GB2126406B - Optical data retrieval system for multi-characteristic reflective data storage media - Google Patents
Optical data retrieval system for multi-characteristic reflective data storage mediaInfo
- Publication number
- GB2126406B GB2126406B GB08320087A GB8320087A GB2126406B GB 2126406 B GB2126406 B GB 2126406B GB 08320087 A GB08320087 A GB 08320087A GB 8320087 A GB8320087 A GB 8320087A GB 2126406 B GB2126406 B GB 2126406B
- Authority
- GB
- United Kingdom
- Prior art keywords
- storage media
- retrieval system
- data storage
- optical data
- characteristic reflective
- 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
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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- 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
-
- 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
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
-
- 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
- G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40671982A | 1982-08-09 | 1982-08-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8320087D0 GB8320087D0 (en) | 1983-08-24 |
| GB2126406A GB2126406A (en) | 1984-03-21 |
| GB2126406B true GB2126406B (en) | 1986-12-17 |
Family
ID=23609170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08320087A Expired GB2126406B (en) | 1982-08-09 | 1983-07-26 | Optical data retrieval system for multi-characteristic reflective data storage media |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5952436A (en) |
| CA (1) | CA1200609A (en) |
| DE (1) | DE3328368A1 (en) |
| GB (1) | GB2126406B (en) |
| SE (1) | SE8304295L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570252A (en) * | 1982-08-09 | 1986-02-11 | Drexler Technology Corporation | Optical data retrieval system using multi-spectral light sources |
| DE3567303D1 (en) * | 1984-10-29 | 1989-02-09 | Ncr Co | Optical data reader |
| JP2552109B2 (en) * | 1985-11-08 | 1996-11-06 | セイコーエプソン株式会社 | Optical recording / reproducing device |
| DE3776183D1 (en) * | 1986-04-09 | 1992-03-05 | Canon Kk | OPTICAL INFORMATION MEDIUM AND DEVICE FOR REPRESENTING INFORMATION FROM, AND / OR RECORDING INFORMATION ON SUCH A MEDIUM. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145758A (en) * | 1977-10-25 | 1979-03-20 | Drexler Technology Corporation | Error checking method and apparatus for digital data in optical recording systems |
-
1983
- 1983-07-26 GB GB08320087A patent/GB2126406B/en not_active Expired
- 1983-08-04 JP JP58143606A patent/JPS5952436A/en active Pending
- 1983-08-05 DE DE19833328368 patent/DE3328368A1/en not_active Withdrawn
- 1983-08-05 SE SE8304295A patent/SE8304295L/en not_active Application Discontinuation
- 1983-08-08 CA CA000434130A patent/CA1200609A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE8304295L (en) | 1984-02-10 |
| SE8304295D0 (en) | 1983-08-05 |
| CA1200609A (en) | 1986-02-11 |
| JPS5952436A (en) | 1984-03-27 |
| DE3328368A1 (en) | 1984-02-09 |
| GB8320087D0 (en) | 1983-08-24 |
| GB2126406A (en) | 1984-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |