HK8997A - Method and switching arrangement for the compensation of offset voltages in a focus and/or track-following circuit - Google Patents

Method and switching arrangement for the compensation of offset voltages in a focus and/or track-following circuit Download PDF

Info

Publication number
HK8997A
HK8997A HK8997A HK8997A HK8997A HK 8997 A HK8997 A HK 8997A HK 8997 A HK8997 A HK 8997A HK 8997 A HK8997 A HK 8997A HK 8997 A HK8997 A HK 8997A
Authority
HK
Hong Kong
Prior art keywords
input
output
focusing
photo
error signal
Prior art date
Application number
HK8997A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gleim Guenter
Original Assignee
Deutsche Thomson-Brandt Gmbh
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 Deutsche Thomson-Brandt Gmbh filed Critical Deutsche Thomson-Brandt Gmbh
Publication of HK8997A publication Critical patent/HK8997A/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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • 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
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/0909—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 by astigmatic methods
    • 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
    • G11B7/0945—Methods for initialising servos, start-up sequences

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
HK8997A 1988-07-15 1997-01-23 Method and switching arrangement for the compensation of offset voltages in a focus and/or track-following circuit HK8997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3824039A DE3824039A1 (de) 1988-07-15 1988-07-15 Verfahren und schaltungsanordnung zur kompensation von offset-spannungen in einem fokus- und/oder spurregelkreis

Publications (1)

Publication Number Publication Date
HK8997A true HK8997A (en) 1997-01-31

Family

ID=6358758

Family Applications (1)

Application Number Title Priority Date Filing Date
HK8997A HK8997A (en) 1988-07-15 1997-01-23 Method and switching arrangement for the compensation of offset voltages in a focus and/or track-following circuit

Country Status (14)

Country Link
US (1) US5148423A (da)
EP (2) EP0378650A1 (da)
JP (1) JP2726131B2 (da)
KR (1) KR0145299B1 (da)
CN (1) CN1020007C (da)
AT (1) ATE80960T1 (da)
DE (2) DE3824039A1 (da)
DK (1) DK67990A (da)
ES (1) ES2035459T3 (da)
GR (1) GR3006012T3 (da)
HK (1) HK8997A (da)
HU (1) HUT53467A (da)
MY (1) MY104135A (da)
WO (1) WO1990000797A1 (da)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03102485U (da) * 1990-02-08 1991-10-24
KR100254716B1 (ko) * 1990-04-05 2000-05-01 이데이 노부유끼 광학식 디스크상의 정보기록 및 재생장치
JP2638279B2 (ja) * 1990-09-28 1997-08-06 ティアツク株式会社 光ディスク装置
DE4102857A1 (de) * 1991-01-31 1992-08-06 Thomson Brandt Gmbh Verfahren zum fokussieren eines lichtstrahls
JPH05159327A (ja) * 1991-12-05 1993-06-25 Hitachi Ltd 光学式ディスクプレーヤにおけるフォーカスサーチ回路
US5627818A (en) * 1992-10-13 1997-05-06 International Business Machines Corporation Optical disk with marks used for calibrating an optical detector to minimize noise from undesired perturbations in disk surfaces
DE4323067A1 (de) * 1993-07-10 1995-01-12 Thomson Brandt Gmbh G-Faktor-Abgleich
US5367513A (en) * 1993-11-05 1994-11-22 International Business Machines Corporation Focus and tracking servo decoupling system
DE4415508A1 (de) * 1994-05-03 1995-11-09 Thomson Brandt Gmbh Abtastgerät mit Adaptation
US5528577A (en) * 1994-10-19 1996-06-18 Sony Corporation Apparatus and method for reading at least partially unmetallized optical discs
US20040213115A1 (en) * 2001-05-11 2004-10-28 Hideki Nakata Optical head, disc recording/reproducing apparatus, and objective lens drive method
WO2003088229A1 (en) * 2002-04-17 2003-10-23 Koninklijke Philips Electronics N.V. Optical pickup
CN1331135C (zh) * 2002-09-17 2007-08-08 联发科技股份有限公司 功率补偿电路与方法及具有该功率补偿电路的光学装置
KR100529309B1 (ko) * 2002-10-07 2005-11-17 삼성전자주식회사 Ｄｖｄ 플레이어의 오프셋 조정 장치 및 방법
JP4152257B2 (ja) * 2003-05-26 2008-09-17 三洋電機株式会社 光ディスク用オフセット調整回路、集積回路、光ディスク装置、及びオフセット調整方法
US7313057B2 (en) * 2003-07-18 2007-12-25 Via Technologies, Inc. Method for adjusting a control parameter and optical disc drive server system using the same
JP2005116079A (ja) * 2003-10-08 2005-04-28 Matsushita Electric Ind Co Ltd ランドプリピットアドレス復調装置
JP2007026486A (ja) * 2005-07-12 2007-02-01 Toshiba Corp 受光素子回路及び光ディスク装置
WO2016146725A1 (en) * 2015-03-17 2016-09-22 Basf Se Optical data reader

