JPS5911542A - 光学記録再生装置 - Google Patents
光学記録再生装置Info
- Publication number
- JPS5911542A JPS5911542A JP12189682A JP12189682A JPS5911542A JP S5911542 A JPS5911542 A JP S5911542A JP 12189682 A JP12189682 A JP 12189682A JP 12189682 A JP12189682 A JP 12189682A JP S5911542 A JPS5911542 A JP S5911542A
- Authority
- JP
- Japan
- Prior art keywords
- output
- envelope
- circuit
- voltage
- focus
- 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
- G11B7/0908—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 focusing only
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12189682A JPS5911542A (ja) | 1982-07-12 | 1982-07-12 | 光学記録再生装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12189682A JPS5911542A (ja) | 1982-07-12 | 1982-07-12 | 光学記録再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5911542A true JPS5911542A (ja) | 1984-01-21 |
| JPH0370860B2 JPH0370860B2 (enrdf_load_stackoverflow) | 1991-11-11 |
Family
ID=14822584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12189682A Granted JPS5911542A (ja) | 1982-07-12 | 1982-07-12 | 光学記録再生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5911542A (enrdf_load_stackoverflow) |
-
1982
- 1982-07-12 JP JP12189682A patent/JPS5911542A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0370860B2 (enrdf_load_stackoverflow) | 1991-11-11 |
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