JP4125458B2 - 光ディスク装置 - Google Patents

光ディスク装置 Download PDF

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Publication number
JP4125458B2
JP4125458B2 JP30770799A JP30770799A JP4125458B2 JP 4125458 B2 JP4125458 B2 JP 4125458B2 JP 30770799 A JP30770799 A JP 30770799A JP 30770799 A JP30770799 A JP 30770799A JP 4125458 B2 JP4125458 B2 JP 4125458B2
Authority
JP
Japan
Prior art keywords
signal
light
periodic
light spot
optical disc
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
JP30770799A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001126287A (ja
JP2001126287A5 (enExample
Inventor
青児 西脇
和雄 百尾
淳二 長岡
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
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP30770799A priority Critical patent/JP4125458B2/ja
Priority to US09/698,904 priority patent/US6704254B1/en
Priority to KR1020000063554A priority patent/KR100700797B1/ko
Publication of JP2001126287A publication Critical patent/JP2001126287A/ja
Publication of JP2001126287A5 publication Critical patent/JP2001126287A5/ja
Application granted granted Critical
Publication of JP4125458B2 publication Critical patent/JP4125458B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G11B7/08—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
    • G11B7/08—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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs

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  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optical Recording Or Reproduction (AREA)
JP30770799A 1999-10-28 1999-10-28 光ディスク装置 Expired - Lifetime JP4125458B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP30770799A JP4125458B2 (ja) 1999-10-28 1999-10-28 光ディスク装置
US09/698,904 US6704254B1 (en) 1999-10-28 2000-10-27 Optical disk device, control method of optical system, medium, and information aggregate
KR1020000063554A KR100700797B1 (ko) 1999-10-28 2000-10-27 광 디스크 장치, 광시스템의 제어방법 및 매체

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30770799A JP4125458B2 (ja) 1999-10-28 1999-10-28 光ディスク装置

Publications (3)

Publication Number Publication Date
JP2001126287A JP2001126287A (ja) 2001-05-11
JP2001126287A5 JP2001126287A5 (enExample) 2006-11-02
JP4125458B2 true JP4125458B2 (ja) 2008-07-30

Family

ID=17972278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30770799A Expired - Lifetime JP4125458B2 (ja) 1999-10-28 1999-10-28 光ディスク装置

Country Status (3)

Country Link
US (1) US6704254B1 (enExample)
JP (1) JP4125458B2 (enExample)
KR (1) KR100700797B1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100472469B1 (ko) * 2002-08-17 2005-03-10 삼성전자주식회사 디스크 구동기에 있어서 틸트 보정 방법 및 장치
JP2004192754A (ja) * 2002-12-13 2004-07-08 Sanyo Electric Co Ltd 光ディスク記録再生装置のチルト制御方法
JP2004199779A (ja) * 2002-12-18 2004-07-15 Sanyo Electric Co Ltd 光ディスク記録再生装置のチルト制御方法
JP2008509503A (ja) * 2004-08-06 2008-03-27 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 光記憶システムにおけるチルト補正方法および装置
WO2019134162A1 (zh) 2018-01-08 2019-07-11 深圳市韶音科技有限公司 一种骨传导扬声器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY132591A (en) * 1995-10-26 2007-10-31 Sony Corp Optical disc apparatus.
US5646919A (en) * 1996-01-16 1997-07-08 Eastman Kodak Company Dynamic tracking control in an optical recording system by sensing mark formation
KR100198052B1 (ko) * 1996-06-12 1999-06-15 구자홍 틸트 에러 제어장치
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
DE69900014T2 (de) * 1998-09-14 2001-06-07 Matsushita Electric Industrial Co., Ltd. Neigungserkennungsvorrichtung, optischer Speicher und Wiedergabe-Plattengerät, und Neigungserkennungsverfahren

Also Published As

Publication number Publication date
JP2001126287A (ja) 2001-05-11
KR100700797B1 (ko) 2007-03-27
KR20010040203A (ko) 2001-05-15
US6704254B1 (en) 2004-03-09

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