SG50885A1 - Optical disc apparatus for tracking error signal calculation circuit - Google Patents

Optical disc apparatus for tracking error signal calculation circuit

Info

Publication number
SG50885A1
SG50885A1 SG1997003372A SG1997003372A SG50885A1 SG 50885 A1 SG50885 A1 SG 50885A1 SG 1997003372 A SG1997003372 A SG 1997003372A SG 1997003372 A SG1997003372 A SG 1997003372A SG 50885 A1 SG50885 A1 SG 50885A1
Authority
SG
Singapore
Prior art keywords
optical disc
error signal
tracking error
calculation circuit
disc apparatus
Prior art date
Application number
SG1997003372A
Other languages
English (en)
Inventor
Etsufumi Yamamoto
Yoshihiro Kobayashi
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
Publication of SG50885A1 publication Critical patent/SG50885A1/en

Links

Classifications

    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/12—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
    • G11B2220/2525—Magneto-optical [MO] discs
    • 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
    • G11B2220/2545—CDs
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
SG1997003372A 1996-09-12 1997-09-11 Optical disc apparatus for tracking error signal calculation circuit SG50885A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8242386A JPH1091983A (ja) 1996-09-12 1996-09-12 光学式ディスク装置およびトラッキングエラー信号算出回路

Publications (1)

Publication Number Publication Date
SG50885A1 true SG50885A1 (en) 1998-07-20

Family

ID=17088395

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1997003372A SG50885A1 (en) 1996-09-12 1997-09-11 Optical disc apparatus for tracking error signal calculation circuit

Country Status (8)

Country Link
US (1) US6134198A (ja)
JP (1) JPH1091983A (ja)
KR (1) KR100551645B1 (ja)
CN (1) CN1160710C (ja)
HK (1) HK1010273A1 (ja)
ID (1) ID19375A (ja)
MY (1) MY118886A (ja)
SG (1) SG50885A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936602B1 (en) * 1998-02-13 2006-09-20 Yamaha Corporation Optical disk recording technique capable of forming pits accurately centered on track and servo-balance adjusting technique for optical disk recording
US7085204B1 (en) * 1999-05-18 2006-08-01 Lg Electronics, Inc. Method and apparatus for controlling record and reproduction of optical record medium involving averaging servo error signals
KR100636121B1 (ko) * 2000-05-23 2006-10-18 삼성전자주식회사 광픽업장치
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
JP2002150572A (ja) * 2000-11-07 2002-05-24 Sanyo Electric Co Ltd ディスク装置
JP3737058B2 (ja) * 2002-03-12 2006-01-18 沖電気工業株式会社 アナログ加減算回路、主増幅器、レベル識別回路、光受信回路、光送信回路、自動利得制御増幅回路、自動周波数特性補償増幅回路、及び発光制御回路
KR20030088526A (ko) * 2002-05-11 2003-11-20 삼성전자주식회사 광디스크 시스템의 트래킹에러신호 생성장치 및 방법
JP2010153011A (ja) * 2008-06-03 2010-07-08 Panasonic Corp 光電変換装置、光ディスク装置及びその調整方法
JP2011003249A (ja) * 2009-06-19 2011-01-06 Funai Electric Co Ltd 光ディスク装置

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JPS5965946A (ja) * 1982-10-06 1984-04-14 Hitachi Ltd ビデオデイスクプレ−ヤ
JPS59139152A (ja) * 1983-01-28 1984-08-09 Canon Inc 光情報再生方法および装置
JPS61158042A (ja) * 1984-12-28 1986-07-17 Pioneer Electronic Corp トラツキング制御回路
JPH073731B2 (ja) * 1987-04-28 1995-01-18 シャープ株式会社 光ディスク装置におけるトラックジャンプ制御方法
JPH01169741A (ja) * 1987-12-24 1989-07-05 Nec Corp トラック極性検出装置
US5138596A (en) * 1988-07-11 1992-08-11 Canon Kabushiki Kaisha Optical information recording apparatus including means for delaying servo gain by a predetermined time
JP2695446B2 (ja) * 1988-08-31 1997-12-24 キヤノン株式会社 光学的情報記録再生装置
US5144614A (en) * 1988-10-29 1992-09-01 Sony Corporation Optical pickup device
JP2734054B2 (ja) * 1989-02-03 1998-03-30 ソニー株式会社 光ディスク装置のトラッキングエラー検出装置及びトラッキングエラー検出方法
US5113386A (en) * 1989-10-30 1992-05-12 Eastman Kodak Company Focus and tracking error detector apparatus for optical and magneto-optical information storage systems
JPH0423234A (ja) * 1990-05-18 1992-01-27 Sony Corp 光学装置のトラッキング誤差信号生成装置
US5268886A (en) * 1990-07-24 1993-12-07 Matsushita Electric Industrial Co., Ltd. Method and apparatus for reproducing signals using an optical disk having V-shaped grooves
JP2883215B2 (ja) * 1991-01-16 1999-04-19 パイオニア株式会社 光学式記録媒体演奏装置
US5361244A (en) * 1991-04-10 1994-11-01 Hitachi, Ltd. Optical head and information recording apparatus
JPH05205416A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法
US5633854A (en) * 1992-02-19 1997-05-27 Sony Corporation Methods and apparatus for reproducing data recorded on an optical recording medium
DE69330232T2 (de) * 1992-07-31 2002-01-10 Matsushita Electric Industrial Co., Ltd. Vorrichtung zur optischen Aufzeichnung/Wiedergabe von Daten
JPH06162544A (ja) * 1992-11-13 1994-06-10 Sony Corp トラッキングサーボ回路
KR950000128B1 (ko) * 1992-12-08 1995-01-10 현대전자산업 주식회사 광 디스크 장치의 트랙 서보 이득 및 오프셋 보정 장치 및 보정 방법
JPH06223390A (ja) * 1993-01-29 1994-08-12 Sony Corp 光学ヘッドのオフセット修正回路
KR100365610B1 (ko) * 1994-05-17 2003-03-06 소니 가부시끼 가이샤 트래킹서보장치및트랙카운트장치
JPH0896397A (ja) * 1994-07-29 1996-04-12 Sony Corp 受発光素子
JPH08255360A (ja) * 1995-03-16 1996-10-01 Hitachi Ltd 光ディスク装置
JPH08306054A (ja) * 1995-04-28 1996-11-22 Sony Corp トラッキングサーボ回路
JPH09115168A (ja) * 1995-10-19 1997-05-02 Sony Corp 受発光素子
JPH09251649A (ja) * 1996-03-18 1997-09-22 Sony Corp トラッキングエラー検出回路
US5875157A (en) * 1996-03-18 1999-02-23 Sony Corporation Tracking error detecting circuit in disc-shaped recording medium reproducing and recording apparatus
JPH09274726A (ja) * 1996-04-04 1997-10-21 Sony Corp 光学ピックアップ装置
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

Also Published As

Publication number Publication date
KR100551645B1 (ko) 2006-04-21
JPH1091983A (ja) 1998-04-10
ID19375A (id) 1998-07-02
MY118886A (en) 2005-02-28
HK1010273A1 (en) 1999-06-17
CN1179594A (zh) 1998-04-22
KR19980024534A (ko) 1998-07-06
CN1160710C (zh) 2004-08-04
US6134198A (en) 2000-10-17

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