HK1043425B - Optical recording medium, optical recording medium producing apparatus and optical recording medium producing method - Google Patents

Optical recording medium, optical recording medium producing apparatus and optical recording medium producing method Download PDF

Info

Publication number
HK1043425B
HK1043425B HK02102427.7A HK02102427A HK1043425B HK 1043425 B HK1043425 B HK 1043425B HK 02102427 A HK02102427 A HK 02102427A HK 1043425 B HK1043425 B HK 1043425B
Authority
HK
Hong Kong
Prior art keywords
area
recording medium
pits
pit string
depth
Prior art date
Application number
HK02102427.7A
Other languages
German (de)
English (en)
French (fr)
Chinese (zh)
Other versions
HK1043425A1 (en
Inventor
Atsushi Yamaguchi
Masahiro Kato
Eiji Muramatsu
Seiro Oshima
Takao Tagiri
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Publication of HK1043425A1 publication Critical patent/HK1043425A1/en
Publication of HK1043425B publication Critical patent/HK1043425B/en

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
    • 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
    • G11B20/00594—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 the shape of recording marks is altered, e.g. the depth, width, or length of pits
    • 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
    • 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
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
HK02102427.7A 2000-07-25 2002-04-02 Optical recording medium, optical recording medium producing apparatus and optical recording medium producing method HK1043425B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000224216A JP3922424B2 (ja) 2000-07-25 2000-07-25 光学式記録媒体、光学式記録媒体製造装置及び光学式記録媒体製造方法
JP2000224216 2000-07-25

Publications (2)

Publication Number Publication Date
HK1043425A1 HK1043425A1 (en) 2002-09-13
HK1043425B true HK1043425B (en) 2009-06-12

Family

ID=18718212

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02102427.7A HK1043425B (en) 2000-07-25 2002-04-02 Optical recording medium, optical recording medium producing apparatus and optical recording medium producing method

Country Status (9)

Country Link
US (2) US6813237B2 (enExample)
EP (1) EP1176587B1 (enExample)
JP (1) JP3922424B2 (enExample)
KR (1) KR100614142B1 (enExample)
CN (2) CN100350470C (enExample)
AT (1) ATE421750T1 (enExample)
DE (1) DE60137476D1 (enExample)
HK (1) HK1043425B (enExample)
TW (1) TW513711B (enExample)

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Also Published As

Publication number Publication date
US6813237B2 (en) 2004-11-02
CN1241186C (zh) 2006-02-08
EP1176587A2 (en) 2002-01-30
ATE421750T1 (de) 2009-02-15
CN1707640A (zh) 2005-12-14
JP3922424B2 (ja) 2007-05-30
KR100614142B1 (ko) 2006-08-25
HK1043425A1 (en) 2002-09-13
TW513711B (en) 2002-12-11
US20040114493A1 (en) 2004-06-17
DE60137476D1 (de) 2009-03-12
CN1362707A (zh) 2002-08-07
KR20020009491A (ko) 2002-02-01
EP1176587B1 (en) 2009-01-21
CN100350470C (zh) 2007-11-21
JP2002042347A (ja) 2002-02-08
US20020015379A1 (en) 2002-02-07
EP1176587A3 (en) 2004-02-04
US7092351B2 (en) 2006-08-15

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