DE60135792D1 - Optisches Abtastgerät, optisches Plattengerät, und Verfahren zur Detektion eines Spurerkennungssignals - Google Patents

Optisches Abtastgerät, optisches Plattengerät, und Verfahren zur Detektion eines Spurerkennungssignals

Info

Publication number
DE60135792D1
DE60135792D1 DE60135792T DE60135792T DE60135792D1 DE 60135792 D1 DE60135792 D1 DE 60135792D1 DE 60135792 T DE60135792 T DE 60135792T DE 60135792 T DE60135792 T DE 60135792T DE 60135792 D1 DE60135792 D1 DE 60135792D1
Authority
DE
Germany
Prior art keywords
detecting
detection signal
track detection
optical disk
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
DE60135792T
Other languages
English (en)
Inventor
Noriaki Nishi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE60135792D1 publication Critical patent/DE60135792D1/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
    • G11B7/13—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
    • 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
    • G11B7/00718—Groove and land recording, i.e. user data recorded both in the grooves and on the lands
    • 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
    • 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
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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
    • G11B7/12—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
    • G11B7/0901—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
    • G11B7/0906—Differential phase difference 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
    • G11B7/0908—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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
DE60135792T 2000-07-12 2001-07-12 Optisches Abtastgerät, optisches Plattengerät, und Verfahren zur Detektion eines Spurerkennungssignals Expired - Lifetime DE60135792D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000211878 2000-07-12

Publications (1)

Publication Number Publication Date
DE60135792D1 true DE60135792D1 (de) 2008-10-23

Family

ID=18707903

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60120050T Expired - Lifetime DE60120050T2 (de) 2000-07-12 2001-07-12 Optisches Abtastgerät, optisches Plattengerät, und Verfahren zur Detektion eines Spurerkennungssignals
DE60135792T Expired - Lifetime DE60135792D1 (de) 2000-07-12 2001-07-12 Optisches Abtastgerät, optisches Plattengerät, und Verfahren zur Detektion eines Spurerkennungssignals

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60120050T Expired - Lifetime DE60120050T2 (de) 2000-07-12 2001-07-12 Optisches Abtastgerät, optisches Plattengerät, und Verfahren zur Detektion eines Spurerkennungssignals

Country Status (6)

Country Link
US (1) US6717897B2 (de)
EP (2) EP1172807B1 (de)
JP (1) JP4483140B2 (de)
KR (1) KR100819625B1 (de)
CN (1) CN1158650C (de)
DE (2) DE60120050T2 (de)

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KR100819625B1 (ko) * 2000-07-12 2008-04-04 소니 가부시끼 가이샤 광 픽업 장치, 광 디스크 장치 및 트랙 인식 신호 검출방법
JP2003173543A (ja) * 2001-09-26 2003-06-20 Victor Co Of Japan Ltd 情報記録担体及び情報記録担体の再生方法及び情報記録担体の再生装置
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
US20060011850A1 (en) * 2002-09-05 2006-01-19 Seely John F Multilayer polarization sensor (MPS) for x-ray and extreme ultraviolet radiation
US20040081048A1 (en) * 2002-10-23 2004-04-29 Wilhelmson Ulf Local track pitch measuring apparatus and method
CN100382164C (zh) * 2003-05-16 2008-04-16 汤姆森特许公司 读/写光记录介质的装置
TWI254297B (en) * 2003-05-21 2006-05-01 Samsung Electronics Co Ltd Method and system for forming main and side beams of light for multiple disc formats
US20060181989A1 (en) * 2005-01-27 2006-08-17 Hanks D M System and/or method for adjusting a laser beam
US20100220576A1 (en) * 2005-06-23 2010-09-02 Pioneer Corporation Optical pickup device and information recording/reproduction device
KR100717017B1 (ko) * 2005-07-28 2007-05-10 삼성전자주식회사 광픽업 및 이를 채용한 광 기록 및/또는 재생기기
JP4601546B2 (ja) * 2005-12-09 2010-12-22 三洋電機株式会社 光ディスク装置
JP2007172793A (ja) * 2005-12-26 2007-07-05 Sony Corp 光ピックアップ装置および光ディスク装置
JP5124148B2 (ja) * 2007-02-09 2013-01-23 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およびそれを用いた光ディスク装置
JP2008257864A (ja) * 2008-07-30 2008-10-23 Hitachi Ltd 光ピックアップ及びそれを用いた光学的情報記録再生装置
JP2012243363A (ja) * 2011-05-20 2012-12-10 Sony Corp 再生方法、再生装置
US10134438B2 (en) 2013-06-28 2018-11-20 Sony Corporation Optical medium reproduction apparatus and method of reproducing optical medium
JP6167918B2 (ja) 2013-08-14 2017-07-26 ソニー株式会社 光媒体再生装置および光媒体再生方法
WO2015022767A1 (ja) 2013-08-14 2015-02-19 ソニー株式会社 光媒体再生装置および光媒体再生方法

