DE3701144A1 - Servoschaltung - Google Patents

Servoschaltung

Info

Publication number
DE3701144A1
DE3701144A1 DE19873701144 DE3701144A DE3701144A1 DE 3701144 A1 DE3701144 A1 DE 3701144A1 DE 19873701144 DE19873701144 DE 19873701144 DE 3701144 A DE3701144 A DE 3701144A DE 3701144 A1 DE3701144 A1 DE 3701144A1
Authority
DE
Germany
Prior art keywords
signal
output signals
servo
output
circuit
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.)
Granted
Application number
DE19873701144
Other languages
German (de)
English (en)
Other versions
DE3701144C2 (enExample
Inventor
Toshihiko Benii
Kyosuke Yoshimoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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
Priority claimed from JP826586A external-priority patent/JPS62165201A/ja
Priority claimed from JP1845186A external-priority patent/JPS62174812A/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3701144A1 publication Critical patent/DE3701144A1/de
Application granted granted Critical
Publication of DE3701144C2 publication Critical patent/DE3701144C2/de
Granted 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
    • G11B7/09—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
DE19873701144 1986-01-16 1987-01-16 Servoschaltung Granted DE3701144A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP826586A JPS62165201A (ja) 1986-01-16 1986-01-16 サ−ボ回路
JP1845186A JPS62174812A (ja) 1986-01-28 1986-01-28 サ−ボ回路方式

Publications (2)

Publication Number Publication Date
DE3701144A1 true DE3701144A1 (de) 1987-07-23
DE3701144C2 DE3701144C2 (enExample) 1993-09-16

Family

ID=26342756

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873701144 Granted DE3701144A1 (de) 1986-01-16 1987-01-16 Servoschaltung

Country Status (3)

Country Link
US (1) US4812726A (enExample)
DE (1) DE3701144A1 (enExample)
NL (1) NL194811C (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3833330A1 (de) * 1987-09-30 1989-04-20 Toshiba Kawasaki Kk Signalverarbeitungsvorrichtung und verfahren zum liefern genauer digitaldaten mit einfachem aufbau
DE3844119A1 (de) * 1987-12-28 1989-07-13 Toshiba Kawasaki Kk Optisches aufzeichnungs/wiedergabegeraet
DE4020624A1 (de) * 1989-06-29 1991-01-10 Mitsubishi Electric Corp Servosteuerungsvorrichtung

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740551C2 (de) 1986-11-29 1996-09-19 Papst Motoren Gmbh & Co Kg Datenspeichergerät mit einem rotierenden Datenträger
DE3715491A1 (de) * 1987-05-09 1988-11-17 Thomson Brandt Gmbh Geraet zur wiedergabe von daten
US4941082A (en) * 1988-04-25 1990-07-10 Electro Scientific Industries, Inc. Light beam positioning system
US5251194A (en) * 1989-04-17 1993-10-05 Mitsubishi Denki Kabushiki Kaisha Techniques for controlling beam position and focus in optical disk drives
US5132602A (en) * 1990-10-02 1992-07-21 Calsonic International, Inc. Actuator positioning apparatus
JP3444093B2 (ja) * 1996-06-10 2003-09-08 株式会社デンソー 光センサ回路
CN1127724C (zh) * 1997-04-25 2003-11-12 皇家菲利浦电子有限公司 扫描光可读记录载体的装置和检测单元
KR100518514B1 (ko) 1998-02-20 2005-11-24 삼성전자주식회사 하드 디스크 드라이브에서 엑츄에이터 온트랙 제어장치및 그방법
US6762902B2 (en) 2000-12-15 2004-07-13 Samsung Electronics Co., Ltd. Time-varying, non-synchronous disturbance identification and cancellation in a rotating disk storage device
KR100870033B1 (ko) * 2001-01-16 2008-11-21 기븐 이미징 리미티드 체강의 광시야 영상화 시스템 및 방법
JP4256256B2 (ja) 2001-06-18 2009-04-22 ギブン イメージング リミテッド 硬質の区域および軟質の区域を有する回路基板を備えた生体内センシング装置
US7833151B2 (en) * 2002-12-26 2010-11-16 Given Imaging Ltd. In vivo imaging device with two imagers
TWI406690B (zh) * 2004-02-26 2013-09-01 Semiconductor Energy Lab 運動器具，娛樂工具，和訓練工具
US20060217593A1 (en) * 2005-03-24 2006-09-28 Zvika Gilad Device, system and method of panoramic multiple field of view imaging
EP2005214A4 (en) * 2006-03-30 2012-04-18 Given Imaging Ltd IN VIVO DETECTION DEVICE AND METHOD FOR COMMUNICATING BETWEEN IMAGING DEVICES AND CORRESPONDING PROCESSOR
US20080161647A1 (en) * 2006-12-27 2008-07-03 Amit Pascal Device and method for multiple illumination fields of an in-vivo imaging device
WO2009014155A1 (en) * 2007-07-25 2009-01-29 Semiconductor Energy Laboratory Co., Ltd. Photoelectric conversion device and electronic device having the same
US8516691B2 (en) 2009-06-24 2013-08-27 Given Imaging Ltd. Method of assembly of an in vivo imaging device with a flexible circuit board

