JPS6333207B2 - - Google Patents
Info
- Publication number
- JPS6333207B2 JPS6333207B2 JP11331578A JP11331578A JPS6333207B2 JP S6333207 B2 JPS6333207 B2 JP S6333207B2 JP 11331578 A JP11331578 A JP 11331578A JP 11331578 A JP11331578 A JP 11331578A JP S6333207 B2 JPS6333207 B2 JP S6333207B2
- Authority
- JP
- Japan
- Prior art keywords
- error signal
- tracking
- signal
- tracking actuator
- light
- 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 9
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
- G11B7/09—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 |
---|---|---|---|
JP11331578A JPS5542304A (en) | 1978-09-14 | 1978-09-14 | Tracking mirror protector of optical information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11331578A JPS5542304A (en) | 1978-09-14 | 1978-09-14 | Tracking mirror protector of optical information reader |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22117786A Division JPS62129945A (ja) | 1986-09-19 | 1986-09-19 | 光学式情報読取装置におけるトラツキングサ−ボ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5542304A JPS5542304A (en) | 1980-03-25 |
JPS6333207B2 true JPS6333207B2 (ko) | 1988-07-04 |
Family
ID=14609105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11331578A Granted JPS5542304A (en) | 1978-09-14 | 1978-09-14 | Tracking mirror protector of optical information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5542304A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH032715U (ko) * | 1989-05-29 | 1991-01-11 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5735810A (en) * | 1980-08-14 | 1982-02-26 | Olympus Optical Co Ltd | Measuring device for moving extent of lens |
FR2497378B1 (fr) * | 1980-12-29 | 1985-06-28 | Thomson Csf | Dispositif compensateur de desequilibre d'un miroir de renvoi appartenant a un systeme optique d'eclairement d'un support d'information |
US4414655A (en) * | 1981-03-31 | 1983-11-08 | Discovision Associates | Scanning beam control system |
EP0095766B1 (en) * | 1982-05-31 | 1986-10-22 | Hitachi, Ltd. | Servo circuit for a signal reproducing apparatus |
JPS5940328A (ja) * | 1982-08-31 | 1984-03-06 | Nec Home Electronics Ltd | 光学ピツクアツプのトラツキング制御回路 |
DE3340712A1 (de) * | 1982-11-11 | 1984-05-17 | Sony Corp., Tokio/Tokyo | Spurhalteschaltung fuer optische wiedergabegeraete |
JPH01116926A (ja) * | 1987-10-29 | 1989-05-09 | Csk Corp | 光メモリカードの書込装置 |
JP2555859B2 (ja) * | 1993-12-10 | 1996-11-20 | 株式会社日立製作所 | 光学的情報処理方法 |
-
1978
- 1978-09-14 JP JP11331578A patent/JPS5542304A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH032715U (ko) * | 1989-05-29 | 1991-01-11 |
Also Published As
Publication number | Publication date |
---|---|
JPS5542304A (en) | 1980-03-25 |
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