BR0110039A - Método e aparelho para proteção de dados gravados em um meio de armazenamento original contra cópia não autorizada, e, meio de armazenamento de dados - Google Patents

Método e aparelho para proteção de dados gravados em um meio de armazenamento original contra cópia não autorizada, e, meio de armazenamento de dados

Info

Publication number
BR0110039A
BR0110039A BR0110039-4A BR0110039A BR0110039A BR 0110039 A BR0110039 A BR 0110039A BR 0110039 A BR0110039 A BR 0110039A BR 0110039 A BR0110039 A BR 0110039A
Authority
BR
Brazil
Prior art keywords
data
storage medium
original storage
recorded
standard
Prior art date
Application number
BR0110039-4A
Other languages
English (en)
Inventor
Ran Alcalay
Patrice Sinquin
Philippe Selve
Original Assignee
Midbar Tech 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 Ltd filed Critical Midbar Tech Ltd
Priority claimed from PCT/IL2001/000295 external-priority patent/WO2001080546A2/en
Publication of BR0110039A publication Critical patent/BR0110039A/pt

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)

Abstract

"MéTODO E APARELHO PARA PROTEçãO DE DADOS GRAVADOS EM UM MEIO DE ARMAZENAMENTO ORIGINAL CONTRA CóPIA NãO AUTORIZADA, E, MEIO DE ARMAZENAMENTO DE DADOS". Um método para proteção de dados gravados em um meio de armazenamento original (20) contra cópia usando um dispositivo de leitura de dados não autorizados. Os dados são codificados de acordo com a Norma Padrão 908 da Comissão Eletrotécnica Internacional. Uma porção dos dados codificados é alterada para introduzir uma modificação em um canal Q de subcódigo dos dados, de modo que os dados alterados são inconsistentes com uma implementação da Norma Padrão 908, usada no dispositivo de leitura de dados, mas não impede a reprodução dos dados que se seguem à gravação dos mesmos. Os dados, incluindo os dados alterados, são gravados no meio de armazenamento original, pelo que uma aplicação que reproduz os dados gravados funciona de uma maneira substancialmente não afetada pela alteração dos dados, mas um erro substancialmente irrecuperável ocorre na cópia não autorizada do meio de armazenamento original.
BR0110039-4A 2000-04-14 2001-03-29 Método e aparelho para proteção de dados gravados em um meio de armazenamento original contra cópia não autorizada, e, meio de armazenamento de dados BR0110039A (pt)

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
BR0110039A true BR0110039A (pt) 2003-12-30

Family

ID=24194491

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0110039-4A BR0110039A (pt) 2000-04-14 2001-03-29 Método e aparelho para proteção de dados gravados em um meio de armazenamento original contra cópia não autorizada, e, meio de armazenamento de dados

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)

* 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 (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)

* Cited by examiner, † Cited by third party
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
JP4435872B2 (ja) 1996-07-24 2010-03-24 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 光ディスクに関する改良及びディスク記録装置
EP1076902A4 (en) * 1996-08-05 2001-05-23 Ttr Technologies Ltd DIGITAL OPTICAL MEDIA AUTHENTICATION AND COPY PROTECTION PROCEDURE
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
ES2155230T3 (es) * 1997-08-28 2001-05-01 Sony Dadc Austria Ag Sistema para gestionar el copiado de un disco optico.
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
WO2000068945A1 (en) * 1999-05-11 2000-11-16 Macrovision Corporation Secure compact disk and 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
EP1297651A2 (en) 2003-04-02
KR20030064618A (ko) 2003-08-02
IL152251A0 (en) 2003-05-29
MXPA02010186A (es) 2004-08-19
CN100336336C (zh) 2007-09-05
AU4678701A (en) 2001-10-30
JP2004501477A (ja) 2004-01-15
CA2422515A1 (en) 2001-10-25
KR100712429B1 (ko) 2007-04-27
AU781208B2 (en) 2005-05-12
EP1297651A4 (en) 2006-04-12
CN1460342A (zh) 2003-12-03
CA2422515C (en) 2011-05-03

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Free format text: MACROVISION EUROPE LTD. (GB)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO DA RPI 2016 DE 25/08/2009.