CA2422515C - Prevention of cd-audio piracy using sub-code channels - Google Patents
Prevention of cd-audio piracy using sub-code channels Download PDFInfo
- Publication number
- CA2422515C CA2422515C CA2422515A CA2422515A CA2422515C CA 2422515 C CA2422515 C CA 2422515C CA 2422515 A CA2422515 A CA 2422515A CA 2422515 A CA2422515 A CA 2422515A CA 2422515 C CA2422515 C CA 2422515C
- Authority
- CA
- Canada
- Prior art keywords
- data
- audio
- session
- medium
- sub
- 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.)
- Expired - Fee Related
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (3)
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 |
US09/549,820 | 2000-04-14 | ||
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 |
---|---|
CA2422515A1 CA2422515A1 (en) | 2001-10-25 |
CA2422515C true CA2422515C (en) | 2011-05-03 |
Family
ID=24194491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2422515A Expired - Fee Related CA2422515C (en) | 2000-04-14 | 2001-03-29 | Prevention of cd-audio piracy using sub-code channels |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1297651A4 (pt) |
JP (1) | JP2004501477A (pt) |
KR (1) | KR100712429B1 (pt) |
CN (1) | CN100336336C (pt) |
AU (1) | AU781208B2 (pt) |
BR (1) | BR0110039A (pt) |
CA (1) | CA2422515C (pt) |
IL (1) | IL152251A0 (pt) |
MX (1) | MXPA02010186A (pt) |
Families Citing this family (3)
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 (ko) * | 2008-06-05 | 2011-02-14 | (주)시공사 | 재활용 목재를 이용한 건축 내장용 조립패널 |
US20100214893A1 (en) * | 2009-02-25 | 2010-08-26 | Aylward Adrian R | Copy protection using complexity and uncomputability |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08153331A (ja) * | 1994-09-29 | 1996-06-11 | Applics:Kk | コピーcd−rom判別方法および装置 |
DE69737346T2 (de) * | 1996-07-24 | 2007-10-31 | Koninklijke Philips Electronics N.V. | Verbesserungen an optisch lesbaren platten und plattenaufzeichnungsgerät |
IL128369A0 (en) * | 1996-08-05 | 2000-01-31 | Ttr Technologies Ltd | Digital optical media authentication and copy protection method |
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 |
DE69704352T2 (de) * | 1997-08-28 | 2001-07-12 | Sony Dadc Austria Ag Anif | System zur Kopierverwaltung einer optischen Platte |
US6104679A (en) | 1998-10-01 | 2000-08-15 | T.T.R. Technologies Ltd. | Method for determining an unauthorized copy of an optical disc |
HU225000B1 (en) * | 1998-10-05 | 2006-05-29 | Koninkl Philips Electronics Nv | Copy protection of recorded information, as well as player, recorder and method of recording information |
DE60008870T2 (de) * | 1999-05-11 | 2005-04-21 | Macrovision Corp | Verfahren zum Aufzeichnen und Wiedergeben von einer CD, und CD Spieler |
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 |
-
2001
- 2001-03-29 CN CNB018111858A patent/CN100336336C/zh not_active Expired - Fee Related
- 2001-03-29 JP JP2001576673A patent/JP2004501477A/ja active Pending
- 2001-03-29 CA CA2422515A patent/CA2422515C/en not_active Expired - Fee Related
- 2001-03-29 KR KR1020027013784A patent/KR100712429B1/ko not_active IP Right Cessation
- 2001-03-29 AU AU46787/01A patent/AU781208B2/en not_active Ceased
- 2001-03-29 BR BR0110039-4A patent/BR0110039A/pt not_active IP Right Cessation
- 2001-03-29 IL IL15225101A patent/IL152251A0/xx unknown
- 2001-03-29 MX MXPA02010186A patent/MXPA02010186A/es active IP Right Grant
- 2001-03-29 EP EP01919729A patent/EP1297651A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
MXPA02010186A (es) | 2004-08-19 |
JP2004501477A (ja) | 2004-01-15 |
IL152251A0 (en) | 2003-05-29 |
AU4678701A (en) | 2001-10-30 |
CA2422515A1 (en) | 2001-10-25 |
EP1297651A4 (en) | 2006-04-12 |
EP1297651A2 (en) | 2003-04-02 |
KR100712429B1 (ko) | 2007-04-27 |
BR0110039A (pt) | 2003-12-30 |
CN1460342A (zh) | 2003-12-03 |
AU781208B2 (en) | 2005-05-12 |
KR20030064618A (ko) | 2003-08-02 |
CN100336336C (zh) | 2007-09-05 |
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KR100701236B1 (ko) | 복사 방지 디지털 오디오 콤팩트 디스크, 및 이를제조하는 방법 및 시스템 | |
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US20110069592A1 (en) | Access controlled optical disc and method therefor | |
US6988206B1 (en) | Prevention of CD-audio piracy using sub-code channels | |
US7685641B1 (en) | Copy-protected digital audio compact disc, and method and system for producing same | |
CA2422515C (en) | Prevention of cd-audio piracy using sub-code channels | |
AU2005200838A1 (en) | Prevention of CD-audio piracy using sub-code channels | |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20180329 |