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155527A (ja) * 1982-03-10 1983-09-16 Hitachi Ltd 光デイスクプレ−ヤのフオ−カス引き込み回路
JPS58215736A (ja) * 1982-06-07 1983-12-15 Pioneer Electronic Corp 光学式記録情報読取装置におけるサ−ボ装置
JPS61177646A (ja) * 1985-02-04 1986-08-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 光学デイスク装置
CA1261467A (en) * 1985-11-28 1989-09-26 Akira Minami Focus servomechanism control system of optical disc system having offset setting means
JPS63142533A (ja) * 1986-12-03 1988-06-14 Fujitsu Ltd 光学的記録再生装置
DE3715491A1 (de) * 1987-05-09 1988-11-17 Thomson Brandt Gmbh Geraet zur wiedergabe von daten
DE3732941A1 (de) * 1987-09-30 1989-04-20 Thomson Brandt Gmbh Geraet zur wiedergabe von daten

Also Published As

Publication number Publication date
DE58902327D1 (de) 1992-10-29
ATE80960T1 (de) 1992-10-15
JP2726131B2 (ja) 1998-03-11
GR3006012T3 (da) 1993-06-21
HUT53467A (en) 1990-10-28
DE3824039A1 (de) 1990-01-18
ES2035459T3 (es) 1993-04-16
DK67990A (da) 1990-05-15
HU894721D0 (en) 1990-06-28
EP0350939B1 (de) 1992-09-23
JPH03502979A (ja) 1991-07-04
MY104135A (en) 1994-02-28
KR0145299B1 (ko) 1998-07-01
KR900702517A (ko) 1990-12-07
CN1020007C (zh) 1993-03-03
WO1990000797A1 (de) 1990-01-25
DK67990D0 (da) 1990-03-15
EP0378650A1 (de) 1990-07-25
EP0350939A1 (de) 1990-01-17
US5148423A (en) 1992-09-15
CN1039919A (zh) 1990-02-21

Similar Documents

Publication Publication Date Title
HK8997A (en) Method and switching arrangement for the compensation of offset voltages in a focus and/or track-following circuit
US5189653A (en) Optical disk device eliminating offset of actuator and offset eliminating method used thereby
KR100285135B1 (ko) 광학적 정보재생방법 및 장치
US5109367A (en) Optical information recording and reproducing apparatus performing focus and/or track control by normalized error signals
KR100327748B1 (ko) 초점제어방법및광디스크장치
KR0146293B1 (ko) 광학주사장치
US5862111A (en) Optical disk device which performs auto gain control process on servo signals which perform illuminating control of a light beam on the disk's recording surface
US5764605A (en) G factor alignment
JP2941289B2 (ja) データ再生装置
KR960013487B1 (ko) 데이타 재생장치
US6862260B2 (en) Correction method, correction circuit, and light information storage apparatus
JP2602859B2 (ja) 記録担体のデータトラツクへ光ビームを案内するトラツク制御装置
KR960013488B1 (ko) 데이타 재생장치
JP2956770B2 (ja) データ再生装置
KR950003177B1 (ko) 틸트오프셋 자동조정장치
JPH1031828A (ja) フォーカスサーボ装置
JPH10162401A (ja) 光ディスク装置およびそのレーザダイオードの発光パワーの基準値補正方法
JPH0528525A (ja) 光デイスク装置のトラツク位置ずれ信号生成装置およびトラツキング制御装置
JP2965044B2 (ja) トラッキングエラー信号のオフセット補正装置
JP2605914B2 (ja) フォーカス制御装置
JPH0495227A (ja) トラッキング制御装置
JPH02192036A (ja) 光ディスク装置のトラッキング制御装置
JPH0668494A (ja) 光ディスク装置のトラックアクセス制御装置及びトラッキング制御装置
JPS63152030A (ja) 光デイスクのトラツキング制御方法
JPH0660400A (ja) トラッキングエラー信号オフセット補正装置

Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20090712