JPS6331859B2 - - Google Patents
Info
- Publication number
- JPS6331859B2 JPS6331859B2 JP57180248A JP18024882A JPS6331859B2 JP S6331859 B2 JPS6331859 B2 JP S6331859B2 JP 57180248 A JP57180248 A JP 57180248A JP 18024882 A JP18024882 A JP 18024882A JP S6331859 B2 JPS6331859 B2 JP S6331859B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- beam splitter
- light
- tracking
- recording medium
- 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
- 230000003287 optical effect Effects 0.000 claims description 62
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000000926 separation method 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
-
- 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
- G11B7/0901—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 track following only
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18024882A JPS5968833A (ja) | 1982-10-14 | 1982-10-14 | トラツキング位置制御装置 |
| EP83303435A EP0098076A1 (en) | 1982-06-14 | 1983-06-14 | Beam access apparatus for optical disc system |
| US06/765,172 US4615023A (en) | 1982-06-14 | 1985-08-12 | Beam access apparatus for optical disc system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18024882A JPS5968833A (ja) | 1982-10-14 | 1982-10-14 | トラツキング位置制御装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5968833A JPS5968833A (ja) | 1984-04-18 |
| JPS6331859B2 true JPS6331859B2 (nl) | 1988-06-27 |
Family
ID=16079949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18024882A Granted JPS5968833A (ja) | 1982-06-14 | 1982-10-14 | トラツキング位置制御装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5968833A (nl) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6220183A (ja) * | 1985-07-18 | 1987-01-28 | Toshiba Corp | トラツク飛び越し制御回路 |
| JP4740818B2 (ja) * | 2006-10-12 | 2011-08-03 | 東洋ゴム工業株式会社 | 防振ブッシュを備えたリンク部材 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578929A (en) * | 1980-08-29 | 1982-01-18 | Matsushita Electric Ind Co Ltd | Optical pickup device |
-
1982
- 1982-10-14 JP JP18024882A patent/JPS5968833A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578929A (en) * | 1980-08-29 | 1982-01-18 | Matsushita Electric Ind Co Ltd | Optical pickup device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5968833A (ja) | 1984-04-18 |
Similar Documents
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