JPS6363975B2 - - Google Patents
Info
- Publication number
- JPS6363975B2 JPS6363975B2 JP58042644A JP4264483A JPS6363975B2 JP S6363975 B2 JPS6363975 B2 JP S6363975B2 JP 58042644 A JP58042644 A JP 58042644A JP 4264483 A JP4264483 A JP 4264483A JP S6363975 B2 JPS6363975 B2 JP S6363975B2
- Authority
- JP
- Japan
- Prior art keywords
- tracking control
- objective lens
- tracking
- control signal
- frequency
- 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
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4264483A JPS59167862A (ja) | 1983-03-14 | 1983-03-14 | トラツキング制御装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4264483A JPS59167862A (ja) | 1983-03-14 | 1983-03-14 | トラツキング制御装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59167862A JPS59167862A (ja) | 1984-09-21 |
| JPS6363975B2 true JPS6363975B2 (it) | 1988-12-09 |
Family
ID=12641718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4264483A Granted JPS59167862A (ja) | 1983-03-14 | 1983-03-14 | トラツキング制御装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59167862A (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2569656B2 (ja) * | 1987-12-17 | 1997-01-08 | 三菱電機株式会社 | 光学ディスク装置 |
-
1983
- 1983-03-14 JP JP4264483A patent/JPS59167862A/ja active Granted
Non-Patent Citations (2)
| Title |
|---|
| PROCEEDINGS=1983 * |
| TOPICAL MEETING ON OPTICAL DATA STORAGE=1983 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59167862A (ja) | 1984-09-21 |
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