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GB2355575A - The copy protection of digital audio compact discs - Google Patents

The copy protection of digital audio compact discs

Info

Publication number
GB2355575A
GB2355575A GB0102129A GB0102129A GB2355575A GB 2355575 A GB2355575 A GB 2355575A GB 0102129 A GB0102129 A GB 0102129A GB 0102129 A GB0102129 A GB 0102129A GB 2355575 A GB2355575 A GB 2355575A
Authority
GB
United Kingdom
Prior art keywords
data
audio
digital audio
read
incorrect
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.)
Granted
Application number
GB0102129A
Other versions
GB0102129D0 (en
GB2355575B (en
Inventor
Roger Edwards
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10854243&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2355575(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Macrovision Europe Ltd filed Critical Macrovision Europe Ltd
Publication of GB0102129D0 publication Critical patent/GB0102129D0/en
Publication of GB2355575A publication Critical patent/GB2355575A/en
Application granted granted Critical
Publication of GB2355575B publication Critical patent/GB2355575B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B20/0092—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
    • G11B20/00086—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
    • G11B20/00572—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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Digital audio compact discs (CD-DA) which carry audio can be played and read by CD-ROM drives. Thus the data on the CD-DA may be read into a computer by way of its ROM drive and copied onto another disc. The increasing availability of recorders able to write to CD's poses an enormous threat to the music industry. To copy protect a digital audio compact disc (6), where control data useable by a data reader is encoded on the disc, selected control data is rendered incorrect and/or inaccurate. The incorrect data is either inaccessible to, or not generally read by, an audio player such that a legitimate audio CD which has been copy protected can be played normally on an audio player. However, the incorrect data renders the CD unplayable by a data reader.
GB0102129A 1999-05-26 2000-05-25 The copy protection of digital audio compact discs Expired - Fee Related GB2355575B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9912312.7A GB9912312D0 (en) 1999-05-26 1999-05-26 The copy protection of digital audio compact discs
PCT/GB2000/002011 WO2000074053A1 (en) 1999-05-26 2000-05-25 The copy protection of digital audio compact discs

Publications (3)

Publication Number Publication Date
GB0102129D0 GB0102129D0 (en) 2001-03-14
GB2355575A true GB2355575A (en) 2001-04-25
GB2355575B GB2355575B (en) 2003-07-23

Family

ID=10854243

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9912312.7A Ceased GB9912312D0 (en) 1999-05-26 1999-05-26 The copy protection of digital audio compact discs
GB0102129A Expired - Fee Related GB2355575B (en) 1999-05-26 2000-05-25 The copy protection of digital audio compact discs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9912312.7A Ceased GB9912312D0 (en) 1999-05-26 1999-05-26 The copy protection of digital audio compact discs

Country Status (13)

Country Link
EP (1) EP1101222A1 (en)
JP (1) JP3405980B2 (en)
KR (1) KR100558342B1 (en)
CN (2) CN1156839C (en)
AU (1) AU773875B2 (en)
BR (1) BR0006159A (en)
CA (1) CA2338826A1 (en)
GB (2) GB9912312D0 (en)
MX (1) MXPA01000950A (en)
NZ (1) NZ509615A (en)
PL (1) PL345732A1 (en)
RU (1) RU2249861C2 (en)
WO (1) WO2000074053A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2386245A (en) * 2002-03-08 2003-09-10 First 4 Internet Ltd Copy protection system
GB2390735A (en) * 2002-07-11 2004-01-14 H T A Hightech Applic Holdings Controlling access to optical disc tracks.

