SE9602656L - Sätt att säkerställa äktheten hos en optisk databärare - Google Patents

Sätt att säkerställa äktheten hos en optisk databärare

Info

Publication number
SE9602656L
SE9602656L SE9602656A SE9602656A SE9602656L SE 9602656 L SE9602656 L SE 9602656L SE 9602656 A SE9602656 A SE 9602656A SE 9602656 A SE9602656 A SE 9602656A SE 9602656 L SE9602656 L SE 9602656L
Authority
SE
Sweden
Prior art keywords
data carrier
logical
digital information
identity
authenticity
Prior art date
Application number
SE9602656A
Other languages
English (en)
Other versions
SE9602656D0 (sv
Inventor
Jan Barchan
Original Assignee
Ifunga Test Equipment Bv
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 Ifunga Test Equipment Bv filed Critical Ifunga Test Equipment Bv
Priority to SE9602656A priority Critical patent/SE9602656L/sv
Publication of SE9602656D0 publication Critical patent/SE9602656D0/sv
Priority to SE9603763A priority patent/SE514352C2/sv
Priority to EP97927540A priority patent/EP0907952B1/en
Priority to KR1019997000014A priority patent/KR100336253B1/ko
Priority to AT97927540T priority patent/ATE196561T1/de
Priority to US09/214,632 priority patent/US6226770B1/en
Priority to JP50511298A priority patent/JP3955634B2/ja
Priority to ES97927540T priority patent/ES2152099T3/es
Priority to DE69703155T priority patent/DE69703155T2/de
Priority to PCT/SE1997/000957 priority patent/WO1998001852A1/en
Priority to TW086109370A priority patent/TW444194B/zh
Publication of SE9602656L publication Critical patent/SE9602656L/sv
Priority to JP2004213015A priority patent/JP4142618B2/ja

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
    • 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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • G11B7/00375—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00458—Verification, i.e. checking data during or after recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
SE9602656A 1996-07-05 1996-07-05 Sätt att säkerställa äktheten hos en optisk databärare SE9602656L (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9602656A SE9602656L (sv) 1996-07-05 1996-07-05 Sätt att säkerställa äktheten hos en optisk databärare
SE9603763A SE514352C2 (sv) 1996-07-05 1996-10-14 Sätt att förse en optisk databärare med identitetsinformation
PCT/SE1997/000957 WO1998001852A1 (en) 1996-07-05 1997-06-03 Method of providing an optical data carrier with identity information
AT97927540T ATE196561T1 (de) 1996-07-05 1997-06-03 Verfahren zum versehen eines optischen datenträgers mit identitätsinformationen
KR1019997000014A KR100336253B1 (ko) 1996-07-05 1997-06-03 광학 데이터 캐리어에 식별 정보를 제공하는 방법
EP97927540A EP0907952B1 (en) 1996-07-05 1997-06-03 Method of providing an optical data carrier with identity information
US09/214,632 US6226770B1 (en) 1996-07-05 1997-06-03 Method of providing an optical data carrier with identity information
JP50511298A JP3955634B2 (ja) 1996-07-05 1997-06-03 光データ記憶媒体に識別情報を提供する方法
ES97927540T ES2152099T3 (es) 1996-07-05 1997-06-03 Procedimientos para proporcionar un soporte optico de datos con informacion sobre identidad
DE69703155T DE69703155T2 (de) 1996-07-05 1997-06-03 Verfahren zum versehen eines optischen datenträgers mit identitätsinformationen
TW086109370A TW444194B (en) 1996-07-05 1997-07-03 Method of providing an optical data carrier with identity information
JP2004213015A JP4142618B2 (ja) 1996-07-05 2004-07-21 光データ記憶媒体の識別情報をチェックする方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9602656A SE9602656L (sv) 1996-07-05 1996-07-05 Sätt att säkerställa äktheten hos en optisk databärare

Publications (2)

Publication Number Publication Date
SE9602656D0 SE9602656D0 (sv) 1996-07-05
SE9602656L true SE9602656L (sv) 1998-01-06

Family

ID=20403285

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9602656A SE9602656L (sv) 1996-07-05 1996-07-05 Sätt att säkerställa äktheten hos en optisk databärare

Country Status (1)

Country Link
SE (1) SE9602656L (sv)

Also Published As

Publication number Publication date
SE9602656D0 (sv) 1996-07-05

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