DE69900014T2 - Neigungserkennungsvorrichtung, optischer Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren - Google Patents

Neigungserkennungsvorrichtung, optischer Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren

Info

Publication number
DE69900014T2
DE69900014T2 DE69900014T DE69900014T DE69900014T2 DE 69900014 T2 DE69900014 T2 DE 69900014T2 DE 69900014 T DE69900014 T DE 69900014T DE 69900014 T DE69900014 T DE 69900014T DE 69900014 T2 DE69900014 T2 DE 69900014T2
Authority
DE
Germany
Prior art keywords
tilt detection
optical memory
detection method
disk device
playback disk
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
DE69900014T
Other languages
English (en)
Other versions
DE69900014D1 (de
Inventor
Atsushi Nakamura
Mamoru Shoji
Takashi Ishida
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69900014D1 publication Critical patent/DE69900014D1/de
Application granted granted Critical
Publication of DE69900014T2 publication Critical patent/DE69900014T2/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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10388—Improvement or modification of read or write signals signal quality assessment control of the read or write heads, e.g. tracking errors, defocus or tilt 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
    • G11B7/007—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
    • G11B7/09—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
    • 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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B7/095—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
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • 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
    • G11B7/00745—Sectoring or header formats within a track

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69900014T 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optischer Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren Expired - Lifetime DE69900014T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25990498 1998-09-14
JP36454998 1998-12-22

Publications (2)

Publication Number Publication Date
DE69900014D1 DE69900014D1 (de) 2000-11-09
DE69900014T2 true DE69900014T2 (de) 2001-06-07

Family

ID=26544348

Family Applications (4)

Application Number Title Priority Date Filing Date
DE69900014T Expired - Lifetime DE69900014T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optischer Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren
DE69900013T Expired - Lifetime DE69900013T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optisches Speicher und Wiedergabe-Plattengerät, und Neigungserkennungserfahren
DE69933830T Expired - Lifetime DE69933830T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optisches Plattengerät, und Neigungssteuerverfahren
DE69900012T Expired - Lifetime DE69900012T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optisches Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren

Family Applications After (3)

Application Number Title Priority Date Filing Date
DE69900013T Expired - Lifetime DE69900013T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optisches Speicher und Wiedergabe-Plattengerät, und Neigungserkennungserfahren
DE69933830T Expired - Lifetime DE69933830T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optisches Plattengerät, und Neigungssteuerverfahren
DE69900012T Expired - Lifetime DE69900012T2 (de) 1998-09-14 1999-07-08 Neigungserkennungsvorrichtung, optisches Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren

Country Status (9)

