AU2002352563A1 - Optical disc authentication using alternate data modulation encoding schemes - Google Patents

Optical disc authentication using alternate data modulation encoding schemes

Info

Publication number
AU2002352563A1
AU2002352563A1 AU2002352563A AU2002352563A AU2002352563A1 AU 2002352563 A1 AU2002352563 A1 AU 2002352563A1 AU 2002352563 A AU2002352563 A AU 2002352563A AU 2002352563 A AU2002352563 A AU 2002352563A AU 2002352563 A1 AU2002352563 A1 AU 2002352563A1
Authority
AU
Australia
Prior art keywords
optical disc
data modulation
encoding schemes
alternate data
modulation encoding
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
AU2002352563A
Inventor
Douglas M. Carson
Henry B. Kelly
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.)
Doug Carson and Associates Inc
Original Assignee
Doug Carson and Associates Inc
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 Doug Carson and Associates Inc filed Critical Doug Carson and Associates Inc
Publication of AU2002352563A1 publication Critical patent/AU2002352563A1/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
    • G11B20/10—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AU2002352563A 2002-11-08 2002-11-08 Optical disc authentication using alternate data modulation encoding schemes Abandoned AU2002352563A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/035896 WO2004044912A1 (en) 2002-11-08 2002-11-08 Optical disc authentication using alternate data modulation encoding schemes

Publications (1)

Publication Number Publication Date
AU2002352563A1 true AU2002352563A1 (en) 2004-06-03

Family

ID=32311645

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002352563A Abandoned AU2002352563A1 (en) 2002-11-08 2002-11-08 Optical disc authentication using alternate data modulation encoding schemes

Country Status (2)

Country Link
AU (1) AU2002352563A1 (en)
WO (1) WO2004044912A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007145622A1 (en) 2006-06-12 2007-12-21 Thomson Licensing Method and apparatus for embedding second code into optical disc data by data modulation rule variation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69613010T2 (en) * 1995-10-09 2001-11-15 Matsushita Electric Ind Co Ltd Optical recording device
US6009549A (en) * 1997-05-15 1999-12-28 Cirrus Logic, Inc. Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization
JP2003529873A (en) * 2000-03-30 2003-10-07 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 Method for encoding a stream of bits of a binary source signal into a stream of bits of a binary channel signal
US6853320B2 (en) * 2001-01-16 2005-02-08 Victor Company Of Japan, Ltd. Modulation system

Also Published As

Publication number Publication date
WO2004044912A1 (en) 2004-05-27

Similar Documents

Publication Publication Date Title
AU2003296011A1 (en) Continuous biometric authentication using frames containing biometric data
AU2003276699A1 (en) Optical data recording method
AU2003267826A1 (en) Optical disc drive
AU2003216138A1 (en) Dispersion tolerant optical data transmitter
AU2003246124A1 (en) Optical disc, optical disc recording device, optical disc recording method
AU2003202502A1 (en) Security system using optical information recording medium
AU2002219606A1 (en) Optical information recording medium
HK1075119A1 (en) Optical disk
AU2002335339A1 (en) Optical disk polishing device
HK1108761A1 (en) Optical information recording medium
TW588738U (en) Optical disc carrier
EP1288930A3 (en) Optical recording method using optical recording medium
AU2002352563A1 (en) Optical disc authentication using alternate data modulation encoding schemes
EP1333435A3 (en) Optical disc
HK1053742A1 (en) Optical information recording medium.
AU2002354403A1 (en) Multi-level optical recording medium
AU2003255920A1 (en) Optical disc apparatus
AU2003249516A1 (en) Optical disc apparatus
AU2003253445A1 (en) Optical disc apparatus
AU2003227196A1 (en) Optical disc
AU2002335406A1 (en) Multi-level optical recording medium
AU2002304172A1 (en) Multi-level optical recording medium
AU2002344493A1 (en) Multilevel optical recording medium
AU2002354271A1 (en) Optical disc medium
AU2002247991A1 (en) Optical disc apparatus

Legal Events

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