DE19881919T1 - Verfahren und Vorrichtung zum Erstellen von Fingerabdrücken und zum Authentifizieren verschiedener magnetischer Medien - Google Patents

Verfahren und Vorrichtung zum Erstellen von Fingerabdrücken und zum Authentifizieren verschiedener magnetischer Medien

Info

Publication number
DE19881919T1
DE19881919T1 DE19881919T DE19881919T DE19881919T1 DE 19881919 T1 DE19881919 T1 DE 19881919T1 DE 19881919 T DE19881919 T DE 19881919T DE 19881919 T DE19881919 T DE 19881919T DE 19881919 T1 DE19881919 T1 DE 19881919T1
Authority
DE
Germany
Prior art keywords
magnetic media
various magnetic
authenticating various
creating fingerprints
fingerprints
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.)
Granted
Application number
DE19881919T
Other languages
English (en)
Other versions
DE19881919B4 (de
Inventor
Ronald S Indeck
Marcel W Muller
Jun Robert E Morley
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.)
St Louis University
Washington University in St Louis WUSTL
Original Assignee
St Louis University
Washington University in St Louis WUSTL
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 St Louis University, Washington University in St Louis WUSTL filed Critical St Louis University
Publication of DE19881919T1 publication Critical patent/DE19881919T1/de
Application granted granted Critical
Publication of DE19881919B4 publication Critical patent/DE19881919B4/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • 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
    • G11B20/00876—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy wherein physical copy protection means are attached to the medium, e.g. holograms, sensors, or additional semiconductor circuitry
DE19881919T 1997-01-09 1998-01-09 Verfahren und Vorrichtung zum Erstellen von Fingerabdrücken und zum Authentifizieren verschiedener magnetischer Medien Expired - Lifetime DE19881919B4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/780,772 US5920628A (en) 1997-01-09 1997-01-09 Method and apparatus for fingerprinting and authenticating various magnetic media
US08/780,772 1997-01-09
PCT/US1998/000786 WO1998031123A1 (en) 1997-01-09 1998-01-09 Method and apparatus for authenticating magnetic media

Publications (2)

Publication Number Publication Date
DE19881919T1 true DE19881919T1 (de) 1999-12-02
DE19881919B4 DE19881919B4 (de) 2009-01-02

Family

ID=25120650

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19881919T Expired - Lifetime DE19881919B4 (de) 1997-01-09 1998-01-09 Verfahren und Vorrichtung zum Erstellen von Fingerabdrücken und zum Authentifizieren verschiedener magnetischer Medien

Country Status (5)

Country Link
US (1) US5920628A (de)
JP (1) JP2001509908A (de)
AU (1) AU6241798A (de)
DE (1) DE19881919B4 (de)
WO (1) WO1998031123A1 (de)

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Also Published As

Publication number Publication date
US5920628A (en) 1999-07-06
JP2001509908A (ja) 2001-07-24
DE19881919B4 (de) 2009-01-02
AU6241798A (en) 1998-08-03
WO1998031123A1 (en) 1998-07-16

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