DE69317844T2 - Optische Abtastvorrichtung - Google Patents

Optische Abtastvorrichtung

Info

Publication number
DE69317844T2
DE69317844T2 DE69317844T DE69317844T DE69317844T2 DE 69317844 T2 DE69317844 T2 DE 69317844T2 DE 69317844 T DE69317844 T DE 69317844T DE 69317844 T DE69317844 T DE 69317844T DE 69317844 T2 DE69317844 T2 DE 69317844T2
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
DE69317844T
Other languages
English (en)
Other versions
DE69317844D1 (de
Inventor
Naoharu Yanagawa
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
Publication of DE69317844D1 publication Critical patent/DE69317844D1/de
Application granted granted Critical
Publication of DE69317844T2 publication Critical patent/DE69317844T2/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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
DE69317844T 1992-09-30 1993-09-22 Optische Abtastvorrichtung Expired - Fee Related DE69317844T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4262126A JPH06111344A (ja) 1992-09-30 1992-09-30 光ピックアップ装置

Publications (2)

Publication Number Publication Date
DE69317844D1 DE69317844D1 (de) 1998-05-14
DE69317844T2 true DE69317844T2 (de) 1998-09-17

Family

ID=17371416

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69317844T Expired - Fee Related DE69317844T2 (de) 1992-09-30 1993-09-22 Optische Abtastvorrichtung

Country Status (4)

Country Link
US (1) US5610883A (de)
EP (1) EP0590851B1 (de)
JP (1) JPH06111344A (de)
DE (1) DE69317844T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997024716A1 (en) * 1995-12-27 1997-07-10 Philips Electronics N.V. Device for scanning an optically readable record carrier
JPH11501445A (ja) * 1995-12-27 1999-02-02 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 光学的に読取り可能な記録担体を走査する装置
WO1997024717A1 (en) * 1995-12-27 1997-07-10 Philips Electronics N.V. Device for scanning an optically readable record carrier
JPH10116427A (ja) * 1996-10-09 1998-05-06 Sony Corp サーボ信号処理装置及び光ディスク装置
US6292441B1 (en) * 1997-04-16 2001-09-18 Matsushita Electric Industrial Co., Ltd. Optical head device, optical information apparatus, and method for detecting focus error signal
TW444201B (en) * 1998-02-16 2001-07-01 Hitachi Ltd Optical head
US6057163A (en) * 1998-04-28 2000-05-02 Turner Designs Luminescence and fluorescence quantitation system
US6339565B1 (en) * 1999-03-31 2002-01-15 Lsi Logic Corporation Non-linear center-error generator for DVD servo control
US20060067714A1 (en) * 2002-12-12 2006-03-30 Koninklijke Philips Electronics, N.V. Bit detector having partitioned photo detector
JP2004220683A (ja) 2003-01-14 2004-08-05 Funai Electric Co Ltd 光ディスク再生装置と同装置に適用される光検出信号のレベル調整方法
CN1961363A (zh) * 2004-06-01 2007-05-09 皇家飞利浦电子股份有限公司 在光学存储系统中消除径向对聚焦的串扰
CN101461001A (zh) * 2006-06-01 2009-06-17 皇家飞利浦电子股份有限公司 优化聚焦串扰消除
JP5635309B2 (ja) * 2010-06-18 2014-12-03 株式会社ニューフレアテクノロジー 検査装置および検査方法
KR101286634B1 (ko) * 2012-01-13 2013-07-22 도시바삼성스토리지테크놀러지코리아 주식회사 광 검출 소자 및 이를 적용하는 광 픽업 장치 및 광 디스크 드라이브
CN104239719B (zh) * 2014-09-19 2017-06-13 中国人民解放军海军航空工程学院 系统误差下基于双重模糊拓扑的编队目标航迹关联算法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074204A (en) * 1976-11-22 1978-02-14 Van Alstine Audio Systems, Inc. Equalizing amplifier
JPH0756699B2 (ja) * 1985-09-25 1995-06-14 株式会社日立製作所 焦点位置制御装置
JPS6282525A (ja) * 1985-10-08 1987-04-16 Toshiba Corp 光学ヘツド
US5189651A (en) * 1986-05-12 1993-02-23 Pioneer Electronic Corporation Optical system in magneto-optical recording and reproducing device
JPH0276134A (ja) * 1988-09-13 1990-03-15 Mitsubishi Electric Corp 光学式ヘッド装置
JP2657413B2 (ja) * 1989-03-03 1997-09-24 パイオニア株式会社 光ヘッド

Also Published As

Publication number Publication date
EP0590851B1 (de) 1998-04-08
DE69317844D1 (de) 1998-05-14
US5610883A (en) 1997-03-11
JPH06111344A (ja) 1994-04-22
EP0590851A1 (de) 1994-04-06

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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