WO2005057567A3 - Authenticable optical disc, system for authenticating an optical disc and method thereof - Google Patents

Authenticable optical disc, system for authenticating an optical disc and method thereof Download PDF

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Publication number
WO2005057567A3
WO2005057567A3 PCT/US2004/035029 US2004035029W WO2005057567A3 WO 2005057567 A3 WO2005057567 A3 WO 2005057567A3 US 2004035029 W US2004035029 W US 2004035029W WO 2005057567 A3 WO2005057567 A3 WO 2005057567A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical disc
authenticating
feature
predetermined signature
authenticable
Prior art date
Application number
PCT/US2004/035029
Other languages
French (fr)
Other versions
WO2005057567A2 (en
Inventor
Marc Brian Wisnudel
Radislav Alexandrovi Potyrailo
William Guy Morris
Original Assignee
Gen Electric
Marc Brian Wisnudel
Radislav Alexandrovi Potyrailo
William Guy Morris
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 Gen Electric, Marc Brian Wisnudel, Radislav Alexandrovi Potyrailo, William Guy Morris filed Critical Gen Electric
Priority to JP2006541177A priority Critical patent/JP2007514258A/en
Priority to DE602004011098T priority patent/DE602004011098T2/en
Priority to EP04796086A priority patent/EP1690155B1/en
Publication of WO2005057567A2 publication Critical patent/WO2005057567A2/en
Publication of WO2005057567A3 publication Critical patent/WO2005057567A3/en

Links

Classifications

    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • 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
    • G11B20/00166—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
    • G11B20/00173—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source

Abstract

An authenticable optical disc (100) and a system and method for authenticating the optical disc are provided. The optical disc comprising a reflective layer (206); an optically transparent substrate (210) disposed between the reflective layer (206) and a light incident surface of the optical disc; a data layer disposed between the substrate and the reflective layer, the data layer including a predetermined signature; and at least one measurable feature (106), wherein the at least one feature is compared to the predetermined signature for authenticating the optical disc. The method comprises the steps of preparing an optical disc with at least one optical feature (402); measuring intensity of transmitted light from the at least one optical feature (406); and comparing the measured intensity to a predetermined signature (408), wherein if the measured intensity and predetermined signature matches, access to the optical disc is granted (412).
PCT/US2004/035029 2003-11-24 2004-10-22 Authenticable optical disc, system for authenticating an optical disc and method thereof WO2005057567A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006541177A JP2007514258A (en) 2003-11-24 2004-10-22 Authenticable optical disc, optical disc authentication system and method
DE602004011098T DE602004011098T2 (en) 2003-11-24 2004-10-22 AUTHENTICABLE OPTICAL DATA CARRIER, SYSTEM FOR AUTHENTICATING AN OPTICAL DATA SUPPORT AND METHOD THEREFOR
EP04796086A EP1690155B1 (en) 2003-11-24 2004-10-22 Authenticable optical disc, system for authenticating an optical disc and method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/723,682 2003-11-24
US10/723,682 US7218589B2 (en) 2003-11-24 2003-11-24 Authenticable optical disc, system for authenticating an optical disc and method thereof

Publications (2)

Publication Number Publication Date
WO2005057567A2 WO2005057567A2 (en) 2005-06-23
WO2005057567A3 true WO2005057567A3 (en) 2005-08-11

Family

ID=34592340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/035029 WO2005057567A2 (en) 2003-11-24 2004-10-22 Authenticable optical disc, system for authenticating an optical disc and method thereof

Country Status (8)

Country Link
US (1) US7218589B2 (en)
EP (1) EP1690155B1 (en)
JP (1) JP2007514258A (en)
CN (1) CN100478826C (en)
AT (1) ATE382888T1 (en)
DE (1) DE602004011098T2 (en)
TW (1) TW200522011A (en)
WO (1) WO2005057567A2 (en)

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Also Published As

Publication number Publication date
ATE382888T1 (en) 2008-01-15
US7218589B2 (en) 2007-05-15
TW200522011A (en) 2005-07-01
CN1886710A (en) 2006-12-27
WO2005057567A2 (en) 2005-06-23
US20050111342A1 (en) 2005-05-26
DE602004011098D1 (en) 2008-02-14
DE602004011098T2 (en) 2008-12-24
CN100478826C (en) 2009-04-15
EP1690155B1 (en) 2008-01-02
JP2007514258A (en) 2007-05-31
EP1690155A2 (en) 2006-08-16

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