JPS6248298B2 - - Google Patents
Info
- Publication number
- JPS6248298B2 JPS6248298B2 JP13624382A JP13624382A JPS6248298B2 JP S6248298 B2 JPS6248298 B2 JP S6248298B2 JP 13624382 A JP13624382 A JP 13624382A JP 13624382 A JP13624382 A JP 13624382A JP S6248298 B2 JPS6248298 B2 JP S6248298B2
- Authority
- JP
- Japan
- Prior art keywords
- focus
- signal
- output
- circuit
- servo
- 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
- G11B7/08—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)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13624382A JPS5928254A (ja) | 1982-08-06 | 1982-08-06 | フオ−カスサ−ボ装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13624382A JPS5928254A (ja) | 1982-08-06 | 1982-08-06 | フオ−カスサ−ボ装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5928254A JPS5928254A (ja) | 1984-02-14 |
| JPS6248298B2 true JPS6248298B2 (enrdf_load_stackoverflow) | 1987-10-13 |
Family
ID=15170627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13624382A Granted JPS5928254A (ja) | 1982-08-06 | 1982-08-06 | フオ−カスサ−ボ装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5928254A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63113939A (ja) * | 1986-10-31 | 1988-05-18 | Pioneer Electronic Corp | アドレス探索方法 |
-
1982
- 1982-08-06 JP JP13624382A patent/JPS5928254A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5928254A (ja) | 1984-02-14 |