JP2003203366A - 光ディスク用サーボエラー検出装置 - Google Patents

光ディスク用サーボエラー検出装置

Info

Publication number
JP2003203366A
JP2003203366A JP2002002581A JP2002002581A JP2003203366A JP 2003203366 A JP2003203366 A JP 2003203366A JP 2002002581 A JP2002002581 A JP 2002002581A JP 2002002581 A JP2002002581 A JP 2002002581A JP 2003203366 A JP2003203366 A JP 2003203366A
Authority
JP
Japan
Prior art keywords
signal
envelope
light receiving
servo error
signals
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.)
Pending
Application number
JP2002002581A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003203366A5 (enExample
Inventor
Hironobu Murata
寛信 村田
Takashi Aoe
敬 青江
Koyu Yamanoi
康友 山野井
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.)
Texas Instruments Japan Ltd
Original Assignee
Texas Instruments Japan 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 Texas Instruments Japan Ltd filed Critical Texas Instruments Japan Ltd
Priority to JP2002002581A priority Critical patent/JP2003203366A/ja
Priority to US10/339,376 priority patent/US7158455B2/en
Publication of JP2003203366A publication Critical patent/JP2003203366A/ja
Publication of JP2003203366A5 publication Critical patent/JP2003203366A5/ja
Pending 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
    • 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
    • G11B7/085—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP2002002581A 2002-01-09 2002-01-09 光ディスク用サーボエラー検出装置 Pending JP2003203366A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002002581A JP2003203366A (ja) 2002-01-09 2002-01-09 光ディスク用サーボエラー検出装置
US10/339,376 US7158455B2 (en) 2002-01-09 2003-01-09 Servo error detecting device for optical disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002002581A JP2003203366A (ja) 2002-01-09 2002-01-09 光ディスク用サーボエラー検出装置

Publications (2)

Publication Number Publication Date
JP2003203366A true JP2003203366A (ja) 2003-07-18
JP2003203366A5 JP2003203366A5 (enExample) 2005-07-28

Family

ID=19190761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002002581A Pending JP2003203366A (ja) 2002-01-09 2002-01-09 光ディスク用サーボエラー検出装置

Country Status (2)

Country Link
US (1) US7158455B2 (enExample)
JP (1) JP2003203366A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070076553A1 (en) * 2003-05-16 2007-04-05 Christian Buchler Apparatus for reading and/or writing optical recording media
US7145849B2 (en) * 2004-06-02 2006-12-05 Lite-On It Corporation Method to reduce the offset component of tracking error in an optical disc player
KR100674930B1 (ko) * 2004-12-31 2007-01-26 삼성전자주식회사 접선 푸시-풀 신호를 이용하여 ｅｆｍ 신호를 발생하는장치 및 방법
TWI361431B (en) * 2007-11-09 2012-04-01 Sunplus Technology Co Ltd Apparatus and method for generating track-crossing signal of optical disk device
JP2011003249A (ja) * 2009-06-19 2011-01-06 Funai Electric Co Ltd 光ディスク装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208642A (en) * 1981-06-18 1982-12-21 Toshiba Corp Focus controller
JP2565485B2 (ja) * 1984-09-14 1996-12-18 オリンパス光学工業株式会社 光学的記録再生装置
US4998234A (en) * 1987-03-31 1991-03-05 Rees Theodore D Logarithmic servo error detection for optical disk drive
JP2764960B2 (ja) * 1988-11-16 1998-06-11 松下電器産業株式会社 記録再生方法
JPH0453036A (ja) * 1990-06-20 1992-02-20 Hitachi Maxell Ltd 光学情報記録再生装置
JP3550836B2 (ja) * 1995-10-19 2004-08-04 ソニー株式会社 光学装置におけるトラッキングサーボ装置及びトラッキングサーボ方法
JPH10112043A (ja) * 1996-10-04 1998-04-28 Sony Corp 再生装置
JP3374774B2 (ja) * 1999-01-05 2003-02-10 ヤマハ株式会社 光ディスク装置
US6285636B1 (en) * 1999-01-27 2001-09-04 Texas Instruments Incorporated Optical disc apparatus with lens position detection and control
JP2002025091A (ja) * 2000-07-05 2002-01-25 Sony Corp 回折格子、光ピックアップ、誤差信号検出装置および誤差信号検出方法
US6754157B2 (en) * 2000-08-07 2004-06-22 Victor Company Of Japan, Limited Recording and/or reproducing apparatus and recording and/or reproducing method capable of detecting a land pre-pit on disc securely at a high precision

Also Published As

Publication number Publication date
US7158455B2 (en) 2007-01-02
US20030133374A1 (en) 2003-07-17

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