Country Link
US (4) US6549493B1 (de)
EP (4) EP0987689B1 (de)
KR (1) KR100365661B1 (de)
CN (3) CN1319055C (de)
AU (1) AU755865B2 (de)
BR (1) BR9907115A (de)
CA (1) CA2309696C (de)
DE (4) DE69900014T2 (de)
WO (1) WO2000016321A1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4258046B2 (ja) * 1998-11-17 2009-04-30 ソニー株式会社 ディスクドライブ装置
JP3776620B2 (ja) * 1999-03-24 2006-05-17 パイオニア株式会社 方向検出装置及び方向検出方法
US6963520B1 (en) * 1999-05-18 2005-11-08 Lg Electronics Inc. Method of recording and reproducing an optical recording medium
KR100606669B1 (ko) * 1999-05-19 2006-07-31 엘지전자 주식회사 광 기록매체의 기록재생 방법
US7214232B2 (en) * 1999-07-23 2007-05-08 Ethicon, Inc. Graft fixation device
JP2001056952A (ja) * 1999-08-19 2001-02-27 Hitachi Ltd 光ヘッド装置およびその製造方法
JP4125458B2 (ja) * 1999-10-28 2008-07-30 松下電器産業株式会社 光ディスク装置
CN1235205C (zh) * 2000-06-26 2006-01-04 松下电器产业株式会社 光学头
US6970404B2 (en) * 2000-10-05 2005-11-29 Matsushita Electric Industrial Co., Ltd. Information recording/reproducing apparatus
CN1324579C (zh) * 2001-03-30 2007-07-04 三星电机株式会社 倾斜检测器和倾斜检测的方法
JP2003077156A (ja) * 2001-06-20 2003-03-14 Mitsubishi Electric Corp 光ヘッド装置
JP2003141761A (ja) * 2001-10-31 2003-05-16 Sanyo Electric Co Ltd 光ディスク装置および記録／再生方法
JP4287288B2 (ja) 2002-04-02 2009-07-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 多次元アクチュエータを利用してチルト補正を実行する方法及び装置
JP2004047043A (ja) * 2002-05-13 2004-02-12 Nec Corp 光ディスク媒体およびドライブ装置
KR20030093683A (ko) * 2002-06-05 2003-12-11 삼성전자주식회사 호환형 광픽업
TW589634B (en) * 2002-06-11 2004-06-01 Benq Corp Method for adjusting mechanical error of optical disc reading device
JP2004022127A (ja) * 2002-06-19 2004-01-22 Pioneer Electronic Corp チルト補正装置
KR100888590B1 (ko) * 2002-07-11 2009-03-16 삼성전자주식회사 래디얼 틸트 검출 방법 및 그 장치
JP2005534129A (ja) * 2002-07-24 2005-11-10 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 再書き込み可能な光媒体、当該光媒体を読み取る及び／又は当該光媒体に書き込む装置、及び再書き込み可能なディスクを製造する方法。
JP2004264808A (ja) * 2003-01-07 2004-09-24 Shinohara Yasuko 光学顕微鏡および天体望遠鏡の結像方法
JP3947875B2 (ja) * 2003-03-10 2007-07-25 日本電気株式会社 光ディスク媒体及び光ディスク記録再生方法
DE10319757A1 (de) * 2003-04-30 2004-11-18 Deutsche Thomson-Brandt Gmbh Wiedergabe- oder Aufzeichnungsgerät für optische Aufzeichnungsträger mit einer Neigungsregelung
CN1791911A (zh) * 2003-05-21 2006-06-21 皇家飞利浦电子股份有限公司 盘驱动器装置和倾斜补偿方法
JP2005071527A (ja) * 2003-08-27 2005-03-17 Tdk Corp 光記録媒体の反り角測定装置及び反り角測定方法
CN100369131C (zh) * 2003-09-03 2008-02-13 联发科技股份有限公司 光学头倾斜角度调整方法
JP3989889B2 (ja) * 2003-09-19 2007-10-10 株式会社リコー 収差調整装置、光ピックアップ、プログラム、及び記憶媒体
TWI260013B (en) * 2003-12-04 2006-08-11 Mediatek Inc Optical incidence auto-adjusting system
JP2005166195A (ja) * 2003-12-04 2005-06-23 Canon Inc 光情報記録再生装置及び光情報記録再生方法
JP2005196896A (ja) * 2004-01-08 2005-07-21 Toshiba Corp 光ディスク装置およびその制御方法
JP4537780B2 (ja) * 2004-06-30 2010-09-08 パイオニア株式会社 チルト補正装置及び方法、情報記録装置、並びに情報記録再生装置
US7414929B2 (en) * 2004-09-22 2008-08-19 Lsi Corporation Optical disc tilt detection and tilt servo control method
CN101223589B (zh) 2005-05-23 2011-05-25 瑞萨电子株式会社 光盘装置
TWI292905B (en) * 2005-06-20 2008-01-21 Mediatek Inc Control circuit of optical storage device and method thereof
EP1764791A1 (de) * 2005-09-16 2007-03-21 Deutsche Thomson-Brandt Gmbh Verfahren und Gerät zum Lesen von winkelgemultiplexten Pits
US20070133365A1 (en) * 2005-12-12 2007-06-14 Shih-Hao Ko Tilt calibration apparatus and method capable of adjusting included angle between optical pick-up head and optical disc according to wobble signal
US20080025168A1 (en) * 2006-07-27 2008-01-31 Chi-Mou Chao Methods for determining relationship between main beam and side beam in optical storage device and related apparatuses
JP2010015655A (ja) * 2008-07-04 2010-01-21 Hitachi Ltd 光ディスク装置及びそのチルト制御方法
CN103035264B (zh) * 2011-09-29 2015-07-08 凌阳科技股份有限公司 数据还原装置与方法

