IL128369A0 - Digital optical media authentication and copy protection method - Google Patents

Digital optical media authentication and copy protection method

Info

Publication number
IL128369A0
IL128369A0 IL12836997A IL12836997A IL128369A0 IL 128369 A0 IL128369 A0 IL 128369A0 IL 12836997 A IL12836997 A IL 12836997A IL 12836997 A IL12836997 A IL 12836997A IL 128369 A0 IL128369 A0 IL 128369A0
Authority
IL
Israel
Prior art keywords
optical media
protection method
copy protection
digital optical
media authentication
Prior art date
Application number
IL12836997A
Other languages
English (en)
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 IL128369A0 publication Critical patent/IL128369A0/xx

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)
  • Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Probability & Statistics with Applications (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
IL12836997A 1996-08-05 1997-08-05 Digital optical media authentication and copy protection method IL128369A0 (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
IL128369A0 true IL128369A0 (en) 2000-01-31

Family

ID=26714832

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12836997A IL128369A0 (en) 1996-08-05 1997-08-05 Digital optical media authentication and copy protection method

Country Status (4)

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

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6425098B1 (en) 1998-10-20 2002-07-23 Midbar Tech (1998) Ltd. Prevention of disk piracy
US6988206B1 (en) * 1998-10-20 2006-01-17 Macrovision Europe Limited Prevention of CD-audio piracy using sub-code channels
AU4238400A (en) * 1999-04-12 2000-11-14 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
JP2003530657A (ja) * 2000-04-07 2003-10-14 ソニー デーアーデーツェー オーストリア アクチェンゲゼルシャフト 光ディスクのコピー防止システム
JP2004501477A (ja) * 2000-04-14 2004-01-15 ミッドバー・テック・リミテッド サブコードチャンネルを用いたｃｄオーディオの著作権侵害防止方法
US20050050343A1 (en) * 2000-06-30 2005-03-03 Selinfreund Richard H. Storage media access control method and system
US7486790B1 (en) * 2000-06-30 2009-02-03 Verification Technologies, Inc. Method and apparatus for controlling access to storage media
US6638593B2 (en) * 2000-06-30 2003-10-28 Verification Technologies, Inc. Copy-protected optical media and method of manufacture thereof
US7124944B2 (en) 2000-06-30 2006-10-24 Verification Technologies, Inc. Product packaging including digital data
AU2001269488A1 (en) 2000-07-11 2002-01-21 Matsushita Electric Industrial Co., Ltd. Information recording medium, information recording apparatus, information recording method, information reproduction apparatus and information reproduction method
AU2002220704A1 (en) 2000-11-14 2002-05-27 Koninklijke Philips Electronics N.V. Record carrier with watermark
AU2002221006B2 (en) * 2000-11-27 2007-10-18 Rovi Europe Limited A copy protected DVD disc and method for producing and validating same
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
KR100898131B1 (ko) * 2001-10-31 2009-05-19 소니 가부시끼 가이샤 데이터의 기록 방법 및 기록 장치 및 데이터의 재생 방법및 생성 장치
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
US7391691B2 (en) 2003-08-29 2008-06-24 General Electric Company Method for facilitating copyright protection in digital media and digital media made thereby
US20050147379A1 (en) 2003-12-24 2005-07-07 Home Box Office, A Delaware Corporation Personalization of mass-duplicated media
JP4825136B2 (ja) * 2004-01-23 2011-11-30 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 記録担体のデータ領域及び内側リング領域の両方における視覚的ウォーターマーク
US9135948B2 (en) 2009-07-03 2015-09-15 Microsoft Technology Licensing, Llc Optical medium with added descriptor to reduce counterfeiting
CN102576570A (zh) * 2009-07-17 2012-07-11 安全内容储存联合有限责任公司 简单的非自主对等媒体克隆检测

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3587535T2 (de) * 1984-10-01 1994-01-20 Matsushita Electric Ind Co Ltd Verfahren und Vorrichtung zur numerischen Datenkodierung.
US5231662A (en) * 1989-08-01 1993-07-27 Tulip Computers International B.V. Method and device for enciphering data to be transferred and for deciphering the enciphered data, and a computer system comprising such a device
JP2776209B2 (ja) * 1993-07-22 1998-07-16 日本ビクター株式会社 光ディスク及び情報記録再生装置
TW241360B (de) * 1993-07-29 1995-02-21 Nippon Pickter Kk
US5454039A (en) * 1993-12-06 1995-09-26 International Business Machines Corporation Software-efficient pseudorandom function and the use thereof for encryption
TW309612B (de) * 1994-09-22 1997-07-01 Nippon Bickter Kk
US5699434A (en) * 1995-12-12 1997-12-16 Hewlett-Packard Company Method of inhibiting copying of digital data

Also Published As

Publication number Publication date
AU3706197A (en) 1998-03-06
WO1998008180A3 (en) 1998-08-20
WO1998008180A2 (en) 1998-02-26
EP1076902A4 (de) 2001-05-23
EP1076902A2 (de) 2001-02-21

Similar Documents

Publication Publication Date Title
IL128369A0 (en) Digital optical media authentication and copy protection method
EP0714204A3 (de) Verfahren zum Schutz vor unerlaubtem Kopieren und Sehen in einem digitalen Fernsehsystem und Steuerverfahren dazu
AU4269497A (en) Self-decrypting digital information system and method
AUPO323496A0 (en) Digital message encryption and authentication
AU2245197A (en) Multipurpose digital recording method and apparatus and media therefor
EP0763936A3 (de) Schutzverfahren und -anlage gegen unerlaubtes Sehen/Kopieren für digitales Fernsehsystem
IL119566A0 (en) Digital audio system and method for its use
IL123663A0 (en) Document authentication system and method
GB9406613D0 (en) Encryption method and system
IL130047A0 (en) Information security method and apparatus
IL123871A0 (en) Optical digital media recording and reproduction system
AU3206397A (en) Method and apparatus for two-level copy protection
HUP9902077A3 (en) Digital anti-counterfeiting software method and apparatus
AU1400197A (en) Digital image encoding and decoding method and digital image encoding and decoding device using the same
AU4287999A (en) Method and system for authenticating digital optical media
GB2345361B (en) Copy protection system and method
AU5908098A (en) Apparatus for monitoring and preventing unauthorized copying of digital data
AU1984799A (en) System and method for copy protection for digital signals
EP1028391A4 (de) Verfahren und system zur überprüfung digitaler unterschriften
AU4425597A (en) Improved filtration system and method
EP0715416A3 (de) Einrichtung und Verfahren zur Entschachtelung von digitalen Daten
GB9723663D0 (en) System and method for blocking a lens
HUP9902497A3 (en) Optical recording method and apparatus using this method
GB2318005B (en) Efficient digital filter and method using coefficient precombining
GB2329749B (en) Digital recording systems and methods