JPH0466055B2 - - Google Patents
Info
- Publication number
- JPH0466055B2 JPH0466055B2 JP25170383A JP25170383A JPH0466055B2 JP H0466055 B2 JPH0466055 B2 JP H0466055B2 JP 25170383 A JP25170383 A JP 25170383A JP 25170383 A JP25170383 A JP 25170383A JP H0466055 B2 JPH0466055 B2 JP H0466055B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- voltage
- circuit
- photodetector
- main beam
- 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 22
- 238000000034 method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising 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
- G11B7/09—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 To Find And Align With The Track (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25170383A JPS60143444A (ja) | 1983-12-28 | 1983-12-28 | 光学式デイスク・プレ−ヤ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25170383A JPS60143444A (ja) | 1983-12-28 | 1983-12-28 | 光学式デイスク・プレ−ヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60143444A JPS60143444A (ja) | 1985-07-29 |
JPH0466055B2 true JPH0466055B2 (zh) | 1992-10-22 |
Family
ID=17226742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25170383A Granted JPS60143444A (ja) | 1983-12-28 | 1983-12-28 | 光学式デイスク・プレ−ヤ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60143444A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2522145Y2 (ja) * | 1988-02-09 | 1997-01-08 | アルパイン 株式会社 | 光学式ディスクプレーヤ |
-
1983
- 1983-12-28 JP JP25170383A patent/JPS60143444A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60143444A (ja) | 1985-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |