DE68920250T2 - Spursignal in einem optischen Informationsaufzeichnungs- und/oder -wiedergabegerät. - Google Patents
Spursignal in einem optischen Informationsaufzeichnungs- und/oder -wiedergabegerät.Info
- Publication number
- DE68920250T2 DE68920250T2 DE68920250T DE68920250T DE68920250T2 DE 68920250 T2 DE68920250 T2 DE 68920250T2 DE 68920250 T DE68920250 T DE 68920250T DE 68920250 T DE68920250 T DE 68920250T DE 68920250 T2 DE68920250 T2 DE 68920250T2
- Authority
- DE
- Germany
- Prior art keywords
- information recording
- optical information
- reproducing device
- track signal
- track
- 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
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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63252999A JPH069087B2 (ja) | 1988-10-06 | 1988-10-06 | 光学的情報記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68920250D1 DE68920250D1 (de) | 1995-02-09 |
DE68920250T2 true DE68920250T2 (de) | 1995-05-11 |
Family
ID=17245079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68920250T Expired - Fee Related DE68920250T2 (de) | 1988-10-06 | 1989-09-11 | Spursignal in einem optischen Informationsaufzeichnungs- und/oder -wiedergabegerät. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5140573A (de) |
EP (1) | EP0363022B1 (de) |
JP (1) | JPH069087B2 (de) |
DE (1) | DE68920250T2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0778884B2 (ja) * | 1990-09-27 | 1995-08-23 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | 光学ディスク駆動装置及び光学ディスクのトラック数のカウント方法 |
JPH04149824A (ja) * | 1990-10-12 | 1992-05-22 | Pioneer Electron Corp | 光ディスクの情報読取装置 |
JPH04254919A (ja) * | 1991-02-07 | 1992-09-10 | Hitachi Ltd | トラッキング制御方法及び装置 |
JP2682748B2 (ja) * | 1991-03-05 | 1997-11-26 | 富士通株式会社 | 光記録媒体のトラック横断信号作成回路 |
US5197058A (en) * | 1991-03-05 | 1993-03-23 | Hewlett-Packard Company | Electronic offset compensation of the continuous composite track error signal in optical recording |
JP2778389B2 (ja) * | 1992-11-05 | 1998-07-23 | 松下電器産業株式会社 | 光ディスク装置 |
JPH06309679A (ja) * | 1993-04-27 | 1994-11-04 | Canon Inc | 光学的情報記録再生装置 |
WO1995031806A1 (fr) * | 1994-05-17 | 1995-11-23 | Sony Corporation | Servomecanisme de poursuite de piste et dispositif de comptage de pistes |
US5719836A (en) | 1995-04-07 | 1998-02-17 | Discovision Associates | Optical seeking method and apparatus generating track count signal from tracking error signal and data signal |
JP3595992B2 (ja) * | 1996-05-22 | 2004-12-02 | ソニー株式会社 | 記録媒体駆動装置および記録媒体駆動方法 |
JPH10112043A (ja) * | 1996-10-04 | 1998-04-28 | Sony Corp | 再生装置 |
JPH10134369A (ja) * | 1996-10-31 | 1998-05-22 | Sanyo Electric Co Ltd | 光ディスク再生装置のトラック検出回路 |
JP2000030263A (ja) | 1998-07-10 | 2000-01-28 | Victor Co Of Japan Ltd | 光学的記録媒体読取り装置 |
KR100333332B1 (ko) * | 1998-12-17 | 2002-06-20 | 윤종용 | 미러신호 검출을 위한 회로 및 방법과 그를위한 광디스크 장치? |
JP4109919B2 (ja) * | 2002-07-19 | 2008-07-02 | キヤノン株式会社 | 光学的情報再生装置 |
US20050180276A1 (en) * | 2004-02-17 | 2005-08-18 | Canon Kabushiki Kaisha | Optical information recording and reproducing apparatus |
JP4550712B2 (ja) * | 2005-10-17 | 2010-09-22 | ルネサスエレクトロニクス株式会社 | 受光回路 |
JP2007184039A (ja) | 2006-01-06 | 2007-07-19 | Canon Inc | 情報記録装置 |
JP2008211808A (ja) * | 2008-03-07 | 2008-09-11 | Matsushita Electric Ind Co Ltd | レファレンス電圧発生回路とそれを用いた電圧増幅器 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2349191A1 (fr) * | 1976-04-23 | 1977-11-18 | Thomson Brandt | Lecteur optique de disque d'information comportant un dispositif d'acces automatique aux informations |
JPS5690434A (en) * | 1979-12-19 | 1981-07-22 | Hitachi Ltd | Optical information reproducing device |
US4530079A (en) * | 1983-03-23 | 1985-07-16 | Xerox Corporation | Track following system for optical disc drive |
JP2724996B2 (ja) * | 1983-12-20 | 1998-03-09 | パイオニア株式会社 | 相対位置検出装置 |
DE3678311D1 (de) * | 1985-02-15 | 1991-05-02 | Hitachi Ltd | Optisches plattengeraet. |
JPS61283034A (ja) * | 1985-06-07 | 1986-12-13 | Nec Corp | 光デイスクシステムにおけるトラツクアクセス装置 |
CA1270559A (en) * | 1985-10-30 | 1990-06-19 | Shigeo Terashima | Tracking circuit for an optical information recording and reproducing apparatus |
US4769613A (en) * | 1985-12-05 | 1988-09-06 | Nec Corporation | Digitalized amplitude detection circuit for analog input signal |
JPH01169741A (ja) * | 1987-12-24 | 1989-07-05 | Nec Corp | トラック極性検出装置 |
-
1988
- 1988-10-06 JP JP63252999A patent/JPH069087B2/ja not_active Expired - Lifetime
-
1989
- 1989-09-08 US US07/404,564 patent/US5140573A/en not_active Expired - Lifetime
- 1989-09-11 EP EP89309181A patent/EP0363022B1/de not_active Expired - Lifetime
- 1989-09-11 DE DE68920250T patent/DE68920250T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH069087B2 (ja) | 1994-02-02 |
EP0363022A2 (de) | 1990-04-11 |
US5140573A (en) | 1992-08-18 |
DE68920250D1 (de) | 1995-02-09 |
JPH02101637A (ja) | 1990-04-13 |
EP0363022A3 (de) | 1991-07-03 |
EP0363022B1 (de) | 1994-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |