ATE108041T1 - Optische platte und einheit. - Google Patents

Optische platte und einheit.

Info

Publication number
ATE108041T1
ATE108041T1 AT88900126T AT88900126T ATE108041T1 AT E108041 T1 ATE108041 T1 AT E108041T1 AT 88900126 T AT88900126 T AT 88900126T AT 88900126 T AT88900126 T AT 88900126T AT E108041 T1 ATE108041 T1 AT E108041T1
Authority
AT
Austria
Prior art keywords
rom
area
disk
rewritable
optical disk
Prior art date
Application number
AT88900126T
Other languages
English (en)
Inventor
Tadao Sony Corporation Yoshida
Original Assignee
Sony Corp
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 Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE108041T1 publication Critical patent/ATE108041T1/de

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
    • 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
    • G11B20/00108—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein original, non-rewritable record carriers are recognised by trying to erase recorded data
    • 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
    • G11B20/00659—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a control step which is implemented as an executable file stored on 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
    • G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
    • G11B20/00688—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that a usable copy of recorded data can be made on another medium
    • 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
    • G11B20/10—Digital recording or reproducing
    • 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
    • G11B7/00745—Sectoring or header formats within a track
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B2020/1259—Formatting, e.g. arrangement of data block or words on the record carriers on discs with ROM/RAM areas

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Storage Device Security (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Head (AREA)
AT88900126T 1986-12-27 1987-12-21 Optische platte und einheit. ATE108041T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61315061A JP2771808B2 (ja) 1986-12-27 1986-12-27 記録媒体

Publications (1)

Publication Number Publication Date
ATE108041T1 true ATE108041T1 (de) 1994-07-15

Family

ID=18060962

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88900126T ATE108041T1 (de) 1986-12-27 1987-12-21 Optische platte und einheit.

Country Status (7)

Country Link
US (1) US4975898A (de)
EP (1) EP0294489B1 (de)
JP (1) JP2771808B2 (de)
KR (1) KR960000444B1 (de)
AT (1) ATE108041T1 (de)
DE (1) DE3750165T2 (de)
WO (1) WO1988005203A1 (de)

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Also Published As

Publication number Publication date
EP0294489B1 (de) 1994-06-29
US4975898A (en) 1990-12-04
JPS63167474A (ja) 1988-07-11
DE3750165D1 (de) 1994-08-04
EP0294489A4 (en) 1992-06-03
KR890700256A (ko) 1989-03-10
JP2771808B2 (ja) 1998-07-02
WO1988005203A1 (fr) 1988-07-14
EP0294489A1 (de) 1988-12-14
KR960000444B1 (ko) 1996-01-06
DE3750165T2 (de) 1994-11-03

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Legal Events

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UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee