ATE202422T1 - Wiedergabeverfahren und einrichtung von kompaktplatten und kompaktplattenspieler- sicherheitssystem - Google Patents

Wiedergabeverfahren und einrichtung von kompaktplatten und kompaktplattenspieler- sicherheitssystem

Info

Publication number
ATE202422T1
ATE202422T1 AT95118162T AT95118162T ATE202422T1 AT E202422 T1 ATE202422 T1 AT E202422T1 AT 95118162 T AT95118162 T AT 95118162T AT 95118162 T AT95118162 T AT 95118162T AT E202422 T1 ATE202422 T1 AT E202422T1
Authority
AT
Austria
Prior art keywords
compact disc
security system
data bits
physical
security code
Prior art date
Application number
AT95118162T
Other languages
English (en)
Inventor
Ken Kutaragi
Tetsuya Hirano
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
Application granted granted Critical
Publication of ATE202422T1 publication Critical patent/ATE202422T1/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
    • 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 OR CALCULATING; 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

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Storage Device Security (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Packaging For Recording Disks (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Communication System (AREA)
AT95118162T 1994-11-18 1995-11-17 Wiedergabeverfahren und einrichtung von kompaktplatten und kompaktplattenspieler- sicherheitssystem ATE202422T1 (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 (1)

Publication Number Publication Date
ATE202422T1 true ATE202422T1 (de) 2001-07-15

Family

ID=17690925

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95118162T ATE202422T1 (de) 1994-11-18 1995-11-17 Wiedergabeverfahren und einrichtung von kompaktplatten und kompaktplattenspieler- sicherheitssystem

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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DE69521402D1 (de) 2001-07-26
DE69521402T2 (de) 2002-05-16
EP0723216A3 (de) 1996-09-04
US6304971B1 (en) 2001-10-16
DE69535367D1 (de) 2007-02-22
US6122739A (en) 2000-09-19
EP1130591A2 (de) 2001-09-05
DE69535367T2 (de) 2007-10-18
MY115187A (en) 2003-04-30
AU716354B2 (en) 2000-02-24
KR100412779B1 (ko) 2004-06-11
JPH08147704A (ja) 1996-06-07
CA2163177A1 (en) 1996-05-19
AU3789195A (en) 1996-05-23
ES2159596T3 (es) 2001-10-16
EP0723216A2 (de) 1996-07-24
KR960019120A (ko) 1996-06-17
CN1133471A (zh) 1996-10-16
CN1122977C (zh) 2003-10-01
EP1130591B1 (de) 2007-01-10
EP1130591A3 (de) 2002-05-22
EP0723216B1 (de) 2001-06-20
CA2163177C (en) 2004-05-11
DK0723216T3 (da) 2001-10-01

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