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; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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 (xx)
AU (1) AU3706197A (xx)
IL (1) IL128369A0 (xx)
WO (1) WO1998008180A2 (xx)

Families Citing this family (31)

* 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
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
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
ATE467210T1 (de) * 2000-04-07 2010-05-15 Sony Dadc Austria Ag Kopieverhinderungssytem für optische platten
BR0110039A (pt) * 2000-04-14 2003-12-30 Midbar Tech Ltd Método e aparelho para proteção de dados gravados em um meio de armazenamento original contra cópia não autorizada, e, meio de armazenamento de dados
US6638593B2 (en) * 2000-06-30 2003-10-28 Verification Technologies, Inc. Copy-protected optical media and method of manufacture thereof
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
CN1244107C (zh) 2000-07-11 2006-03-01 松下电器产业株式会社 信息记录介质的制做方法,信息记录装置,信息记录方法,信息再生装置,和信息再生方法
ES2267865T3 (es) 2000-11-14 2007-03-16 Koninklijke Philips Electronics N.V. Soporte de registro con filigrana.
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
JP2004517428A (ja) 2000-12-22 2004-06-10 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 再生装置、送信装置、符号化情報を形成且つ送信する方法、及び、符号化情報を再生する方法
US6767695B2 (en) * 2001-01-17 2004-07-27 International Business Machines Corporation CDROM copy protection
AU2002344416B2 (en) * 2001-10-31 2009-01-08 Sony Corporation Data recording method, recorder, and data reproducing method and device
US6952479B2 (en) 2001-11-27 2005-10-04 Macrovision Europe Limited Dynamic copy protection of optical media
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
US7826636B2 (en) * 2004-01-23 2010-11-02 Koninklijke Philips Electronics N.V. Visual watermark in both data area and inner-ring of record carrier
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823210A (en) * 1984-08-13 1989-04-18 Verbatim Corporation Copy protected disk
EP0178813B1 (en) * 1984-10-01 1993-08-18 Matsushita Electric Industrial Co., Ltd. Method and apparatus for encoding binary data
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 (xx) * 1993-07-29 1995-02-21 Nippon Pickter Kk
US5400319A (en) * 1993-10-06 1995-03-21 Digital Audio Disc Corporation CD-ROM with machine-readable I.D. code
US5454039A (en) * 1993-12-06 1995-09-26 International Business Machines Corporation Software-efficient pseudorandom function and the use thereof for encryption
TW309612B (xx) * 1994-09-22 1997-07-01 Nippon Bickter Kk
US5822291A (en) * 1995-03-23 1998-10-13 Zoom Television, Inc. Mass storage element and drive unit therefor
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
WO1998008180A2 (en) 1998-02-26
EP1076902A4 (en) 2001-05-23
AU3706197A (en) 1998-03-06
WO1998008180A3 (en) 1998-08-20
EP1076902A2 (en) 2001-02-21

Similar Documents

Publication Publication Date Title
IL128369A0 (en) Digital optical media authentication and copy protection method
EP0714204A3 (en) Method of protection against illegal exposure and copying in a digital video system and control method therefor
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
AU3588197A (en) Optimization methods for the insertion, protection and detection of digital watermarks in digitized data
EP0763936A3 (en) Illegal sight / copy protection method and apparatus for television broadcast system
IL119566A0 (en) Digital audio system and method for its use
IL123663A0 (en) Document authentication system and method
HK1068000A1 (en) Apparatus for processing digital data and copy protection method
IL123871A0 (en) Optical digital media recording and reproduction system
HK1026051A1 (en) Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function.
HK1026050A1 (en) Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function.
EP0863019A4 (en) PRINTER AND IMAGE RECORDING METHOD
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
EP0762758A3 (en) Digital video copy protection
AU3206397A (en) Method and apparatus for two-level copy protection
GB2345361B (en) Copy protection system and method
AU4287999A (en) Method and system for authenticating digital optical media
AU5908098A (en) Apparatus for monitoring and preventing unauthorized copying of digital data
EP1028391A4 (en) METHOD AND SYSTEM FOR VERIFYING DIGITAL SIGNATURES
AU4425597A (en) Improved filtration system and method
EP0715416A3 (en) System and method deinterleaving digital data
GB9723663D0 (en) System and method for blocking a lens