JPS6313263B2 - - Google Patents
Info
- Publication number
- JPS6313263B2 JPS6313263B2 JP6265080A JP6265080A JPS6313263B2 JP S6313263 B2 JPS6313263 B2 JP S6313263B2 JP 6265080 A JP6265080 A JP 6265080A JP 6265080 A JP6265080 A JP 6265080A JP S6313263 B2 JPS6313263 B2 JP S6313263B2
- Authority
- JP
- Japan
- Prior art keywords
- optical head
- track
- optical
- change
- amount
- 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 45
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000005236 sound signal Effects 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
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6265080A JPS56159846A (en) | 1980-05-12 | 1980-05-12 | Optical recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6265080A JPS56159846A (en) | 1980-05-12 | 1980-05-12 | Optical recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56159846A JPS56159846A (en) | 1981-12-09 |
| JPS6313263B2 true JPS6313263B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-03-24 |
Family
ID=13206406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6265080A Granted JPS56159846A (en) | 1980-05-12 | 1980-05-12 | Optical recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56159846A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1980
- 1980-05-12 JP JP6265080A patent/JPS56159846A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56159846A (en) | 1981-12-09 |