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6988206B1 (en) 1998-10-20 2006-01-17 Macrovision Europe Limited Prevention of CD-audio piracy using sub-code channels
US6425098B1 (en) 1998-10-20 2002-07-23 Midbar Tech (1998) Ltd. Prevention of disk piracy
IL131545A0 (en) * 1999-08-23 2001-01-28 Ttr Technologies Ltd Copy-protected digital audio compact disc and method and system for producing same
IL133236A0 (en) * 1999-11-30 2001-03-19 Ttr Technologies Ltd Copy-protected digital audio compact disc and method and system for producing same
GB2357165B (en) * 1999-12-02 2004-06-16 Internat Federation Of The Pho Copyright protection system and method
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
MXPA02010186A (en) * 2000-04-14 2004-08-19 Macrovision Europ Ltd Prevention of cd-audio piracy using sub-code channels.
PL363776A1 (en) * 2000-07-28 2004-11-29 Macrovision Europe Limited Copy protection for optical discs
ES2180412B1 (en) * 2001-02-23 2004-06-01 Mpo Iberica, S.A. ANTI-COPY PROTECTION SYSTEM FOR COMPACT AUDIO DISCS.
EP1393305A4 (en) * 2001-05-21 2005-11-23 Sunncomm Inc Apparatus and method for digital content concealment in a storage medium recorded using a recording device
GB0304015D0 (en) 2003-02-21 2003-03-26 Macrovision Europ Ltd Copy protection for applications
DE10140237A1 (en) * 2001-08-22 2003-03-27 Brainshield Technologies Inc Copy protection device
GB0124723D0 (en) * 2001-10-15 2001-12-05 Macrovision Corp Improvements in or relating to the copy protection of optical discs
ES2221506B1 (en) * 2001-10-16 2005-10-01 Sonopress Ibermemory, S.A. CD-AUDIO RECORDING PROCEDURE TO AVOID YOUR COPY.
ES2211258B1 (en) * 2001-11-13 2005-05-16 Sonopress Ibermemory, S.A. CD-AUDIO RECORDING METHOD TO AVOID YOUR COPY.
WO2003042988A1 (en) 2001-11-15 2003-05-22 Sony Corporation System and method for controlling the use and duplication of digital content distributed on removable media
US6952479B2 (en) * 2001-11-27 2005-10-04 Macrovision Europe Limited Dynamic copy protection of optical media
TWI251822B (en) 2001-12-06 2006-03-21 Macrovision Eurpoe Ltd A copy-protected compact disc and method for producing same
JP3467701B1 (en) 2002-03-18 2003-11-17 株式会社 ディーディーエヌ CD-ROM with illegal copy protection function
JP2005523545A (en) 2002-04-18 2005-08-04 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 Copy detection and protection method using non-standard TOC input
US7530116B2 (en) 2002-06-06 2009-05-05 Macrovision Corporation Controlling the downloading and recording of digital data
US7161885B2 (en) 2002-12-06 2007-01-09 Macrovision Corporation Copy-protected compact disc and method for producing same
GB0301700D0 (en) 2003-01-24 2003-02-26 Macrovision Corp The copy protection of optical discs
GB0304016D0 (en) 2003-02-21 2003-03-26 Macrovision Europ Ltd The transmission of information
KR100974449B1 (en) * 2003-04-24 2010-08-10 엘지전자 주식회사 How to manage copy protection information on optical discs
GB2402804B (en) 2003-06-13 2006-10-11 Macrovision Europ Ltd Copying copy protected optical discs
JP2005038488A (en) 2003-07-18 2005-02-10 Teac Corp Optical disk device
EP1883069A3 (en) * 2003-10-08 2008-02-13 Macrovision Corporation Secure access and copy protection management system
US20050078822A1 (en) * 2003-10-08 2005-04-14 Eyal Shavit Secure access and copy protection management system
GB2407693B (en) * 2003-11-03 2006-03-15 Macrovision Europ Ltd Improvements in or relating to the formatting of optical discs
DE10355404B3 (en) * 2003-11-25 2005-03-10 Ok Media Disc Service Gmbh & C Copy protection method for DVD-video data carrier using interference structure which can be jumped by interpretation of inserted jump command bit sequences
US8059937B2 (en) 2004-02-19 2011-11-15 Rovi Solutions Corporation Relating to the copy protection of optical discs
GB0403719D0 (en) 2004-02-19 2004-03-24 Macrovision Europ Ltd Improvements in or relating to the defeat of the copy protection of optical discs
GB2414337B (en) 2004-05-19 2008-10-29 Macrovision Europ Ltd The copy protection of optical discs
US7706661B2 (en) * 2004-05-19 2010-04-27 Macrovision Corporation Copy protection of optical discs using redundant control data
US7701825B2 (en) 2005-06-17 2010-04-20 Macrovision Corporation Apparatus for and a method of authenticating recording media
EP1780707A1 (en) * 2005-09-09 2007-05-02 Sony DADC Austria AG Recordable optical disc
US7609944B2 (en) 2006-07-05 2009-10-27 Macrovision Corporation Copy protection of optical discs
US8254761B2 (en) 2007-03-07 2012-08-28 Rovi Solutions Corporation Copying digital content by emulating playing of a recording medium by a player
US8930718B2 (en) 2007-03-28 2015-01-06 Rovi Solutions Corporation Apparatus for and a method of providing content data
US7755980B2 (en) 2007-04-04 2010-07-13 Rovi Solutions Corporation Copy protection of optical discs
GB2449647B (en) 2007-05-29 2010-01-13 Fortium Technologies Ltd Optical discs
US8189998B2 (en) 2008-01-16 2012-05-29 Rovi Solutions Corporation Apparatus for and a method of copy-protecting a content carrying recording medium
GB2457482B (en) * 2008-02-14 2012-10-03 Fortium Technologys Ltd Copy protection system for optical discs

