HK34989A - Apparatus for recording and/or reading information on an optically readable disc - Google Patents

Apparatus for recording and/or reading information on an optically readable disc

Info

Publication number
HK34989A
HK34989A HK349/89A HK34989A HK34989A HK 34989 A HK34989 A HK 34989A HK 349/89 A HK349/89 A HK 349/89A HK 34989 A HK34989 A HK 34989A HK 34989 A HK34989 A HK 34989A
Authority
HK
Hong Kong
Prior art keywords
recording
reading information
optically readable
readable disc
disc
Prior art date
Application number
HK349/89A
Other languages
English (en)
Inventor
Gerardus Lucien Mathild Jansen
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of HK34989A publication Critical patent/HK34989A/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
HK349/89A 1983-02-14 1989-04-27 Apparatus for recording and/or reading information on an optically readable disc HK34989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8300540 1983-02-14

Publications (1)

Publication Number Publication Date
HK34989A true HK34989A (en) 1989-05-05

Family

ID=19841410

Family Applications (1)

Application Number Title Priority Date Filing Date
HK349/89A HK34989A (en) 1983-02-14 1989-04-27 Apparatus for recording and/or reading information on an optically readable disc

Country Status (8)

Country Link
US (2) US4504935A (xx)
EP (1) EP0118626B1 (xx)
JP (1) JPS59148153A (xx)
CA (1) CA1213048A (xx)
DE (1) DE3373155D1 (xx)
ES (1) ES526601A0 (xx)
HK (1) HK34989A (xx)
SG (1) SG27888G (xx)

