JPS54125005A - Optical reading method - Google Patents
Optical reading methodInfo
- Publication number
- JPS54125005A JPS54125005A JP3230678A JP3230678A JPS54125005A JP S54125005 A JPS54125005 A JP S54125005A JP 3230678 A JP3230678 A JP 3230678A JP 3230678 A JP3230678 A JP 3230678A JP S54125005 A JPS54125005 A JP S54125005A
- Authority
- JP
- Japan
- Prior art keywords
- detected
- tracking
- deviated
- tracks
- assumed
- 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.)
- Granted
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
- G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3230678A JPS54125005A (en) | 1978-03-23 | 1978-03-23 | Optical reading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3230678A JPS54125005A (en) | 1978-03-23 | 1978-03-23 | Optical reading method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54125005A true JPS54125005A (en) | 1979-09-28 |
| JPS6120057B2 JPS6120057B2 (enrdf_load_stackoverflow) | 1986-05-20 |
Family
ID=12355256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3230678A Granted JPS54125005A (en) | 1978-03-23 | 1978-03-23 | Optical reading method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54125005A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655806U (enrdf_load_stackoverflow) * | 1979-10-02 | 1981-05-15 | ||
| JPS5661045A (en) * | 1979-10-25 | 1981-05-26 | Olympus Optical Co Ltd | Optical information reader |
| JPH06150354A (ja) * | 1992-11-05 | 1994-05-31 | Sankyo Seiki Mfg Co Ltd | 光ピックアップのビーム角度検出方法 |
-
1978
- 1978-03-23 JP JP3230678A patent/JPS54125005A/ja active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655806U (enrdf_load_stackoverflow) * | 1979-10-02 | 1981-05-15 | ||
| JPS5661045A (en) * | 1979-10-25 | 1981-05-26 | Olympus Optical Co Ltd | Optical information reader |
| JPH06150354A (ja) * | 1992-11-05 | 1994-05-31 | Sankyo Seiki Mfg Co Ltd | 光ピックアップのビーム角度検出方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6120057B2 (enrdf_load_stackoverflow) | 1986-05-20 |
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