatus, modified data generating method, computer executionable program for modified data generating method, original data recording method, computer executionable program for original data recording method, recording medium, illegitimate reading execution preventing apparatus, illegitimate reading execution preventing method, and computer executionable program for illegitimate reading execution preventing method
US20060136729A1 (en) * 2004-12-20 2006-06-22 Macrovision Europe Limited Copy protection for optical discs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215232A (en) * 1984-04-11 1985-10-28 Nec Corp System for preventing wrong use of information
JP2575988B2 (en) * 1992-03-18 1997-01-29 富士通株式会社 Optical disk copy prevention method, optical disk and optical disk apparatus
EP0711479A4 (en) * 1993-07-26 1996-10-02 Elonex Technologies Inc Cd prom encryption system
JPH08153331A (en) * 1994-09-29 1996-06-11 Applics:Kk Method and device for discriminating copied cd-rom

Also Published As

Publication number Publication date
WO1998052114A1 (en) 1998-11-19

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Legal Events

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