EP1076902A4 - Digitale optische media-authentifizierung udn kopieschutzverfahren - Google Patents

Digitale optische media-authentifizierung udn kopieschutzverfahren

Info

Publication number
EP1076902A4
EP1076902A4 EP97933829A EP97933829A EP1076902A4 EP 1076902 A4 EP1076902 A4 EP 1076902A4 EP 97933829 A EP97933829 A EP 97933829A EP 97933829 A EP97933829 A EP 97933829A EP 1076902 A4 EP1076902 A4 EP 1076902A4
Authority
EP
European Patent Office
Prior art keywords
optical media
class
standard
symbols
codes
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Withdrawn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
EP97933829A
Other languages
English (en)
French (fr)
Other versions
EP1076902A2 (de
Inventor
Bruce David Sollish
Dennis Howe
Henry Marshall Israel
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.)
TTR TECHNOLOGIES Ltd
Original Assignee
TTR TECHNOLOGIES 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
Application filed by TTR TECHNOLOGIES Ltd filed Critical TTR TECHNOLOGIES Ltd
Publication of EP1076902A2 publication Critical patent/EP1076902A2/de
Publication of EP1076902A4 publication Critical patent/EP1076902A4/de
Withdrawn legal-status Critical Current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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00579—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 data encoding, e.g., modulation schemes violating run-length constraints, causing excessive DC content, or involving uncommon codewords or sync patterns
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G06K7/1465—Methods for optical code recognition the method including quality enhancement steps using several successive scans of the optical code
    • 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a 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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—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 physical format of the recording medium
    • 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
    • G11B20/14—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
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Probability & Statistics with Applications (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
EP97933829A 1996-08-05 1997-08-05 Digitale optische media-authentifizierung udn kopieschutzverfahren Withdrawn EP1076902A4 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US689209 1985-01-07
US68920996A 1996-08-05 1996-08-05
US3808097P 1997-03-06 1997-03-06
US38080P 1997-03-06
PCT/IL1997/000266 WO1998008180A2 (en) 1996-08-05 1997-08-05 Digital optical media authentication and copy protection method

Publications (2)

Publication Number Publication Date
EP1076902A2 EP1076902A2 (de) 2001-02-21
EP1076902A4 true EP1076902A4 (de) 2001-05-23

Family

ID=26714832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97933829A Withdrawn EP1076902A4 (de) 1996-08-05 1997-08-05 Digitale optische media-authentifizierung udn kopieschutzverfahren

Country Status (4)

Country Link
EP (1) EP1076902A4 (de)
AU (1) AU3706197A (de)
IL (1) IL128369A0 (de)
WO (1) WO1998008180A2 (de)

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KR100257538B1 (ko) * 1997-07-14 2000-06-01 구자홍 복사 방지용 광디스크의 신호 기록방법 및 이 기록방법을 이용한 광디스크의 복제방지방법
IL122393A0 (en) * 1997-12-01 1998-06-15 Ttr Technologies Ltd A code word for use in digital optical media and a method of generation thereof
JP4147607B2 (ja) * 1998-03-13 2008-09-10 松下電器産業株式会社 補助スクランブル／デスクランブル方法および装置
US6684199B1 (en) * 1998-05-20 2004-01-27 Recording Industry Association Of America Method for minimizing pirating and/or unauthorized copying and/or unauthorized access of/to data on/from data media including compact discs and digital versatile discs, and system and data media for same
US6029259A (en) * 1998-06-15 2000-02-22 T.T.R. Technologies Ltd. Method and system for authenticating digital optical media
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
WO2000062293A1 (en) * 1999-04-12 2000-10-19 Macrovision Corporation Copy protection signature for compact disks
WO2001080546A2 (en) * 1999-08-09 2001-10-25 Midbar Tech Ltd. Prevention of cd-audio piracy using sub-code channels
IL131545A0 (en) * 1999-08-23 2001-01-28 Ttr Technologies Ltd Copy-protected digital audio compact disc and method and system for producing same
CN100468546C (zh) * 2000-04-07 2009-03-11 索尼达德克奥地利股份公司 光盘拷贝防止系统
AU781208B2 (en) * 2000-04-14 2005-05-12 Rovi Europe Limited Prevention of CD-audio piracy using sub-code channels
US7486790B1 (en) * 2000-06-30 2009-02-03 Verification Technologies, Inc. Method and apparatus for controlling access to storage media
US20050050343A1 (en) * 2000-06-30 2005-03-03 Selinfreund Richard H. Storage media access control method and system
US7124944B2 (en) 2000-06-30 2006-10-24 Verification Technologies, Inc. Product packaging including digital data
US6638593B2 (en) * 2000-06-30 2003-10-28 Verification Technologies, Inc. Copy-protected optical media and method of manufacture thereof
WO2002005277A2 (en) * 2000-07-11 2002-01-17 Matsushita Electric Industrial Co., Ltd. Information recording medium, information recording apparatus, information recording method, information reproduction apparatus and information reproduction method
BR0107606A (pt) 2000-11-14 2002-10-15 Koninkl Philips Electronics Nv Portador de registros, dispositivo para leitura de um portador de registros, e, processo e dispositivo para prover uma marca d'água em um portador de registros
RU2004115730A (ru) * 2000-11-27 2005-02-27 Макровижн Юроп Лимитед (Gb) Диск dvd с защитой от копирования и способ его производства и проверки достоверности
DE60135377D1 (de) 2000-12-14 2008-09-25 Edc Systems Inc Verfahren zur Authentifizierung eines optischen Aufzeichnungsmediums und ein optisches Aufzeichnungsmedium
EP1346359A1 (de) 2000-12-22 2003-09-24 Koninklijke Philips Electronics N.V. Wiedergabesanordnung, übertragungsanordnung, verfahren zur erstellung und übertragung von kodierter information und verfahren zur wiedergabe codierter information
US6767695B2 (en) * 2001-01-17 2004-07-27 International Business Machines Corporation CDROM copy protection
US7562396B2 (en) 2001-08-21 2009-07-14 Ecd Systems, Inc. Systems and methods for media authentication
RU2300149C2 (ru) * 2001-10-31 2007-05-27 Сони Корпорейшн Способ записи/воспроизведения данных
US6952479B2 (en) 2001-11-27 2005-10-04 Macrovision Europe Limited Dynamic copy protection of optical media
US7643393B2 (en) 2001-12-12 2010-01-05 Ecd Systems, Inc. Systems and methods for optical media modification
US7368221B2 (en) 2002-06-17 2008-05-06 Verification Technologies, Inc. Changing light absorption by disruption of conjugation
US20040083377A1 (en) * 2002-10-25 2004-04-29 General Electric Company System and method for digital storage media copy protection
CA2515189C (en) * 2003-02-05 2014-08-05 Ecd Systems, Inc. Systems and methods for media authentication
CA2427023A1 (en) * 2003-04-29 2004-10-29 Iline Entertainment Inc. Method and apparatus for the protection of fixed media
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Also Published As

Publication number Publication date
IL128369A0 (en) 2000-01-31
EP1076902A2 (de) 2001-02-21
WO1998008180A3 (en) 1998-08-20
WO1998008180A2 (en) 1998-02-26
AU3706197A (en) 1998-03-06

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