Family Cites Families (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0680535B2 (ja) 1982-08-27 1994-10-12 株式会社日立製作所 情報の記録再生方法
JPS59191144A (ja) 1983-04-14 1984-10-30 Sony Corp 光ピツクアツプのトラツキングサ−ボ回路
JPS59191143A (ja) 1983-04-15 1984-10-30 Hitachi Ltd 光学的トラツク追跡装置
JPS60143448A (ja) * 1983-12-29 1985-07-29 Sony Corp スキユ−エラ−検出回路
US4748609A (en) * 1985-03-29 1988-05-31 Hitachi, Ltd. Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset
JPS61294640A (ja) 1985-06-21 1986-12-25 Hitachi Ltd 光学的情報記録再生方式
CA1257390A (en) 1985-07-30 1989-07-11 Johannes J. Verboom Optical disk tracking and seeking systems and specific track formats (wobbled pits)
US4879708A (en) 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using wobbled pits
US4959823A (en) 1985-07-30 1990-09-25 Laser Magnetic Storage International Company Tracking and seeking system for use with an optical record carrier having a wobbled track format
JPS6289246A (ja) * 1985-10-16 1987-04-23 Sankyo Seiki Mfg Co Ltd 光記録媒体傾き検出装置
US4866688A (en) 1985-12-20 1989-09-12 Hitachi, Ltd. Composite tracking servo system for optical disc apparatus with track offset correction
JPS62232732A (ja) 1986-04-03 1987-10-13 Victor Co Of Japan Ltd 光学的情報信号再生装置
JPS63149841A (ja) * 1986-12-13 1988-06-22 Hitachi Ltd 光学式情報読取装置のデイスク傾き検出装置
JP2911449B2 (ja) * 1987-10-29 1999-06-23 パイオニア株式会社 光学式情報読取装置
JPH01302546A (ja) * 1988-05-30 1989-12-06 Sankyo Seiki Mfg Co Ltd 変位検出方法
JPH01312744A (ja) 1988-06-13 1989-12-18 Mitsubishi Electric Corp 光学式情報再生装置
JP2705207B2 (ja) 1989-04-28 1998-01-28 松下電器産業株式会社 オフトラック検出装置
JPH0410231A (ja) 1990-04-27 1992-01-14 Kenwood Corp 光ディスクの情報トラック蛇行検出装置
JP2866160B2 (ja) * 1990-07-19 1999-03-08 パイオニア株式会社 光学式ディスクプレーヤ
JP3072767B2 (ja) * 1990-07-24 2000-08-07 パイオニア株式会社 光学式ディスクプレーヤ
JPH04229423A (ja) 1990-12-27 1992-08-18 Ricoh Co Ltd 光ピックアップの傾き補正装置
JPH04332920A (ja) 1991-05-02 1992-11-19 Olympus Optical Co Ltd 光学的情報記録再生装置
US5404345A (en) * 1991-06-07 1995-04-04 Brother Kogyo Kabushiki Kaisha Optical recording medium and tracking servo circuit adapted therefor using wobbled pits
JPH06289246A (ja) * 1993-04-05 1994-10-18 Nippon Telegr & Teleph Corp <Ntt> 波長多重分離結合回路
JP3161891B2 (ja) * 1993-11-16 2001-04-25 松下電器産業株式会社 ディスクチルト検出装置およびディスクチルト補正装置
