ATE409342T1 - Cdrom kopierschutz - Google Patents

Cdrom kopierschutz

Info

Publication number
ATE409342T1
ATE409342T1 AT02710062T AT02710062T ATE409342T1 AT E409342 T1 ATE409342 T1 AT E409342T1 AT 02710062 T AT02710062 T AT 02710062T AT 02710062 T AT02710062 T AT 02710062T AT E409342 T1 ATE409342 T1 AT E409342T1
Authority
AT
Austria
Prior art keywords
disc
read
pits
lands
series
Prior art date
Application number
AT02710062T
Other languages
English (en)
Inventor
Edward Kelley
Eric Motika
Franco Motika
Paul Motika
Original Assignee
Mediatek 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 Mediatek Inc filed Critical Mediatek Inc
Application granted granted Critical
Publication of ATE409342T1 publication Critical patent/ATE409342T1/de

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
    • G11B7/002—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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/281—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by changing the physical properties of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
    • 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
    • G11B20/00572—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
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
    • 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)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Holo Graphy (AREA)
  • Gyroscopes (AREA)
AT02710062T 2001-01-17 2002-01-16 Cdrom kopierschutz ATE409342T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/764,836 US6767695B2 (en) 2001-01-17 2001-01-17 CDROM copy protection

Publications (1)

Publication Number Publication Date
ATE409342T1 true ATE409342T1 (de) 2008-10-15

Family

ID=25071931

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02710062T ATE409342T1 (de) 2001-01-17 2002-01-16 Cdrom kopierschutz

Country Status (9)

Country Link
US (1) US6767695B2 (de)
EP (1) EP1354317B1 (de)
JP (1) JP2004523856A (de)
KR (1) KR100527557B1 (de)
CN (1) CN1219293C (de)
AT (1) ATE409342T1 (de)
DE (1) DE60229038D1 (de)
TW (1) TW569202B (de)
WO (1) WO2002058062A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275114A1 (de) * 2000-03-30 2003-01-15 Koninklijke Philips Electronics N.V. Ein verfahren zur kodierung eines bitstromes von einem binären quellsignal in einen bitstrom von einem binären kanalsignal
EP1344212B1 (de) 2000-12-14 2008-08-13 ECD Systems, Inc. Verfahren zur Authentifizierung eines optischen Aufzeichnungsmediums und ein optisches Aufzeichnungsmedium
US7716485B2 (en) * 2002-02-01 2010-05-11 Sca Ipla Holdings Inc. Systems and methods for media authentication
US20040083377A1 (en) * 2002-10-25 2004-04-29 General Electric Company System and method for digital storage media copy protection
KR100643287B1 (ko) * 2004-11-19 2006-11-10 삼성전자주식회사 플래시 메모리의 데이터 처리 장치 및 방법
US20060253722A1 (en) * 2005-04-21 2006-11-09 Nielsen Hans H Uncopyable optical media through sector errors

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7810463A (nl) * 1978-10-19 1980-04-22 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur.
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 (de) 1993-07-29 1995-02-21 Nippon Pickter Kk
US5805551A (en) 1994-04-18 1998-09-08 Matsushita Electric Industrial Co., Ltd. Method and apparatus for preventing illegal copy or illegal installation of information of optical recording medium
JPH087340A (ja) 1994-06-20 1996-01-12 Alps Electric Co Ltd 記録媒体、及び、その記録媒体を用いた光ディスク装置
EP0712012A1 (de) 1994-11-09 1996-05-15 International Business Machines Corporation Authentizitätslabel und Authentizitätsmuster mit Beugungsstruktur und Methode zu deren Herstellung
CA2165532C (en) * 1995-01-23 2005-10-04 Michael L. Mitchell System for encoding a glass master to enable detection of a counterfeit optical cd-rom
US5809006A (en) 1996-05-31 1998-09-15 Cagent Technologies, Inc. Optical disk with copy protection, and apparatus and method for recording and reproducing same
WO1998008180A2 (en) * 1996-08-05 1998-02-26 T.T.R. Technologies Ltd. Digital optical media authentication and copy protection method
US5923754A (en) 1997-05-02 1999-07-13 Compaq Computer Corporation Copy protection for recorded media

Also Published As

Publication number Publication date
KR100527557B1 (ko) 2005-11-09
WO2002058062A2 (en) 2002-07-25
US6767695B2 (en) 2004-07-27
EP1354317B1 (de) 2008-09-24
TW569202B (en) 2004-01-01
DE60229038D1 (de) 2008-11-06
WO2002058062A3 (en) 2002-12-19
KR20030071807A (ko) 2003-09-06
JP2004523856A (ja) 2004-08-05
US20020093905A1 (en) 2002-07-18
CN1219293C (zh) 2005-09-14
CN1478274A (zh) 2004-02-25
EP1354317A2 (de) 2003-10-22

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Legal Events

Date Code Title Description
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