DE69311149D1 - Servospurfolgekreis für Gerät für optische Scheiben - Google Patents

Servospurfolgekreis für Gerät für optische Scheiben

Info

Publication number
DE69311149D1
DE69311149D1 DE69311149T DE69311149T DE69311149D1 DE 69311149 D1 DE69311149 D1 DE 69311149D1 DE 69311149 T DE69311149 T DE 69311149T DE 69311149 T DE69311149 T DE 69311149T DE 69311149 D1 DE69311149 D1 DE 69311149D1
Authority
DE
Germany
Prior art keywords
optical disc
disc device
tracking circuit
servo tracking
servo
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.)
Expired - Fee Related
Application number
DE69311149T
Other languages
English (en)
Other versions
DE69311149T2 (de
Inventor
Satoshi Furuta
Shigenori Yanagi
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.)
Panasonic Corp
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69311149D1 publication Critical patent/DE69311149D1/de
Publication of DE69311149T2 publication Critical patent/DE69311149T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/0901—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
DE69311149T 1992-02-14 1993-02-12 Servospurfolgekreis für Gerät für optische Scheiben Expired - Fee Related DE69311149T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4028055A JP2716902B2 (ja) 1992-02-14 1992-02-14 光ディスク装置

Publications (2)

Publication Number Publication Date
DE69311149D1 true DE69311149D1 (de) 1997-07-10
DE69311149T2 DE69311149T2 (de) 1997-09-18

Family

ID=12238077

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69311149T Expired - Fee Related DE69311149T2 (de) 1992-02-14 1993-02-12 Servospurfolgekreis für Gerät für optische Scheiben

Country Status (4)

Country Link
US (1) US5410528A (de)
EP (1) EP0555865B1 (de)
JP (1) JP2716902B2 (de)
DE (1) DE69311149T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3479149B2 (ja) * 1995-03-30 2003-12-15 富士通株式会社 ディスク装置
US7589039B2 (en) * 2004-12-29 2009-09-15 Corning Incorporated Synthetic silica having low polarization-induced birefringence, method of making same and lithographic device comprising same
US20060285453A1 (en) * 2005-06-20 2006-12-21 Chung-Jen Kuo Method and apparatus for stablizing servo closed-loop gain, pll clock and servo signal through setting appropriate gain value to servo closed-loop gain and holding pll clock and servo signal when power of pick-up head changes
CN106100745B (zh) * 2016-06-28 2018-10-19 青岛海信宽带多媒体技术有限公司 一种光模块

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938184A (en) * 1975-03-21 1976-02-10 The United States Of America As Represented By The Secretary Of The Navy Digital flutter reduction system
JPS58125241A (ja) * 1982-01-20 1983-07-26 Matsushita Electric Ind Co Ltd 光学記録再生装置
DE3348177C2 (de) * 1982-10-15 1989-07-20 Pioneer Electronic Corp., Tokio/Tokyo, Jp
US5214545A (en) * 1983-11-02 1993-05-25 Canon Kabushiki Kaisha Signal erasing apparatus
JPS6196583A (ja) * 1984-10-17 1986-05-15 Sony Corp ディスク記録再生装置
JPS61129778A (ja) * 1984-11-28 1986-06-17 Pioneer Electronic Corp デイスク再生方式
US5062009A (en) * 1985-03-19 1991-10-29 Canon Kabushiki Kaisha Recording and/or reproducing apparatus having, in addition to a recording medium, memory means for memorizing information reproduced from the recording medium
JPS61217954A (ja) * 1985-03-25 1986-09-27 Sony Corp 記録再生装置
US4825307A (en) * 1985-09-30 1989-04-25 Canon Kabushiki Kaisha Information signal recording apparatus
US4866691A (en) * 1987-03-13 1989-09-12 Pioneer Electronic Corporation AC amplifying RF signal processing circuit for optical disk player
US4982392A (en) * 1987-07-10 1991-01-01 Ricoh Company, Ltd. Stabilized optical pick-up device inhibiting the effect of the focus error signal at the start and end of a data region
US5146440A (en) * 1988-08-29 1992-09-08 Matsushita Electric Industrial Co., Ltd. Track search apparatus
JP2523165B2 (ja) * 1988-09-01 1996-08-07 富士通株式会社 光ディスクのサ―ボ制御装置
JP2663616B2 (ja) * 1989-03-07 1997-10-15 松下電器産業株式会社 トラック検索装置
JPH04265530A (ja) * 1991-02-19 1992-09-21 Oki Electric Ind Co Ltd 光ディスク装置

Also Published As

Publication number Publication date
JP2716902B2 (ja) 1998-02-18
EP0555865A3 (en) 1993-12-01
DE69311149T2 (de) 1997-09-18
JPH05225569A (ja) 1993-09-03
EP0555865A2 (de) 1993-08-18
US5410528A (en) 1995-04-25
EP0555865B1 (de) 1997-06-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

8339 Ceased/non-payment of the annual fee