HK1064789A1 - Focus position adjustment device and optical disc drive apparatus - Google Patents

Focus position adjustment device and optical disc drive apparatus

Info

Publication number
HK1064789A1
HK1064789A1 HK04107352A HK04107352A HK1064789A1 HK 1064789 A1 HK1064789 A1 HK 1064789A1 HK 04107352 A HK04107352 A HK 04107352A HK 04107352 A HK04107352 A HK 04107352A HK 1064789 A1 HK1064789 A1 HK 1064789A1
Authority
HK
Hong Kong
Prior art keywords
optical disc
adjustment device
focus position
position adjustment
disc drive
Prior art date
Application number
HK04107352A
Other languages
English (en)
Inventor
Kouichi Takamine
Kenji Fujiune
Akihiro Hatsusegawa
Hiroyuki Yamaguchi
Original Assignee
Matsushita Electric Ind 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 Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of HK1064789A1 publication Critical patent/HK1064789A1/xx

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
    • 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
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
HK04107352A 1997-11-26 2004-09-23 Focus position adjustment device and optical disc drive apparatus HK1064789A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32366597 1997-11-26
JP26115798 1998-09-16

Publications (1)

Publication Number Publication Date
HK1064789A1 true HK1064789A1 (en) 2005-02-04

Family

ID=26544944

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04107352A HK1064789A1 (en) 1997-11-26 2004-09-23 Focus position adjustment device and optical disc drive apparatus

Country Status (3)

Country Link
US (1) US6240055B1 (zh)
CN (8) CN1251207C (zh)
HK (1) HK1064789A1 (zh)

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JP4041387B2 (ja) * 2002-12-11 2008-01-30 日本テキサス・インスツルメンツ株式会社 光ディスク用マーク検出回路
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US7730384B2 (en) * 2005-02-28 2010-06-01 Agere Systems Inc. Method and apparatus for evaluating performance of a read channel
KR20060131471A (ko) * 2005-06-16 2006-12-20 삼성전자주식회사 고밀도 광디스크의 리드인 영역 내 오.피.씨 데이터관리방법
CN100375999C (zh) * 2005-06-29 2008-03-19 广明光电股份有限公司 光驱重新聚焦伺服方法
JP4830426B2 (ja) * 2005-09-28 2011-12-07 ソニー株式会社 光記録媒体、記録装置、記録又は再生装置、記録方法、記録又は再生方法
JP4615423B2 (ja) * 2005-11-14 2011-01-19 パナソニック株式会社 トラックジャンピング走査制御装置およびトラック検索装置
JP4690871B2 (ja) * 2005-11-30 2011-06-01 株式会社日立製作所 光ディスク記録・再生装置及びそのフォーカスサーボ制御方法
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TW200735080A (en) * 2006-03-08 2007-09-16 Cheertek Inc Optical storage system capable of adjusting channel properties and method thereof
US8027229B2 (en) * 2006-03-22 2011-09-27 Panasonic Corporation Focus control device, and optical disc device
US7948839B2 (en) * 2006-06-22 2011-05-24 Panasonic Corporation Optical disk apparatus
JP2008123640A (ja) * 2006-11-15 2008-05-29 Funai Electric Co Ltd 光ディスク装置
EP2503550A1 (en) * 2006-12-26 2012-09-26 Panasonic Corporation Device for reproducing information from an optical recording medium, device for recording information on an optical recording medium, and reproduction signal processing method
JP2008251134A (ja) * 2007-03-30 2008-10-16 Sony Corp 光ディスク装置、情報記録方法及び情報再生方法
JP4985050B2 (ja) * 2007-03-30 2012-07-25 ソニー株式会社 光ディスク装置及び情報再生方法
US8045436B2 (en) * 2007-11-29 2011-10-25 Mediatek Inc. Method and apparatus for adjusting focus offset based on target condition
WO2009154000A1 (ja) * 2008-06-19 2009-12-23 パナソニック株式会社 光ディスク装置および光ディスク装置の駆動方法
JP2010129119A (ja) * 2008-11-27 2010-06-10 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
KR101266621B1 (ko) * 2009-04-15 2013-05-22 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 액추에이터 신호 결정 방법, 광 디스크 드라이브 및 컴퓨터 판독 가능 매체
KR102221752B1 (ko) * 2014-03-20 2021-03-02 삼성전자주식회사 메모리 장치의 프로그램 방법 및 이를 포함하는 데이터 독출 방법
JP7022096B2 (ja) * 2019-03-28 2022-02-17 ファナック株式会社 サーボ制御装置

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Also Published As

Publication number Publication date
CN1251205C (zh) 2006-04-12
CN1495731A (zh) 2004-05-12
CN1251207C (zh) 2006-04-12
CN1495728A (zh) 2004-05-12
CN1310225C (zh) 2007-04-11
CN1501369A (zh) 2004-06-02
CN1149547C (zh) 2004-05-12
CN1251203C (zh) 2006-04-12
CN1221950A (zh) 1999-07-07
CN1497548A (zh) 2004-05-19
CN1251204C (zh) 2006-04-12
CN1495730A (zh) 2004-05-12
CN1495732A (zh) 2004-05-12
CN1324580C (zh) 2007-07-04
CN1251206C (zh) 2006-04-12
US6240055B1 (en) 2001-05-29
CN1495729A (zh) 2004-05-12

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Effective date: 20181124