JPH07141674A (ja) * 1993-11-18 1995-06-02 Sony Corp 光ディスク、光ディスク再生方法及び光ディスク再生装置
JPH0817064A (ja) * 1994-04-27 1996-01-19 Victor Co Of Japan Ltd 光ディスク装置
US5898654A (en) * 1994-07-14 1999-04-27 Matsushita Electric Industrial Co., Ltd. Optical disk and optical disk apparatus having a predetermined pattern of marks on tracks such that a reproduced signal is caused to jitter
JPH0855341A (ja) * 1994-08-12 1996-02-27 Matsushita Electric Ind Co Ltd 光ディスク媒体および光ディスク装置
JP3025472B2 (ja) 1995-02-17 2000-03-27 松下電器産業株式会社 光ディスク記録／再生装置
US5805543A (en) * 1995-02-22 1998-09-08 Matsushita Electric Industrial Co., Ltd. Tilt control apparatus based on pulsed width detection of an information reproduced signal
JPH08279160A (ja) * 1995-03-31 1996-10-22 Sony Corp 光学記録媒体及び光学デイスク装置
JP2713229B2 (ja) 1995-05-17 1998-02-16 株式会社日立製作所 トラッキング方法及び光ディスク装置
KR0176888B1 (ko) * 1996-01-24 1999-04-15 구자홍 광디스크 기록재생기의 서보 제어 장치
US6418095B1 (en) * 1996-06-18 2002-07-09 Matsushita Electric Industrial Co., Ltd. Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same
JPH1083549A (ja) * 1996-09-05 1998-03-31 Sanyo Electric Co Ltd ディスクプレーヤーのティルト制御方法
JP2842403B2 (ja) 1996-09-11 1999-01-06 日本電気株式会社 光ディスク装置のチルト補正方法および光ディスク装置
JPH1091971A (ja) * 1996-09-12 1998-04-10 Sony Corp 光学式ディスク装置のトラッキング制御装置とその方法
US5914925A (en) * 1997-01-10 1999-06-22 Eastman Kodak Company DRDW differential phase tracking method and apparatus
JP3211002B2 (ja) 1997-04-24 2001-09-25 富士通株式会社 光記録媒体、チルト検出器、光ディスク装置、チルト検出方法及びチルト補正方法
JPH10312565A (ja) 1997-05-14 1998-11-24 Olympus Optical Co Ltd 光ディスク駆動装置
JPH1116216A (ja) * 1997-06-19 1999-01-22 Sony Corp 光ディスク及び光ディスク装置
JPH11144281A (ja) 1997-11-13 1999-05-28 Sony Corp ディスク再生装置
JPH11161987A (ja) 1997-11-25 1999-06-18 Sony Corp スキュー検出装置
JP3545196B2 (ja) * 1998-03-20 2004-07-21 パイオニア株式会社 チルトサーボ制御装置
KR100618962B1 (ko) * 1998-08-29 2006-09-01 삼성전자주식회사 서보 에러 검출 방법, 이에 적합한 장치, 트랙킹 에러 검출 방법, 그리고 틸트 에러 검출방법
US6459664B1 (en) * 1998-08-31 2002-10-01 Matsushita Electric Industrial Co., Ltd. Optical disc tilt control apparatus
JP2000132855A (ja) * 1998-10-27 2000-05-12 Matsushita Electric Ind Co Ltd 光情報記録再生装置
JP3688482B2 (ja) 1998-10-29 2005-08-31 パイオニア株式会社 傾斜検出装置
JP2007149841A (ja) * 2005-11-25 2007-06-14 Toyota Motor Corp 熱発電装置