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111321A (en) * 1985-11-11 1987-05-22 Onken:Kk Specific constitution for disk format and its recording method
US5418852A (en) * 1992-03-18 1995-05-23 Fujitsu Limited Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus
US5596639A (en) * 1993-07-26 1997-01-21 Elonex Ip Holdings Ltd. Cd-prom
WO1998052194A1 (en) * 1997-05-16 1998-11-19 Imation Corp. Arrangement and method for preventing use of unauthorized duplicates of data storage media using address information
JPH113568A (en) * 1997-06-12 1999-01-06 Victor Co Of Japan Ltd Disk, discriminating method and device thereof and reproducing device thereof
EP0984346A1 (en) * 1998-09-02 2000-03-08 Hitachi Europe Limited Copy protection apparatus and method

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EP0711479A4 (en) * 1993-07-26 1996-10-02 Elonex Technologies Inc ENCRYPTION SYSTEM FOR A CD PROM
US5832088A (en) 1994-08-08 1998-11-03 Sony Corporation Method and apparatus for preventing data copying from a disk using data lengths too large for a pirate medium
JPH09106625A (en) * 1995-10-06 1997-04-22 Victor Co Of Japan Ltd Optical recording medium and apparatus for reproducing it
DE69737346T2 (en) * 1996-07-24 2007-10-31 Koninklijke Philips Electronics N.V. IMPROVEMENTS ON OPTICALLY READABLE PLATES AND PLATE RECORDING DEVICE
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
ATE199990T1 (en) * 1997-08-28 2001-04-15 Sony Dadc Austria Ag SYSTEM FOR COPY MANAGEMENT OF AN OPTICAL DISK
US6256738B1 (en) 1998-10-20 2001-07-03 Midbar Tech (1998) Ltd. CLV carrier copy protection system
IL127091A (en) 1998-11-16 2002-09-12 Midbar Tech 1998 Ltd Anti-counterfeiting compact disc

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111321A (en) * 1985-11-11 1987-05-22 Onken:Kk Specific constitution for disk format and its recording method
US5418852A (en) * 1992-03-18 1995-05-23 Fujitsu Limited Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus
US5596639A (en) * 1993-07-26 1997-01-21 Elonex Ip Holdings Ltd. Cd-prom
WO1998052194A1 (en) * 1997-05-16 1998-11-19 Imation Corp. Arrangement and method for preventing use of unauthorized duplicates of data storage media using address information
JPH113568A (en) * 1997-06-12 1999-01-06 Victor Co Of Japan Ltd Disk, discriminating method and device thereof and reproducing device thereof
EP0984346A1 (en) * 1998-09-02 2000-03-08 Hitachi Europe Limited Copy protection apparatus and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2386245A (en) * 2002-03-08 2003-09-10 First 4 Internet Ltd Copy protection system
GB2386245B (en) * 2002-03-08 2005-12-07 First 4 Internet Ltd Data protection system
GB2390735A (en) * 2002-07-11 2004-01-14 H T A Hightech Applic Holdings Controlling access to optical disc tracks.
GB2390735B (en) * 2002-07-11 2004-10-13 H T A Hightech Applic Holdings Access controlled optical disc and method therefor
AU2003250397B2 (en) * 2002-07-11 2008-07-10 H.T.A High Tech Applications Holdings Limited Access controlled optical disc and method therefor

Also Published As

Publication number Publication date
BR0006159A (en) 2001-04-17
AU5088500A (en) 2000-12-18
GB9912312D0 (en) 1999-07-28
KR20010053603A (en) 2001-06-25
WO2000074053A1 (en) 2000-12-07
CA2338826A1 (en) 2000-12-07
KR100558342B1 (en) 2006-03-10
RU2249861C2 (en) 2005-04-10
MXPA01000950A (en) 2002-06-04
PL345732A1 (en) 2002-01-02
AU773875B2 (en) 2004-06-10
CN1156839C (en) 2004-07-07
JP2003500789A (en) 2003-01-07
NZ509615A (en) 2003-04-29
EP1101222A1 (en) 2001-05-23
JP3405980B2 (en) 2003-05-12
HK1037421A1 (en) 2002-02-08
GB0102129D0 (en) 2001-03-14
CN1310841A (en) 2001-08-29
GB2355575B (en) 2003-07-23
CN1523600A (en) 2004-08-25

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120816 AND 20120822

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180525