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NL8402777A (nl) * 1984-09-12 1986-04-01 Philips Nv Lensdrager ten behoeve van een electrodynamische inrichting voor het met een stralingsvlek inschrijven en/of aftasten van optische platen, alsmede een werkwijze voor het vervaardigen van een lensdrager.
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US4813033A (en) * 1985-10-30 1989-03-14 International Business Machines Corporation Two axis electromagnetic actuator with axis balanced suspension
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US4763314A (en) * 1986-08-13 1988-08-09 Optimem Linear actuator for an optical disk storage apparatus
JPH0719382B2 (ja) * 1986-08-20 1995-03-06 沖電気工業株式会社 対物レンズ駆動装置
US4922477A (en) * 1987-05-30 1990-05-01 Nec Home Electronics Ltd. Optical head unit
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US4945526A (en) * 1988-10-18 1990-07-31 Laser Magnetic Storage International Company Actuator assembly for optical disk systems
US5023861A (en) * 1988-12-20 1991-06-11 Literal Corporation Single stage tracking actuator apparatus for optical beam information storage drive system
DE69030514T2 (de) * 1989-02-10 1997-11-13 Toshiba Kawasaki Kk Gerät zum Antreiben einer Objektivlinse
US4956735A (en) * 1989-05-08 1990-09-11 Hewlett-Packard Company Actuator magnetic circuit
KR920002933B1 (ko) * 1989-05-25 1992-04-10 삼성전자 주식회사 광학적 정보기록 재생장치의 광 픽업구동장치
US5136558A (en) * 1989-06-20 1992-08-04 Applied Magnetics Corporation Two axis electromagnetic actuator
US6141300A (en) * 1989-06-20 2000-10-31 Discovision Associates Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
US5265079A (en) * 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
JPH0323523A (ja) * 1989-06-21 1991-01-31 Sony Corp 光学ヘッド装置
DE69026429T2 (de) * 1989-06-30 1996-11-14 Fuji Xerox Co Ltd Magnetooptisches Aufzeichnungs-/Wiedergabegerät
US5107372A (en) * 1989-09-06 1992-04-21 Daniel Gelbart Focus servo actuator for moving lens scanners
JPH03113758A (ja) * 1989-09-22 1991-05-15 Pioneer Electron Corp 光磁気ディスクプレーヤ
JPH03113757A (ja) * 1989-09-22 1991-05-15 Pioneer Electron Corp 光磁気ディスクプレーヤ
JP2937262B2 (ja) * 1989-11-27 1999-08-23 オリンパス光学工業株式会社 光学系駆動装置
JP2808767B2 (ja) * 1989-12-28 1998-10-08 富士ゼロックス株式会社 光ディスク装置
JPH03254425A (ja) * 1990-01-31 1991-11-13 Ricoh Co Ltd 光ディスクドライブ装置
JP2870112B2 (ja) * 1990-04-13 1999-03-10 三菱電機株式会社 フレキシブルディスク装置
JP2793698B2 (ja) * 1990-06-18 1998-09-03 株式会社リコー フオーカスオフセット補正方法
GB2248989B (en) * 1990-10-15 1995-05-24 Applied Magnetics Corp Focus sensing apparatus and method
US5245174A (en) * 1990-10-15 1993-09-14 Applied Magnetics Corporation Focus sensing apparatus utilizing a reflecting surface having variable reflectivity
US5313332A (en) * 1990-11-16 1994-05-17 Applied Magnetics Corporation Flexure suspension for two axis actuator
US5808980A (en) * 1991-02-15 1998-09-15 Discovision Associates Seek actuator for optical recording
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US6069857A (en) * 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
JPH056557A (ja) * 1991-06-28 1993-01-14 Toshiba Corp 光学装置
US5177640A (en) * 1991-10-08 1993-01-05 Applied Magnetics Corporation Two-axis moving coil actuator
US5220222A (en) * 1991-12-23 1993-06-15 Eastman Kodak Company Magnetic bushings for an optical access actuator
JP3116287B2 (ja) * 1992-02-03 2000-12-11 株式会社リコー 光学式情報記録再生装置
JP3317997B2 (ja) * 1992-06-03 2002-08-26 株式会社リコー 対物レンズ駆動装置
US5381288A (en) * 1992-06-16 1995-01-10 Applied Magnetics Corporation, Inc. Center moment suspension assembly
US5278820A (en) * 1992-09-28 1994-01-11 Eastman Kodak Company Apparatus and method for a radial access mechanism for a disk player/recorder
KR100200808B1 (ko) * 1992-11-30 1999-06-15 윤종용 광픽업 구동장치
JP2762930B2 (ja) * 1994-06-14 1998-06-11 日本電気株式会社 薄型内周外周アクセス光ヘッド
JPH0821946A (ja) * 1994-07-08 1996-01-23 Minolta Co Ltd 電気−機械変換素子を使用したレンズ装置駆動機構
US5748578A (en) * 1995-01-25 1998-05-05 Discovision Associates Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same
US5920539A (en) * 1995-01-25 1999-07-06 Discovision Associates Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor
US6091684A (en) * 1995-01-25 2000-07-18 Discovision Associates Optical disc system and method for changing the rotational rate of an information storage medium
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US5745470A (en) * 1995-05-31 1998-04-28 Kabushiki Kaisha Toshiba Head moving apparatus which cancels leakage flux
US6549507B1 (en) * 1999-06-11 2003-04-15 Acute Applied Technologies, Inc. Apparatus with ring shape sleeves
JP4395694B2 (ja) * 2001-06-14 2010-01-13 ソニー株式会社 対物レンズ駆動装置及びこれを備えたディスクドライブ装置
DE102005010868A1 (de) * 2005-03-07 2006-09-14 Deutsche Thomson-Brandt Gmbh Abtasteinrichtung für optische Speichermedien
US9581706B2 (en) * 2013-12-31 2017-02-28 Halliburton Energy Services, Inc. Geophone with tunable resonance frequency

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964903A (en) * 1958-05-09 1960-12-20 Gen Electric Thermal positioning device
NL7402768A (nl) * 1974-02-28 1975-09-01 Philips Nv Inrichting voor het schrijven en/of weergeven van informatie in respektievelijk van een draaiende schijfvormige registratiedrager.
NL164689C (nl) * 1975-03-10 1981-01-15 Philips Nv Optische focusseerinrichting voor het focusseren van een stralingsbundel.
JPS5718035A (en) * 1980-07-03 1982-01-29 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS57122030U (xx) * 1981-01-26 1982-07-29
JPS57147143A (en) * 1981-03-07 1982-09-10 Olympus Optical Co Ltd Objective lens driving device
JPS583139A (ja) * 1981-06-29 1983-01-08 Toshiba Corp 光デイスク用光学ヘツドの駆動機構
JP2563180B2 (ja) * 1987-07-27 1996-12-11 日本電信電話株式会社 半導体装置の製造方法

Also Published As

Publication number Publication date
US4504935A (en) 1985-03-12
DE3373155D1 (en) 1987-09-24
CA1213048A (en) 1986-10-21
EP0118626A1 (en) 1984-09-19
ES8406768A1 (es) 1984-07-01
US4607913A (en) 1986-08-26
ES526601A0 (es) 1984-07-01
SG27888G (en) 1988-09-30
JPS59148153A (ja) 1984-08-24
EP0118626B1 (en) 1987-08-19
JPH0580052B2 (xx) 1993-11-05

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