DE69618880D1 - Gerät zur Spurfolgefehlerdetektion eines optischen Kopfes - Google Patents

Gerät zur Spurfolgefehlerdetektion eines optischen Kopfes

Info

Publication number
DE69618880D1
DE69618880D1 DE69618880T DE69618880T DE69618880D1 DE 69618880 D1 DE69618880 D1 DE 69618880D1 DE 69618880 T DE69618880 T DE 69618880T DE 69618880 T DE69618880 T DE 69618880T DE 69618880 D1 DE69618880 D1 DE 69618880D1
Authority
DE
Germany
Prior art keywords
error detection
optical head
tracking error
tracking
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 - Lifetime
Application number
DE69618880T
Other languages
English (en)
Other versions
DE69618880T2 (de
Inventor
Teruo Fujita
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of DE69618880D1 publication Critical patent/DE69618880D1/de
Publication of DE69618880T2 publication Critical patent/DE69618880T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/0901—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 track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1367—Stepped phase plates
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
    • 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
    • G11B7/08—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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
DE69618880T 1995-09-08 1996-09-06 Gerät zur Spurfolgefehlerdetektion eines optischen Kopfes Expired - Lifetime DE69618880T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23142495A JP3549301B2 (ja) 1995-09-08 1995-09-08 光ヘッドのトラッキング誤差検出装置

Publications (2)

Publication Number Publication Date
DE69618880D1 true DE69618880D1 (de) 2002-03-14
DE69618880T2 DE69618880T2 (de) 2002-11-28

Family

ID=16923367

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69618880T Expired - Lifetime DE69618880T2 (de) 1995-09-08 1996-09-06 Gerät zur Spurfolgefehlerdetektion eines optischen Kopfes

Country Status (6)

Country Link
US (1) US5886964A (de)
EP (1) EP0762396B1 (de)
JP (1) JP3549301B2 (de)
KR (1) KR100231388B1 (de)
CN (1) CN1059284C (de)
DE (1) DE69618880T2 (de)