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Publication number Priority date Publication date Assignee Title
US5208801A (en) * 1988-02-05 1993-05-04 Tandy Corporation Method and apparatus for correcting focus in an optical recording system
CA2037428C (en) * 1990-03-05 1997-04-01 Akira Takahashi Reproducing optical device for a magneto-optical recording medium
US5345072A (en) * 1991-12-24 1994-09-06 Matsushita Electric Industrial Co., Ltd. Focus detection device for reading information from an optical recording medium
JP3240846B2 (ja) * 1994-08-12 2001-12-25 松下電器産業株式会社 光ヘッド
JPH08306055A (ja) * 1995-05-08 1996-11-22 Matsushita Electric Ind Co Ltd 光ディスク装置
US5828634A (en) * 1996-02-22 1998-10-27 Ricoh Company, Ltd. Optical disk tracking method and device for producing a tracking error signal and a track crossing signal
US5696749A (en) * 1996-06-28 1997-12-09 Eastman Kodak Company Dual-wavelength optical recording head utilizing grating beam splitter and integrated laser and detectors
JP3301765B2 (ja) * 1996-10-31 2002-07-15 三洋電機株式会社 光ピックアップ装置
JP2845224B2 (ja) * 1996-11-15 1999-01-13 日本電気株式会社 ランド／グルーブ検出装置
JP3176568B2 (ja) * 1997-07-28 2001-06-18 シャープ株式会社 光ピックアップ装置
JPH11296893A (ja) * 1998-04-14 1999-10-29 Ricoh Co Ltd 光ピックアップ
JP2000003525A (ja) * 1998-06-12 2000-01-07 Sony Corp 信号生成方法、光学式ディスク記録再生装置に用いる信号生成方法、信号生成方法を用いた光ピックアップ、この光ピックアップを有する光学式ディスク記録再生装置
US6091693A (en) * 1998-06-30 2000-07-18 Fujitsu Limited Optical recording medium and optical information storage unit
EP1109163B1 (de) * 1999-12-16 2008-07-09 Victor Company Of Japan, Limited Optische Vorrichtung
JP2001184698A (ja) * 1999-12-22 2001-07-06 Pioneer Electronic Corp 光ピックアップ装置
KR100636122B1 (ko) * 2000-05-29 2006-10-18 삼성전자주식회사 광픽업용 시크 방향 검출신호 생성장치
KR100819625B1 (ko) * 2000-07-12 2008-04-04 소니 가부시끼 가이샤 광 픽업 장치, 광 디스크 장치 및 트랙 인식 신호 검출방법

Also Published As

Publication number Publication date
CN1158650C (zh) 2004-07-21
CN1345037A (zh) 2002-04-17
KR20020006457A (ko) 2002-01-19
EP1172807A2 (de) 2002-01-16
JP4483140B2 (ja) 2010-06-16
JP2002092935A (ja) 2002-03-29
EP1605446A3 (de) 2007-04-25
US20020018420A1 (en) 2002-02-14
EP1605446B1 (de) 2008-09-10
DE60120050T2 (de) 2006-12-07
EP1172807A3 (de) 2004-06-09
EP1172807B1 (de) 2006-05-31
US6717897B2 (en) 2004-04-06
DE60120050D1 (de) 2006-07-06
KR100819625B1 (ko) 2008-04-04
EP1605446A2 (de) 2005-12-14

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