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438252A1 (de) * 1983-10-19 1985-05-15 Pioneer Electronic Corp., Tokio/Tokyo Fokussierungsfehlerdetektoreinrichtung fuer ein optisches aufzeichnungs- und wiedergabegeraet
EP0162702A1 (en) * 1984-05-23 1985-11-27 Sony Corporation Tracking control arrangements for use in optical disc players

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739247A (en) * 1971-05-17 1973-06-12 Canon Kk Positioning device using photoelectric scanning
US4183060A (en) * 1976-03-19 1980-01-08 Rca Corporation Capacitance distance sensor apparatus for video disc player/recorder
JPS555923A (en) * 1978-06-27 1980-01-17 Nippon Yuuboard Kogyo Kk Production of rigid urethane block utilizing the waste of rigid foamed urethane
JPS6030016B2 (ja) * 1979-09-25 1985-07-13 日本ビクター株式会社 円盤状記録媒体記録及び／又は再生装置のサ−ボ方式
US4492465A (en) * 1980-12-18 1985-01-08 The Boeing Company Retro-reflective electro-optical angle measuring system
JPS57193818A (en) * 1981-05-25 1982-11-29 Toshiba Corp Positioning device
US4498129A (en) * 1981-07-02 1985-02-05 Irwin Magnetic Systems, Inc. Method and apparatus for normalizing servo-positioning signals
JPS5828654A (ja) * 1981-07-14 1983-02-19 Sumitomo Metal Ind Ltd スロツピング予知方法
JPS5828655A (ja) * 1981-08-13 1983-02-19 Rigaku Denki Kk 単結晶体の切断面検査装置
JPS5828653A (ja) * 1981-08-13 1983-02-19 Nec Corp 材料表面欠陥検出装置
JPS5848104A (ja) * 1981-09-16 1983-03-22 Motoda Electronics Co Ltd 移動体制御方式
JPS5885940A (ja) * 1981-11-17 1983-05-23 Hitachi Ltd 光デイスクの自動焦点引込み方法
DE3214375C2 (de) * 1982-04-20 1986-09-04 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Einrichtung zur Bestimmung der Lage eines Satelliten
JP2607237B2 (ja) * 1984-01-10 1997-05-07 シャープ株式会社 光集束位置制御装置
JPS60136070A (ja) * 1983-12-23 1985-07-19 Nec Corp サ−ボトラツク書込み装置
JPS60154336A (ja) * 1984-01-24 1985-08-14 Foster Denki Kk サ−ボ回路装置
JPS60182521A (ja) * 1984-02-29 1985-09-18 Nec Home Electronics Ltd 光ピツクアツプの調整装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438252A1 (de) * 1983-10-19 1985-05-15 Pioneer Electronic Corp., Tokio/Tokyo Fokussierungsfehlerdetektoreinrichtung fuer ein optisches aufzeichnungs- und wiedergabegeraet
EP0162702A1 (en) * 1984-05-23 1985-11-27 Sony Corporation Tracking control arrangements for use in optical disc players

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-B., W.-R. LANGE: Digital-Analog, Analog-Digital-Wandlung, Oldenbourg Verlag GmbH, München 1974, S. 15-25, 98,99 u. 106-109 -ISBN 3-486-34341-6 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3833330A1 (de) * 1987-09-30 1989-04-20 Toshiba Kawasaki Kk Signalverarbeitungsvorrichtung und verfahren zum liefern genauer digitaldaten mit einfachem aufbau
DE3833330C2 (de) * 1987-09-30 1998-09-17 Toshiba Kawasaki Kk Vorrichtung zum Erfassen eines Lichstrahls von einem optischen Speicher
DE3844119A1 (de) * 1987-12-28 1989-07-13 Toshiba Kawasaki Kk Optisches aufzeichnungs/wiedergabegeraet
US5018121A (en) * 1987-12-28 1991-05-21 Kabushiki Kaisha Toshiba Optical recording/reproducing focusing apparatus
DE4020624A1 (de) * 1989-06-29 1991-01-10 Mitsubishi Electric Corp Servosteuerungsvorrichtung
DE4020624C2 (de) * 1989-06-29 2000-01-05 Mitsubishi Electric Corp Servosteuerungsvorrichtung

Also Published As

Publication number Publication date
NL8700082A (nl) 1987-08-17
NL194811B (nl) 2002-11-01
DE3701144C2 (enExample) 1993-09-16
NL194811C (nl) 2003-03-04
US4812726A (en) 1989-03-14

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition