DE68915180D1 - Optische Aufzeichnung. - Google Patents
Optische Aufzeichnung.Info
- Publication number
- DE68915180D1 DE68915180D1 DE68915180T DE68915180T DE68915180D1 DE 68915180 D1 DE68915180 D1 DE 68915180D1 DE 68915180 T DE68915180 T DE 68915180T DE 68915180 T DE68915180 T DE 68915180T DE 68915180 D1 DE68915180 D1 DE 68915180D1
- Authority
- DE
- Germany
- Prior art keywords
- optical recording
- recording
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
- G11B7/0031—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent using a rotating head, e.g. helicoidal recording
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888803085A GB8803085D0 (en) | 1988-02-10 | 1988-02-10 | Optical recording |
GB888803084A GB8803084D0 (en) | 1988-02-10 | 1988-02-10 | Optical recording |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68915180D1 true DE68915180D1 (de) | 1994-06-16 |
DE68915180T2 DE68915180T2 (de) | 1994-11-24 |
Family
ID=26293466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68915180T Expired - Fee Related DE68915180T2 (de) | 1988-02-10 | 1989-02-02 | Optische Aufzeichnung. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5097457A (de) |
EP (1) | EP0329304B1 (de) |
JP (1) | JPH01267845A (de) |
CA (1) | CA1323422C (de) |
DE (1) | DE68915180T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5343458A (en) * | 1992-09-15 | 1994-08-30 | Samsung Electronics Co., Ltd. | Method of storing digital video, audio and control information on an an optical storage medium |
US5321683A (en) * | 1992-12-28 | 1994-06-14 | Eastman Kodak Company | Digital optical tape read system |
US5524105A (en) * | 1992-12-29 | 1996-06-04 | Eastman Kodak Company | Helical optical tape read/write system using at least one laser array |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5753831A (en) * | 1980-09-12 | 1982-03-31 | Olympus Optical Co Ltd | Method and device for reproduction of optical information |
JPS5788535A (en) * | 1980-11-20 | 1982-06-02 | Sharp Corp | Pickup device |
JPS57158004A (en) * | 1981-03-24 | 1982-09-29 | Toshiba Corp | Magnetic transfer recorder |
JPH0687316B2 (ja) * | 1983-02-10 | 1994-11-02 | オリンパス光学工業株式会社 | 光学式再生装置 |
JPS6063748A (ja) * | 1983-09-19 | 1985-04-12 | Olympus Optical Co Ltd | 光磁気ピツクアツプ装置 |
JPS60131648A (ja) * | 1983-12-19 | 1985-07-13 | Toshiba Corp | 光学ヘツド |
US4694447A (en) * | 1984-07-12 | 1987-09-15 | International Business Machines Corp. | Optical signal recorders employing two lasers and methods therefor |
US4633455A (en) * | 1985-03-25 | 1986-12-30 | Rca Corporation | Headwheel for a multiple beam optical tape playback system |
US4654549A (en) * | 1985-06-04 | 1987-03-31 | Fairchild Semiconductor Corporation | Transistor-transistor logic to emitter coupled logic translator |
-
1989
- 1989-02-02 DE DE68915180T patent/DE68915180T2/de not_active Expired - Fee Related
- 1989-02-02 EP EP89301014A patent/EP0329304B1/de not_active Expired - Lifetime
- 1989-02-03 CA CA000590149A patent/CA1323422C/en not_active Expired - Fee Related
- 1989-02-09 US US07/307,924 patent/US5097457A/en not_active Expired - Fee Related
- 1989-02-09 JP JP1028835A patent/JPH01267845A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US5097457A (en) | 1992-03-17 |
EP0329304B1 (de) | 1994-05-11 |
DE68915180T2 (de) | 1994-11-24 |
JPH01267845A (ja) | 1989-10-25 |
EP0329304A2 (de) | 1989-08-23 |
CA1323422C (en) | 1993-10-19 |
EP0329304A3 (en) | 1990-11-28 |
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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 | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: CENTRAL RESEARCH LABORATORIES LTD., HAYES, MIDDLES |