DE3887078T2 - Optisches Informationswiedergabegerät. - Google Patents

Optisches Informationswiedergabegerät.

Info

Publication number
DE3887078T2
DE3887078T2 DE88115610T DE3887078T DE3887078T2 DE 3887078 T2 DE3887078 T2 DE 3887078T2 DE 88115610 T DE88115610 T DE 88115610T DE 3887078 T DE3887078 T DE 3887078T DE 3887078 T2 DE3887078 T2 DE 3887078T2
Authority
DE
Germany
Prior art keywords
optical information
reproduction device
information reproduction
optical
reproduction
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
DE88115610T
Other languages
English (en)
Other versions
DE3887078D1 (de
Inventor
Satoshi Pioneer Electr Sugiura
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17536553&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3887078(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Application granted granted Critical
Publication of DE3887078D1 publication Critical patent/DE3887078D1/de
Publication of DE3887078T2 publication Critical patent/DE3887078T2/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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
DE88115610T 1987-10-29 1988-09-22 Optisches Informationswiedergabegerät. Expired - Fee Related DE3887078T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62274070A JP2911449B2 (ja) 1987-10-29 1987-10-29 光学式情報読取装置

Publications (2)

Publication Number Publication Date
DE3887078D1 DE3887078D1 (de) 1994-02-24
DE3887078T2 true DE3887078T2 (de) 1994-04-28

Family

ID=17536553

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88115610T Expired - Fee Related DE3887078T2 (de) 1987-10-29 1988-09-22 Optisches Informationswiedergabegerät.

Country Status (4)

Country Link
US (1) US5027336A (de)
EP (1) EP0313818B1 (de)
JP (1) JP2911449B2 (de)
DE (1) DE3887078T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69115732T2 (de) * 1990-02-22 1996-05-30 Victor Company Of Japan Vorrichtung zur Feststellung der Neigung einer optischen Platte
JP2998807B2 (ja) * 1990-07-19 2000-01-17 パイオニア株式会社 光学式ディスクプレーヤ
DE4028703A1 (de) * 1990-09-10 1992-03-12 Thomson Brandt Gmbh Verfahren zum messen oder regeln des radial- und tangentialwinkels eines lichtstrahls
US5412640A (en) * 1990-09-10 1995-05-02 Deutsche Thomson-Brandt Gmbh Method for measuring and regulating the radial and tangential angles of a light beam
EP0498246B1 (de) * 1991-02-06 1997-01-02 Blaupunkt-Werke GmbH Verfahren zur Korrektur eines Fehlwinkels
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
DE69229451T2 (de) * 1991-11-20 1999-10-07 Sony Corp Optische Abtasteinrichtung
US5442615A (en) * 1991-11-20 1995-08-15 Sony Corporation Optical plate for correcting comatic aberration
US5617388A (en) * 1993-05-31 1997-04-01 Sony Corporation Disc recording/reproducing apparatus which uses stored eccentricity data to maintain the read/write head at a constant radial position during a stand-by mode
KR950007129U (ko) * 1993-08-17 1995-03-21 틸트 센서 출력에 의한 리프트 제어장치
JP3161891B2 (ja) * 1993-11-16 2001-04-25 松下電器産業株式会社 ディスクチルト検出装置およびディスクチルト補正装置
JP3326946B2 (ja) * 1994-01-10 2002-09-24 ソニー株式会社 光ディスク再生装置及び光ディスク再生方法
JP3489271B2 (ja) * 1995-06-16 2004-01-19 ソニー株式会社 ディスク駆動装置および傾き調整方法
US5768228A (en) * 1996-09-09 1998-06-16 International Business Machines Corporation Method and sytem for cancelling optical servo crosstalk in optical disk drives
JP3491191B2 (ja) * 1997-08-19 2004-01-26 富士通株式会社 光磁気記録媒体のチルト補正方法、その実施に使用する装置及び光磁気記録媒体
EP0936602B1 (de) * 1998-02-13 2006-09-20 Yamaha Corporation Aufzeichnungstechnik für optische Platten zur Bildung von genau spurzentrierten Pits und Servoabgleicheinstellungstechnik zur Aufzeichnung auf optischen Platten
JP3545196B2 (ja) * 1998-03-20 2004-07-21 パイオニア株式会社 チルトサーボ制御装置
JPH11273116A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 光学的情報記憶装置
DE69933830T2 (de) 1998-09-14 2007-06-28 Matsushita Electric Industrial Co., Ltd., Kadoma Neigungserkennungsvorrichtung, optisches Plattengerät, und Neigungssteuerverfahren
JP4075179B2 (ja) * 1999-01-07 2008-04-16 ソニー株式会社 ディスク記録及び／又は再生装置及びディスク記録及び／又は再生方法
JP2006185482A (ja) * 2004-12-27 2006-07-13 Toshiba Corp 光ピックアップチルト補正制御装置およびチルト補正方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8103117A (nl) * 1981-06-29 1983-01-17 Philips Nv Inrichting voor het beschrijven en/of uitlezen van een registratiedrager.
DE2910675A1 (de) * 1979-03-19 1980-10-02 Basf Ag Verfahren zur kontinuierlichen herstellung von propylenchlorhydrinen
US4271334A (en) * 1979-04-06 1981-06-02 Discovision Associates Apparatus for correcting for temperature-induced tracking errors in a system for recovering information from a recording disc
JPS5720928A (en) * 1980-07-09 1982-02-03 Toshiba Corp Optical disk reproduction system
US4466087A (en) * 1981-01-08 1984-08-14 Xerox Corporation Optical memory system for a reading/writing, verifying and tracking module
JPS57120238A (en) * 1981-01-16 1982-07-27 Matsushita Electric Ind Co Ltd Reproducing device
NL8105346A (de) * 1981-11-26 1983-06-16
CA1255385A (en) * 1985-01-31 1989-06-06 Shigeru Arai Track servo system for controllably projecting an optical beam to an optical disk
US4748609A (en) * 1985-03-29 1988-05-31 Hitachi, Ltd. Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset

Also Published As

Publication number Publication date
EP0313818A3 (en) 1989-07-19
EP0313818B1 (de) 1994-01-12
DE3887078D1 (de) 1994-02-24
US5027336A (en) 1991-06-25
EP0313818A2 (de) 1989-05-03
JP2911449B2 (ja) 1999-06-23
JPH01116931A (ja) 1989-05-09

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8320 Willingness to grant licences declared (paragraph 23)
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee