DE69222358T2 - Optisches Informationsaufzeichnungs- und Wiedergabegerät - Google Patents
Optisches Informationsaufzeichnungs- und WiedergabegerätInfo
- Publication number
- DE69222358T2 DE69222358T2 DE69222358T DE69222358T DE69222358T2 DE 69222358 T2 DE69222358 T2 DE 69222358T2 DE 69222358 T DE69222358 T DE 69222358T DE 69222358 T DE69222358 T DE 69222358T DE 69222358 T2 DE69222358 T2 DE 69222358T2
- Authority
- DE
- Germany
- Prior art keywords
- information recording
- playback device
- optical information
- playback
- optical
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3100218A JP3040522B2 (ja) | 1991-05-01 | 1991-05-01 | 光学式情報記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69222358D1 DE69222358D1 (de) | 1997-10-30 |
DE69222358T2 true DE69222358T2 (de) | 1998-01-29 |
Family
ID=14268164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69222358T Expired - Fee Related DE69222358T2 (de) | 1991-05-01 | 1992-04-28 | Optisches Informationsaufzeichnungs- und Wiedergabegerät |
Country Status (5)
Country | Link |
---|---|
US (1) | US5367515A (de) |
EP (1) | EP0518042B1 (de) |
JP (1) | JP3040522B2 (de) |
CA (1) | CA2067654C (de) |
DE (1) | DE69222358T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7643396B2 (en) | 2005-05-31 | 2010-01-05 | Funai Electric Co. Ltd. | Output voltage adjusting method for laser power monitoring |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2691937B1 (fr) * | 1992-06-03 | 1994-07-22 | Alsthom Gec | Caisse de vehicule ferroviaire en acier inoxydable. |
JP2934684B2 (ja) * | 1993-09-10 | 1999-08-16 | 株式会社日本コンラックス | 光学式情報記録再生システム及び該システムにおけるトラッキング制御装置 |
JPH09274723A (ja) * | 1996-01-17 | 1997-10-21 | Nikon Corp | 情報再生方法および情報再生装置 |
US20070242321A1 (en) * | 2005-03-22 | 2007-10-18 | Tkd Corporation | Holographic Recording Medium and Recording and Reproducing Method Thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5911546A (ja) * | 1982-07-12 | 1984-01-21 | Matsushita Electric Ind Co Ltd | トラツク飛び検出制御装置 |
DE3571356D1 (en) * | 1984-03-24 | 1989-08-10 | Sony Corp | Optical disk player |
JPS629535A (ja) * | 1985-07-08 | 1987-01-17 | Toshiba Corp | 光学式デイスク再生装置のフオ−カス制御回路 |
JPS62219247A (ja) * | 1986-03-20 | 1987-09-26 | Canon Inc | 光記録媒体およびその光記録方法 |
EP0407573B1 (de) * | 1987-02-27 | 1993-12-15 | Sony Corporation | Plattenaufzeichnungsgerät |
JP2611220B2 (ja) * | 1987-04-15 | 1997-05-21 | ソニー株式会社 | レーザ再生装置 |
-
1991
- 1991-05-01 JP JP3100218A patent/JP3040522B2/ja not_active Expired - Lifetime
-
1992
- 1992-04-27 US US07/874,089 patent/US5367515A/en not_active Expired - Fee Related
- 1992-04-28 DE DE69222358T patent/DE69222358T2/de not_active Expired - Fee Related
- 1992-04-28 EP EP92107237A patent/EP0518042B1/de not_active Expired - Lifetime
- 1992-04-30 CA CA002067654A patent/CA2067654C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7643396B2 (en) | 2005-05-31 | 2010-01-05 | Funai Electric Co. Ltd. | Output voltage adjusting method for laser power monitoring |
Also Published As
Publication number | Publication date |
---|---|
US5367515A (en) | 1994-11-22 |
EP0518042B1 (de) | 1997-09-24 |
CA2067654A1 (en) | 1992-11-02 |
JP3040522B2 (ja) | 2000-05-15 |
CA2067654C (en) | 1998-12-08 |
JPH04330647A (ja) | 1992-11-18 |
EP0518042A1 (de) | 1992-12-16 |
DE69222358D1 (de) | 1997-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT |
|
8339 | Ceased/non-payment of the annual fee |