EP1297651A4 - Prevention of cd-audio piracy using sub-code channels - Google Patents

Prevention of cd-audio piracy using sub-code channels

Info

Publication number
EP1297651A4
EP1297651A4 EP01919729A EP01919729A EP1297651A4 EP 1297651 A4 EP1297651 A4 EP 1297651A4 EP 01919729 A EP01919729 A EP 01919729A EP 01919729 A EP01919729 A EP 01919729A EP 1297651 A4 EP1297651 A4 EP 1297651A4
Authority
EP
European Patent Office
Prior art keywords
prevention
sub
code channels
piracy
audio
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Withdrawn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
EP01919729A
Other languages
German (de)
French (fr)
Other versions
EP1297651A2 (en
Inventor
Ran Alcalay
Patrice Sinquin
Philippe Selve
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.)
Rovi Solutions Ltd
Original Assignee
Macrovision Europe 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 Macrovision Europe Ltd filed Critical Macrovision Europe Ltd
Priority claimed from PCT/IL2001/000295 external-priority patent/WO2001080546A2/en
Publication of EP1297651A2 publication Critical patent/EP1297651A2/en
Publication of EP1297651A4 publication Critical patent/EP1297651A4/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Withdrawn legal-status Critical Current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
    • G11B20/00188—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
EP01919729A 2000-04-14 2001-03-29 Prevention of cd-audio piracy using sub-code channels Withdrawn EP1297651A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US549820 1990-07-09
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 (2)

Publication Number Publication Date
EP1297651A2 EP1297651A2 (en) 2003-04-02
EP1297651A4 true EP1297651A4 (en) 2006-04-12

Family

ID=24194491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01919729A Withdrawn EP1297651A4 (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

Citations (6)

* 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
WO1998052114A1 (en) * 1997-05-16 1998-11-19 Imation Corp. Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor
EP0899733A1 (en) * 1997-08-28 1999-03-03 Sony DADC Austria AG Optical disc copy management system
WO2000068945A1 (en) * 1999-05-11 2000-11-16 Macrovision Corporation Secure compact disk and player
WO2000074053A1 (en) * 1999-05-26 2000-12-07 Macrovision Europe Limited The copy protection of digital audio compact discs
WO2001061695A1 (en) * 2000-02-15 2001-08-23 Macrovision Corporation The copy protection of digital audio compact discs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2232818C (en) * 1996-07-24 2006-06-06 Philips Electronics N.V. Improvements in and relating to optically readable discs and disc recording apparatus
EP1076902A4 (en) * 1996-08-05 2001-05-23 Ttr Technologies Ltd Digital optical media authentication and copy protection method
US6104679A (en) 1998-10-01 2000-08-15 T.T.R. Technologies Ltd. Method for determining an unauthorized copy of an optical disc
PL209566B1 (en) * 1998-10-05 2011-09-30 Koninkl Philips Electronics Nv Safety system for protecting recorded data against copying them

Patent Citations (6)

* 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
WO1998052114A1 (en) * 1997-05-16 1998-11-19 Imation Corp. Arrangement for preventing use of unauthorized duplicates of a data storage medium using subcode and method therefor
EP0899733A1 (en) * 1997-08-28 1999-03-03 Sony DADC Austria AG Optical disc copy management system
WO2000068945A1 (en) * 1999-05-11 2000-11-16 Macrovision Corporation Secure compact disk and player
WO2000074053A1 (en) * 1999-05-26 2000-12-07 Macrovision Europe Limited The copy protection of digital audio compact discs
WO2001061695A1 (en) * 2000-02-15 2001-08-23 Macrovision Corporation The copy protection of digital audio compact discs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31) *
WATKINSON J R: "Subcodes explained", ELECTRONICS & WIRELESS WORLD, REED BUSINESS PUBLISHING, SUTTON, SURREY, GB, vol. 92, no. 1607, September 1986 (1986-09-01), pages 26 - 30, XP002087131 *

Also Published As

Publication number Publication date
MXPA02010186A (en) 2004-08-19
CN1460342A (en) 2003-12-03
CA2422515A1 (en) 2001-10-25
BR0110039A (en) 2003-12-30
IL152251A0 (en) 2003-05-29
EP1297651A2 (en) 2003-04-02
KR20030064618A (en) 2003-08-02
CN100336336C (en) 2007-09-05
AU4678701A (en) 2001-10-30
AU781208B2 (en) 2005-05-12
CA2422515C (en) 2011-05-03
JP2004501477A (en) 2004-01-15
KR100712429B1 (en) 2007-04-27

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Owner name: MACROVISION EUROPE LIMITED

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