IL152251A0 - Prevention of cd-audio piracy using sub-code channels - Google Patents

Prevention of cd-audio piracy using sub-code channels

Info

Publication number
IL152251A0
IL152251A0 IL15225101A IL15225101A IL152251A0 IL 152251 A0 IL152251 A0 IL 152251A0 IL 15225101 A IL15225101 A IL 15225101A IL 15225101 A IL15225101 A IL 15225101A IL 152251 A0 IL152251 A0 IL 152251A0
Authority
IL
Israel
Prior art keywords
prevention
sub
code channels
piracy
audio
Prior art date
Application number
IL15225101A
Original Assignee
Midbar Tech 1998 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
Priority claimed from US09/549,820 external-priority patent/US6988206B1/en
Application filed by Midbar Tech 1998 Ltd filed Critical Midbar Tech 1998 Ltd
Priority claimed from PCT/IL2001/000295 external-priority patent/WO2001080546A2/en
Publication of IL152251A0 publication Critical patent/IL152251A0/en

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
    • G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
    • G11B20/00202—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier wherein the copy protection scheme builds on multi-session recording, e.g. defective table of contents [TOC] in the 2nd session
    • 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
    • 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
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1267—Address data
    • G11B2020/1271—Address data the address data being stored in a subcode, e.g. in the Q channel of a CD
    • 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
    • G11B2020/1461—8 to 14 modulation, e.g. the EFM code used on CDs or mini-discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
IL15225101A 2000-04-14 2001-03-29 Prevention of cd-audio piracy using sub-code channels IL152251A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/549,820 US6988206B1 (en) 1998-10-20 2000-04-14 Prevention of CD-audio piracy using sub-code channels
PCT/IL2001/000295 WO2001080546A2 (en) 1999-08-09 2001-03-29 Prevention of cd-audio piracy using sub-code channels

Publications (1)

Publication Number Publication Date
IL152251A0 true IL152251A0 (en) 2003-05-29

Family

ID=24194491

Family Applications (1)

Application Number Title Priority Date Filing Date
IL15225101A IL152251A0 (en) 2000-04-14 2001-03-29 Prevention of cd-audio piracy using sub-code channels

Country Status (9)

Country Link
EP (1) EP1297651A4 (en)
JP (1) JP2004501477A (en)
KR (1) KR100712429B1 (en)
CN (1) CN100336336C (en)
AU (1) AU781208B2 (en)
BR (1) BR0110039A (en)
CA (1) CA2422515C (en)
IL (1) IL152251A0 (en)
MX (1) MXPA02010186A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0124723D0 (en) * 2001-10-15 2001-12-05 Macrovision Corp Improvements in or relating to the copy protection of optical discs
KR200452225Y1 (en) * 2008-06-05 2011-02-14 (주)시공사 Wallboard Panel For Interior With Discarded Wood
US20100214893A1 (en) * 2009-02-25 2010-08-26 Aylward Adrian R Copy protection using complexity and uncomputability

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08153331A (en) * 1994-09-29 1996-06-11 Applics:Kk Method and device for discriminating copied cd-rom
ATE354164T1 (en) * 1996-07-24 2007-03-15 Koninkl Philips Electronics Nv IMPROVEMENTS IN OPTICALLY READABLE DISCS AND DISC RECORDING DEVICE
AU3706197A (en) * 1996-08-05 1998-03-06 T.T.R. Technologies Ltd. Digital optical media authentication and copy protection method
AU7362198A (en) * 1997-05-16 1998-12-08 Imation Corp. Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor
DE69704352T2 (en) * 1997-08-28 2001-07-12 Sony Dadc Austria Ag Anif System for copying management of an optical disk
US6104679A (en) 1998-10-01 2000-08-15 T.T.R. Technologies Ltd. Method for determining an unauthorized copy of an optical disc
CN1494080A (en) * 1998-10-05 2004-05-05 �ʼҷ����ֵ������޹�˾ System used for recording information copy protection
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
GB9912312D0 (en) * 1999-05-26 1999-07-28 Dilla Limited C The copy protection of digital audio compact discs
GB0003530D0 (en) * 2000-02-15 2000-04-05 Dilla Limited C The copy protection of digital audio compact discs

Also Published As

Publication number Publication date
MXPA02010186A (en) 2004-08-19
CA2422515A1 (en) 2001-10-25
KR20030064618A (en) 2003-08-02
BR0110039A (en) 2003-12-30
JP2004501477A (en) 2004-01-15
CN100336336C (en) 2007-09-05
CA2422515C (en) 2011-05-03
EP1297651A4 (en) 2006-04-12
CN1460342A (en) 2003-12-03
AU781208B2 (en) 2005-05-12
AU4678701A (en) 2001-10-30
KR100712429B1 (en) 2007-04-27
EP1297651A2 (en) 2003-04-02

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