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JPH11144465A (ja) * 1997-11-10 1999-05-28 Texas Instr Japan Ltd 半導体記憶装置
KR100312104B1 (ko) * 1997-11-28 2002-04-06 윤종용 밸런스게인튜닝장치
TW444201B (en) * 1998-02-16 2001-07-01 Hitachi Ltd Optical head
JP3547038B2 (ja) * 1998-10-06 2004-07-28 パイオニア株式会社 光ピックアップ装置
JP2000132855A (ja) * 1998-10-27 2000-05-12 Matsushita Electric Ind Co Ltd 光情報記録再生装置
JP3307347B2 (ja) 1998-12-02 2002-07-24 松下電器産業株式会社 磁気記録装置及び光学素子
JP2001176106A (ja) * 1999-12-20 2001-06-29 Pioneer Electronic Corp ピックアップ装置とそのピックアップ装置を備えた情報記録再生装置
TWI239002B (en) * 2000-03-10 2005-09-01 Sony Corp Optical recording/reproducing apparatus, optical head apparatus, optical disc drive apparatus, tracking control method for use therein, and optical disc
US7035196B2 (en) * 2000-03-14 2006-04-25 Matsushita Electric Industrial Co., Ltd. Optical head device and optical recording and reproducing apparatus having lasers aligned in a tangential direction
JP3456579B2 (ja) 2000-04-20 2003-10-14 日本電気株式会社 光ヘッド装置および光学式情報記録再生装置
US6940676B1 (en) * 2000-06-07 2005-09-06 Quantum Corporation Triple push-pull optical tracking system
KR100754158B1 (ko) 2000-12-08 2007-09-03 삼성전자주식회사 구면수차 검출 및/또는 보정 가능한 광픽업장치
JP3672020B2 (ja) * 2000-12-18 2005-07-13 日本電気株式会社 光ヘッド装置及び光学式情報記録再生装置
US7142486B2 (en) * 2001-04-02 2006-11-28 Ricoh Company, Ltd. Signal processing method and signal processing apparatus
KR100403623B1 (ko) * 2001-04-13 2003-10-30 삼성전자주식회사 호환형 광픽업 장치
JP2002319151A (ja) 2001-04-24 2002-10-31 Sharp Corp 光ピックアップ装置
US6963522B2 (en) 2001-05-31 2005-11-08 Nec Corporation Optical head apparatus and optical information recording and reproducing apparatus
JP2003162832A (ja) 2001-09-14 2003-06-06 Matsushita Electric Ind Co Ltd 光ピックアップヘッド装置、情報記録再生装置、及び情報記録方法
JP3832323B2 (ja) 2001-11-20 2006-10-11 日本電気株式会社 光ヘッド装置及び光学式情報記録再生装置
KR20030066465A (ko) * 2002-02-05 2003-08-09 마츠시타 덴끼 산교 가부시키가이샤 트랙킹 제어 장치 및 광 디스크 장치
JP2003233918A (ja) * 2002-02-08 2003-08-22 Fujitsu Ltd 光情報処理装置
AU2003235244A1 (en) 2002-04-18 2003-11-10 Matsushita Electric Industrial Co., Ltd. Optical element, optical head, optical information recording/reproduction device, computer, video recording device, video reproduction device, server, and car navigation system
JP3977234B2 (ja) 2002-04-24 2007-09-19 シャープ株式会社 光ピックアップ
JP3826082B2 (ja) 2002-08-23 2006-09-27 シャープ株式会社 光ピックアップ装置
JP2004281026A (ja) * 2002-08-23 2004-10-07 Matsushita Electric Ind Co Ltd 光ピックアップヘッド装置及び光情報装置及び光情報再生方法
JP3799318B2 (ja) 2002-10-22 2006-07-19 株式会社日立製作所 光ピックアップおよびそれを用いた光学的情報記録装置または再生装置
JP2004253111A (ja) * 2003-01-31 2004-09-09 Sharp Corp 光ピックアップ装置
WO2004097815A1 (ja) 2003-04-25 2004-11-11 Nec Corporation 光ヘッド装置及び光学式情報記録再生装置
JP2004355790A (ja) * 2003-05-08 2004-12-16 Sharp Corp ホログラム結合体およびその製造方法、ホログラムレーザユニットならびに光ピックアップ装置
JP2005353187A (ja) 2004-06-11 2005-12-22 Nec Corp 光ヘッド装置及び光学式情報記録再生装置
EP1667128A1 (de) * 2004-12-02 2006-06-07 Deutsche Thomson-Brandt Gmbh Gerät zur Aufzeichnung von winkelmultiplexierten Vertiefungen
KR100754517B1 (ko) * 2005-01-20 2007-09-03 삼성전자주식회사 회절소자 및 이를 포함하는 광픽업장치
JPWO2006093199A1 (ja) 2005-03-02 2008-08-07 日本電気株式会社 光ヘッド装置及び光学式情報記録再生装置及び光学式情報記録再生装置の動作方法
JP2006268974A (ja) * 2005-03-24 2006-10-05 Matsushita Electric Ind Co Ltd 光半導体装置
JP4551883B2 (ja) 2005-04-28 2010-09-29 パナソニック株式会社 フォーカス制御調整方法および光ディスク装置
JP4180073B2 (ja) 2005-07-28 2008-11-12 シャープ株式会社 光ピックアップ装置
JP4859529B2 (ja) 2005-10-17 2012-01-25 三洋電機株式会社 光ピックアップ装置および光ディスク装置
JP4645410B2 (ja) 2005-10-25 2011-03-09 ソニー株式会社 光ピックアップ及び光ディスク装置
JP4941670B2 (ja) 2005-10-28 2012-05-30 日本電気株式会社 光ヘッド装置ならびに光学式情報記録／再生装置
US8045442B2 (en) 2005-11-08 2011-10-25 Nec Corporation Optical information recording/ reproducing device and optical information recording/ reproducing method
US8045432B2 (en) 2006-04-12 2011-10-25 Panasonic Corporation Optical disc device
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JP4630844B2 (ja) * 2006-05-29 2011-02-09 パナソニック株式会社 光ピックアップ装置
KR20080017807A (ko) 2006-08-22 2008-02-27 삼성전자주식회사 광픽업
WO2008023567A1 (fr) 2006-08-25 2008-02-28 Panasonic Corporation Dispositif à tête optique, élément de diffraction, dispositif d'informations optiques, ordinateur, lecteur de disque, système de navigation automobile, enregistreur à disque optique et véhicule
CN101140772B (zh) 2006-09-07 2012-10-10 松下电器产业株式会社 光学头和光盘装置
JP4106072B1 (ja) * 2006-12-18 2008-06-25 松下電器産業株式会社 光ピックアップ装置
EP1950752A1 (de) * 2007-01-24 2008-07-30 Deutsche Thomson OHG Phasenänderungsgitter für differenzierte Druck-Zug-Verfolgung
EP1950753A1 (de) * 2007-01-24 2008-07-30 Thomson Licensing S.A. Phasenänderungsgitter für differenzierte Druck-Zug-Verfolgung
JP5319978B2 (ja) 2008-07-28 2013-10-16 株式会社日立メディアエレクトロニクス 光ピックアップ装置、光ディスク装置および回折格子
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JP5274170B2 (ja) * 2008-09-12 2013-08-28 三洋電機株式会社 光ピックアップ装置
JP2011118960A (ja) 2009-12-01 2011-06-16 Sanyo Electric Co Ltd 光ピックアップ装置
JP6315548B2 (ja) * 2013-12-25 2018-04-25 株式会社ミツトヨ 光学式エンコーダ
JP6386337B2 (ja) 2014-10-23 2018-09-05 株式会社ミツトヨ 光学式エンコーダ

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Also Published As

Publication number Publication date
US5886964A (en) 1999-03-23
EP0762396B1 (de) 2002-01-30
JP3549301B2 (ja) 2004-08-04
DE69618880T2 (de) 2002-11-28
KR970017282A (ko) 1997-04-30
JPH0981942A (ja) 1997-03-28
EP0762396A1 (de) 1997-03-12
KR100231388B1 (ko) 1999-11-15
CN1059284C (zh) 2000-12-06
CN1153378A (zh) 1997-07-02

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