JPH0445916B2 - - Google Patents
Info
- Publication number
- JPH0445916B2 JPH0445916B2 JP8745283A JP8745283A JPH0445916B2 JP H0445916 B2 JPH0445916 B2 JP H0445916B2 JP 8745283 A JP8745283 A JP 8745283A JP 8745283 A JP8745283 A JP 8745283A JP H0445916 B2 JPH0445916 B2 JP H0445916B2
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- phase
- signal
- input
- equation
- 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
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
- Moving Of The Head To Find And Align With The Track (AREA)
- Optical Recording Or Reproduction (AREA)
- Control Of Position Or Direction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8745283A JPS59215079A (ja) | 1983-05-20 | 1983-05-20 | 位置決め装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8745283A JPS59215079A (ja) | 1983-05-20 | 1983-05-20 | 位置決め装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59215079A JPS59215079A (ja) | 1984-12-04 |
| JPH0445916B2 true JPH0445916B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-07-28 |
Family
ID=13915244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8745283A Granted JPS59215079A (ja) | 1983-05-20 | 1983-05-20 | 位置決め装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59215079A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864552A (en) * | 1986-08-29 | 1989-09-05 | Laser Magnetic Storage International Company | Driving signal for coarse servo employing sampled offset signal |
-
1983
- 1983-05-20 JP JP8745283A patent/JPS59215079A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59215079A (ja) | 1984-12-04 |