Also Published As

Publication number Publication date
KR100365661B1 (ko) 2002-12-26
CN1598939A (zh) 2005-03-23
CN1598938A (zh) 2005-03-23
EP0987690A1 (de) 2000-03-22
CN100334621C (zh) 2007-08-29
EP0987690B1 (de) 2000-10-04
CN1319055C (zh) 2007-05-30
EP0987689A3 (de) 2002-12-11
EP0987689A2 (de) 2000-03-22
US6169715B1 (en) 2001-01-02
AU755865B2 (en) 2003-01-02
BR9907115A (pt) 2000-10-03
CN1209756C (zh) 2005-07-06
DE69900013D1 (de) 2000-11-09
EP0987691B1 (de) 2000-10-04
WO2000016321A1 (en) 2000-03-23
DE69933830T2 (de) 2007-06-28
DE69900012D1 (de) 2000-11-09
KR20010032111A (ko) 2001-04-16
EP0986053A1 (de) 2000-03-15
US6157600A (en) 2000-12-05
EP0986053B1 (de) 2000-10-04
DE69900012T2 (de) 2001-06-07
CN1277712A (zh) 2000-12-20
AU4651299A (en) 2000-04-03
EP0987691A1 (de) 2000-03-22
WO2000016321B1 (en) 2000-05-25
CA2309696A1 (en) 2000-03-23
DE69933830D1 (de) 2006-12-14
US6167009A (en) 2000-12-26
DE69900014D1 (de) 2000-11-09
CA2309696C (en) 2002-12-24
US6549493B1 (en) 2003-04-15
DE69900013T2 (de) 2001-06-07
EP0987689B1 (de) 2006-11-02

Similar Documents

Publication Publication Date Title
DE69900014T2 (de) Neigungserkennungsvorrichtung, optischer Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren
DE60033543D1 (de) Aufnahmegerät, Aufnahmeverfahren, Wiedergabegerät, Wiedergabeverfahren und Aufnahmemedium
DE69809303D1 (de) Optische Platte, Wiedergabegerät und Wiedergabeverfahren
DE69704034T2 (de) Datenaufzeichnungsmedium, Aufzeichnungsgerät und Wiedergabegerät
DE69900033D1 (de) Optisches Datenaufzeichnungsverfahren und Datenaufzeichnungsgerät
DE69609076D1 (de) Informationsspeichermedium, informationswiedergabeverfahren und informationswiedergabegerät
DE69627992D1 (de) Informationsaufzeichnungsmedium, aufzeichnungsverfahren und wiedergabegerät
DE69900901D1 (de) Informationsaufzeichnungsmedium, Informationsaufzeichnungsverfahren und Informationsaufzeichnungsgerät
DE60002774D1 (de) Optische Platte, Wiedergabegerät, Wiedergabeverfahren und Aufzeichnungsmedium
DE60037417D1 (de) Aufnahmesystem, daten-aufnahmevorrichtung, speicher-vorrichtung, und daten-aufnahmeverfahren
DE69913894D1 (de) Wiedergabeverfahren, Speichermedium, Wiedergabegerät
DE69627741D1 (de) Informationsaufzeichnungsmethode, Wiedergabemethode und Wiedergabegerät
DE69704174D1 (de) Informationsaufzeichnungsverfahren, und Informationsaufzeichnungsgerät
DE60019883D1 (de) Optisches Aufzeichnungsmedium, Spurverfolgungsverfahren und Aufzeichnungs- / Wiedergabegerät
DE60001335T2 (de) Informationsaufzeichnungsmedium, Aufzeichnungs- und Wiedergabeverfahren und -vorrichtung
DE69915041D1 (de) Informationsverarbeitungsvorrichtung und -methode, und programmspeichermedium
DE69926283D1 (de) Wiedergabegerät, Aufzeichnungsgerät und Aufzeichnungs-/Wiedergabevorrichtung
DE69932108D1 (de) Aufzeichnungsgerät, Aufzeichnungsverfahren und Speichermedium
DE69721644D1 (de) Informationsaufzeichnungsgerät, -medium und -wiedergabegerät
DE60104040D1 (de) Datenaufzeichnungsgerät, Datenaufzeichnungsverfahren und optisches Aufzeichnungsmedium
DE69817893D1 (de) Objektivlinse, Wiedergabegerät und Wiedergabemethode
DE69904141D1 (de) Datenaufzeichnungs- und wiedergabegerät
DE69921665D1 (de) Aufzeichnungsmedium, informationsaufzeichnungsgerät sowie informationswiedergabegerät

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP