DE69521402T2 - Wiedergabeverfahren und Einrichtung von Kompaktplatten und Kompaktplattenspieler-Sicherheitssystem - Google Patents

Wiedergabeverfahren und Einrichtung von Kompaktplatten und Kompaktplattenspieler-Sicherheitssystem

Info

Publication number
DE69521402T2
DE69521402T2 DE69521402T DE69521402T DE69521402T2 DE 69521402 T2 DE69521402 T2 DE 69521402T2 DE 69521402 T DE69521402 T DE 69521402T DE 69521402 T DE69521402 T DE 69521402T DE 69521402 T2 DE69521402 T2 DE 69521402T2
Authority
DE
Germany
Prior art keywords
security system
setup
data bits
compact
disc player
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.)
Expired - Lifetime
Application number
DE69521402T
Other languages
English (en)
Other versions
DE69521402D1 (de
Inventor
Ken Kutaragi
Tetsuya Hirano
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.)
Sony Interactive Entertainment Inc
Original Assignee
Sony Computer Entertainment 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 Sony Computer Entertainment Inc filed Critical Sony Computer Entertainment Inc
Publication of DE69521402D1 publication Critical patent/DE69521402D1/de
Application granted granted Critical
Publication of DE69521402T2 publication Critical patent/DE69521402T2/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
    • 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
    • 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
    • G11B20/00601—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 wherein properties of tracks are altered, e.g., by changing the wobble pattern or the track pitch, or by adding interruptions or eccentricity
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • 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
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
DE69521402T 1994-11-18 1995-11-17 Wiedergabeverfahren und Einrichtung von Kompaktplatten und Kompaktplattenspieler-Sicherheitssystem Expired - Lifetime DE69521402T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6285390A JPH08147704A (ja) 1994-11-18 1994-11-18 ディスク状記録媒体、ディスク再生方法及び再生装置

Publications (2)

Publication Number Publication Date
DE69521402D1 DE69521402D1 (de) 2001-07-26
DE69521402T2 true DE69521402T2 (de) 2002-05-16

Family

ID=17690925

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69521402T Expired - Lifetime DE69521402T2 (de) 1994-11-18 1995-11-17 Wiedergabeverfahren und Einrichtung von Kompaktplatten und Kompaktplattenspieler-Sicherheitssystem
DE69535367T Expired - Lifetime DE69535367T2 (de) 1994-11-18 1995-11-17 Vorrichtung und Verfahren zum Decodieren eines optischen Signals

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69535367T Expired - Lifetime DE69535367T2 (de) 1994-11-18 1995-11-17 Vorrichtung und Verfahren zum Decodieren eines optischen Signals

Country Status (12)

Country Link
US (2) US6122739A (de)
EP (2) EP0723216B1 (de)
JP (1) JPH08147704A (de)
KR (1) KR100412779B1 (de)
CN (1) CN1122977C (de)
AT (1) ATE202422T1 (de)
AU (1) AU716354B2 (de)
CA (1) CA2163177C (de)
DE (2) DE69521402T2 (de)
DK (1) DK0723216T3 (de)
ES (1) ES2159596T3 (de)
MY (1) MY115187A (de)

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Also Published As

Publication number Publication date
DE69535367T2 (de) 2007-10-18
MY115187A (en) 2003-04-30
CA2163177A1 (en) 1996-05-19
CN1122977C (zh) 2003-10-01
EP0723216A3 (de) 1996-09-04
JPH08147704A (ja) 1996-06-07
ES2159596T3 (es) 2001-10-16
EP1130591B1 (de) 2007-01-10
CA2163177C (en) 2004-05-11
KR960019120A (ko) 1996-06-17
DE69521402D1 (de) 2001-07-26
ATE202422T1 (de) 2001-07-15
EP1130591A2 (de) 2001-09-05
EP1130591A3 (de) 2002-05-22
DK0723216T3 (da) 2001-10-01
KR100412779B1 (ko) 2004-06-11
DE69535367D1 (de) 2007-02-22
US6304971B1 (en) 2001-10-16
EP0723216B1 (de) 2001-06-20
US6122739A (en) 2000-09-19
EP0723216A2 (de) 1996-07-24
CN1133471A (zh) 1996-10-16
AU3789195A (en) 1996-05-23
AU716354B2 (en) 2000-02-24

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