WO2003017202A3 - Systems and methods for media authentication - Google Patents

Systems and methods for media authentication Download PDF

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Publication number
WO2003017202A3
WO2003017202A3 PCT/US2002/026458 US0226458W WO03017202A3 WO 2003017202 A3 WO2003017202 A3 WO 2003017202A3 US 0226458 W US0226458 W US 0226458W WO 03017202 A3 WO03017202 A3 WO 03017202A3
Authority
WO
WIPO (PCT)
Prior art keywords
copy
media
unauthorized
original
digital
Prior art date
Application number
PCT/US2002/026458
Other languages
French (fr)
Other versions
WO2003017202A2 (en
Inventor
Andrew R Lee
James Albert Merkle Jr
Richard B Levine
Daniel G Howard
Original Assignee
Ecd Systems Inc
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 Ecd Systems Inc filed Critical Ecd Systems Inc
Priority to EP02757245A priority Critical patent/EP1421584A2/en
Priority to CA2457834A priority patent/CA2457834C/en
Priority to AU2002323274A priority patent/AU2002323274C1/en
Publication of WO2003017202A2 publication Critical patent/WO2003017202A2/en
Publication of WO2003017202A3 publication Critical patent/WO2003017202A3/en

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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
    • G11B20/0092—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
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy

Abstract

A method and system for authenticating a digital optical medium, such as a CD-ROM, determine whether the medium is an unauthorized copy, or the original. The original media is created, or altered, so as to contain anomalous locations from which the transfer of data is accomplished at different rates than a standard digital copy would exhibit. One implementation of the process involves timing analysis of the differences in data transfer rates, and does not necessarily require the retrying of data reads, nor does the process require the media to exhibit fatal errors, as in conventional approaches. The process can be employed in systems that control access to unauthorized copies, or may be used for other informative purposes. Theft, distribution, and piracy of digital content on optical media, such as computer software (also games, video, audio, e-book content), is often accomplished by copying it directly to another disc using commonly available copy tools and recordable optical media, or the replication of media to another mass manufactured disc. The present invention, which helps to irrefutably identify a unit of optical media as the original, and can correspondingly identify any copy made by any currently available means as such a copy, may prevent an unauthorized individual from making use of any unauthorized copies. This offers significant advantages to content creators who wish to protect their products.
PCT/US2002/026458 2001-08-21 2002-08-20 Systems and methods for media authentication WO2003017202A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02757245A EP1421584A2 (en) 2001-08-21 2002-08-20 Systems and methods for media authentication
CA2457834A CA2457834C (en) 2001-08-21 2002-08-20 Systems and methods for media authentication
AU2002323274A AU2002323274C1 (en) 2001-08-21 2002-08-20 Systems and methods for media authentication

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US31395201P 2001-08-21 2001-08-21
US60,313,952 2001-08-21
US34050601P 2001-12-14 2001-12-14
US60/340,506 2001-12-14
US34907502P 2002-01-16 2002-01-16
US60/349,075 2002-01-16
US10/062,400 2002-02-01
US10/062,400 US7562396B2 (en) 2001-08-21 2002-02-01 Systems and methods for media authentication

Publications (2)

Publication Number Publication Date
WO2003017202A2 WO2003017202A2 (en) 2003-02-27
WO2003017202A3 true WO2003017202A3 (en) 2003-11-27

Family

ID=27490283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/026458 WO2003017202A2 (en) 2001-08-21 2002-08-20 Systems and methods for media authentication

Country Status (5)

Country Link
US (2) US7562396B2 (en)
EP (1) EP1421584A2 (en)
AU (1) AU2002323274C1 (en)
CA (1) CA2457834C (en)
WO (1) WO2003017202A2 (en)

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Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30) *

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CA2457834C (en) 2014-02-04
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US20030046545A1 (en) 2003-03-06
WO2003017202A2 (en) 2003-02-27
AU2002323274B2 (en) 2008-11-06
US7562396B2 (en) 2009-07-14
US8095992B2 (en) 2012-01-10
CA2457834A1 (en) 2003-02-27
US20100125910A1 (en) 2010-05-20

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