DE69220898D1 - Optisches Abtastgerät - Google Patents

Optisches Abtastgerät

Info

Publication number
DE69220898D1
DE69220898D1 DE69220898T DE69220898T DE69220898D1 DE 69220898 D1 DE69220898 D1 DE 69220898D1 DE 69220898 T DE69220898 T DE 69220898T DE 69220898 T DE69220898 T DE 69220898T DE 69220898 D1 DE69220898 D1 DE 69220898D1
Authority
DE
Germany
Prior art keywords
optical scanner
scanner
optical
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 - Fee Related
Application number
DE69220898T
Other languages
English (en)
Other versions
DE69220898T2 (de
Inventor
Takanori Maeda
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Application granted granted Critical
Publication of DE69220898D1 publication Critical patent/DE69220898D1/de
Publication of DE69220898T2 publication Critical patent/DE69220898T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69220898T 1991-12-03 1992-10-02 Optisches Abtastgerät Expired - Fee Related DE69220898T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31901291A JP3145751B2 (ja) 1991-12-03 1991-12-03 光ピックアップ装置

Publications (2)

Publication Number Publication Date
DE69220898D1 true DE69220898D1 (de) 1997-08-21
DE69220898T2 DE69220898T2 (de) 1998-04-02

Family

ID=18105518

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69220898T Expired - Fee Related DE69220898T2 (de) 1991-12-03 1992-10-02 Optisches Abtastgerät

Country Status (4)

Country Link
US (1) US5355361A (de)
EP (1) EP0545526B1 (de)
JP (1) JP3145751B2 (de)
DE (1) DE69220898T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0829855B1 (de) * 1992-02-19 2001-11-14 Sony Corporation Optisches Aufzeichnungsmedium, Aufzeichnungs- und Wiedergabemethode, und Methode zur Erzeugung eines Spurfolgefehlersignals
US5633854A (en) * 1992-02-19 1997-05-27 Sony Corporation Methods and apparatus for reproducing data recorded on an optical recording medium
JP3450483B2 (ja) * 1995-01-06 2003-09-22 パイオニア株式会社 光学式記録媒体再生装置
US5729512A (en) * 1996-07-03 1998-03-17 Zen Research N.V. Magnification and tracking error correction system for multiple track optical disk reader
US5959953A (en) * 1996-07-03 1999-09-28 Zen Research Nv Methods and apparatus for performing cross-talk correction in a multi-track optical disk reader based on magnification error
US6430125B1 (en) 1996-07-03 2002-08-06 Zen Research (Ireland), Ltd. Methods and apparatus for detecting and correcting magnification error in a multi-beam optical disk drive
US6229771B1 (en) 1998-10-09 2001-05-08 Zen Research (Ireland), Ltd. Method and apparatus for generating focus error signals in a multi-beam optical disk drive
KR20070029791A (ko) * 2004-06-03 2007-03-14 코닌클리케 필립스 일렉트로닉스 엔.브이. 롬 마크를 포함하는 기록매체와 이 롬 마크를 검색하는재생장치
JP2009245536A (ja) * 2008-03-31 2009-10-22 Fujifilm Corp 光記録ディスクの記録・再生方法、情報が記録された光記録ディスクの製造方法および光記録ディスクの記録装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841710B2 (ja) * 1973-03-16 1983-09-13 ソニー株式会社 ジヨウホウシンゴウキロクホウホウ
US4353077A (en) * 1979-09-10 1982-10-05 News Log International, Inc. Optical floppy disc data storage and retrieval techniques
GB2120000B (en) * 1982-04-28 1986-04-09 Tdk Corp Magnetic recording and reproduction
DE3484902D1 (de) * 1983-10-12 1991-09-12 Drexler Tech Optisches datensystem mit vierfachdichte.
US5224082A (en) * 1988-02-26 1993-06-29 Fujitsu Limited Method for detecting tracking error in optical disk system and its optical system devices thereof
JPH0785336B2 (ja) * 1989-05-29 1995-09-13 パイオニア株式会社 記録情報の読取り装置
JPH0770073B2 (ja) * 1989-08-04 1995-07-31 松下電器産業株式会社 光学ヘッド
US5081617A (en) * 1990-09-24 1992-01-14 Creo Products Inc. Optical system for simultaneous reading of multiple data tracks

Also Published As

Publication number Publication date
DE69220898T2 (de) 1998-04-02
EP0545526A1 (de) 1993-06-09
JPH05159350A (ja) 1993-06-25
EP0545526B1 (de) 1997-07-16
US5355361A (en) 1994-10-11
JP3145751B2 (ja) 2001-03-12

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee