DE60119881D1 - Optisches Abtastgerät und und Fokussierungssteuerungsverfahren - Google Patents

Optisches Abtastgerät und und Fokussierungssteuerungsverfahren

Info

Publication number
DE60119881D1
DE60119881D1 DE60119881T DE60119881T DE60119881D1 DE 60119881 D1 DE60119881 D1 DE 60119881D1 DE 60119881 T DE60119881 T DE 60119881T DE 60119881 T DE60119881 T DE 60119881T DE 60119881 D1 DE60119881 D1 DE 60119881D1
Authority
DE
Germany
Prior art keywords
control method
scanning device
optical scanning
focusing control
focusing
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
DE60119881T
Other languages
English (en)
Other versions
DE60119881T2 (de
Inventor
Masakazu Ogasawara
Ikuya Kikuchi
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 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
Priority claimed from JP2000388541A external-priority patent/JP4177551B2/ja
Priority claimed from JP2001027301A external-priority patent/JP2002230801A/ja
Application filed by Pioneer Corp filed Critical Pioneer Corp
Application granted granted Critical
Publication of DE60119881D1 publication Critical patent/DE60119881D1/de
Publication of DE60119881T2 publication Critical patent/DE60119881T2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/133—Shape of individual detector elements
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
    • 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
    • G11B7/0909—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 by astigmatic methods
    • 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
    • G11B7/0912—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 by push-pull method
    • 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
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B7/08—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
    • G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE60119881T 2000-12-21 2001-12-21 Optisches Abtastgerät und und Fokussierungssteuerungsverfahren Expired - Lifetime DE60119881T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000388541A JP4177551B2 (ja) 2000-12-21 2000-12-21 光ピックアップ装置
JP2000388541 2000-12-21
JP2001027301 2001-02-02
JP2001027301A JP2002230801A (ja) 2001-02-02 2001-02-02 光ピックアップ装置

Publications (2)

Publication Number Publication Date
DE60119881D1 true DE60119881D1 (de) 2006-06-29
DE60119881T2 DE60119881T2 (de) 2007-05-03

Family

ID=26606263

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60119881T Expired - Lifetime DE60119881T2 (de) 2000-12-21 2001-12-21 Optisches Abtastgerät und und Fokussierungssteuerungsverfahren

Country Status (3)

Country Link
US (1) US7016269B2 (de)
EP (1) EP1220210B1 (de)
DE (1) DE60119881T2 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003240192A1 (en) * 2002-06-14 2003-12-31 Koninklijke Philips Electronics N.V. Controller device with switchable characteristic
JP2004030776A (ja) * 2002-06-25 2004-01-29 Pioneer Electronic Corp フォーカスサーボ装置
JP2004039125A (ja) * 2002-07-04 2004-02-05 Sony Corp 光記録再生装置、焦点制御方法
JP4219895B2 (ja) * 2002-08-14 2009-02-04 富士通株式会社 光学的記憶装置、光学装置及びそのサーボ制御方法
JP4077452B2 (ja) * 2002-10-17 2008-04-16 松下電器産業株式会社 光ディスク装置
DE602004007796T2 (de) * 2003-05-16 2008-04-30 Koninklijke Philips Electronics N.V. Ausgedehnte fokussteuerung
EP1486959B1 (de) * 2003-06-13 2010-12-01 Panasonic Corporation Optischer Kopf und damit versehene Datenverarbeitungseinrichtung
JP4557281B2 (ja) 2004-02-16 2010-10-06 株式会社リコー 光ピックアップ装置及び光ディスク装置
KR20070026889A (ko) * 2004-07-21 2007-03-08 코닌클리케 필립스 일렉트로닉스 엔.브이. 기록 및 재생용 광 디스크 장치
JP2006120243A (ja) * 2004-10-21 2006-05-11 Tdk Corp 光ヘッドの焦点ズレ誤差信号検出方法及びそれを用いた光記録再生装置
JP4542496B2 (ja) * 2004-10-25 2010-09-15 パナソニック株式会社 光ディスク装置
KR20070095316A (ko) * 2004-12-06 2007-09-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 2차원 광 저장 신호의 최적 검출 장치 및 방법
CN100538834C (zh) * 2004-12-20 2009-09-09 皇家飞利浦电子股份有限公司 用于多层记录载体的多光斑检测器装置
WO2006082545A2 (en) 2005-02-04 2006-08-10 Koninklijke Philips Electronics N.V. Method of focus capture in an optical drive
JP2006244535A (ja) * 2005-02-28 2006-09-14 Toshiba Corp 光ヘッド装置および光ディスク装置
JP2006252599A (ja) * 2005-03-08 2006-09-21 Mitsubishi Electric Corp 光学装置及びそれを用いた光デイスク装置
TWI277078B (en) * 2005-05-20 2007-03-21 Sunplus Technology Co Ltd Focusing servo device, optical disc recording/reproducing device and focus-searching method
US20080310283A1 (en) * 2005-07-13 2008-12-18 Arima Devices Corporation Method of Reading Out Information from a Multiple Layer Optical Recording Medium and Optical Readout Device
JP2007095247A (ja) * 2005-09-02 2007-04-12 Matsushita Electric Ind Co Ltd 光ピックアップ装置及び光ディスク装置
US7911890B2 (en) * 2005-09-14 2011-03-22 Panasonic Corporation Optical disk unit
JP4896884B2 (ja) * 2005-10-14 2012-03-14 パナソニック株式会社 光学ヘッド
WO2007117082A2 (en) * 2006-04-11 2007-10-18 Lg Electronics Inc. Recording and reproducing apparatus, recording and reproducing method, and method of determining type of recording medium
JP2008016162A (ja) * 2006-07-10 2008-01-24 Hitachi-Lg Data Storage Inc 光ディスク装置及びその情報記録再生方法
JP4759617B2 (ja) * 2006-07-13 2011-08-31 パイオニア株式会社 ピックアップ装置
JP4247260B2 (ja) * 2006-09-28 2009-04-02 東芝サムスン ストレージ・テクノロジー株式会社 光ディスク装置、および光ディスクの情報記録層判別方法。
WO2008047741A1 (fr) * 2006-10-20 2008-04-24 Panasonic Corporation Dispositif d'enregistrement/reproduction optique d'informations, procédé d'enregistrement/reproduction optique d'informations et circuit de commande
TWI360118B (en) * 2006-11-14 2012-03-11 Princeton Technology Corp Device for layer jumping control of optical disc d
JP2008130121A (ja) * 2006-11-17 2008-06-05 Hitachi-Lg Data Storage Inc 光ディスク装置及びフォーカス制御方法
US8305868B2 (en) * 2007-06-15 2012-11-06 Sanyo Electric Co., Ltd. Optical pickup apparatus
US7933189B2 (en) * 2008-04-18 2011-04-26 Panasonic Corporation Focus optical system and optical disc master exposure apparatus
TWI368220B (en) * 2008-06-26 2012-07-11 Sunplus Technology Co Ltd Optical storage system and spherical aberration compensation apparatus and method thereof
JP2010055721A (ja) * 2008-08-29 2010-03-11 Hitachi-Lg Data Storage Inc 光ディスク装置及びそのフォーカスオフセット設定方法
JP2011192378A (ja) * 2010-02-19 2011-09-29 Panasonic Corp 光ディスク装置および光ディスクの再生方法
WO2018142877A1 (ja) * 2017-02-03 2018-08-09 パナソニックＩｐマネジメント株式会社 光情報処理装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3855936T2 (de) * 1987-08-24 1998-01-02 Sharp Kk Optische Abtastvorrichtung
JPH04364231A (ja) * 1991-01-07 1992-12-16 Toshiba Corp 光学ヘッド装置
US5764619A (en) * 1995-04-07 1998-06-09 Matsushita Electric Industrial Co., Ltd. Optical recording medium having two separate recording layers
US6125087A (en) * 1996-11-07 2000-09-26 Hitachi, Ltd. Optical pickup for optical disk apparatus
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
EP1107242A3 (de) 1999-12-10 2001-09-26 Victor Company Of Japan, Ltd. Optisches abtastgerät

Also Published As

Publication number Publication date
EP1220210A3 (de) 2003-03-19
US7016269B2 (en) 2006-03-21
EP1220210B1 (de) 2006-05-24
DE60119881T2 (de) 2007-05-03
US20020159342A1 (en) 2002-10-31
EP1220210A2 (de) 2002-07-03

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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