JPH01151417U - - Google Patents
Info
- Publication number
- JPH01151417U JPH01151417U JP4631488U JP4631488U JPH01151417U JP H01151417 U JPH01151417 U JP H01151417U JP 4631488 U JP4631488 U JP 4631488U JP 4631488 U JP4631488 U JP 4631488U JP H01151417 U JPH01151417 U JP H01151417U
- Authority
- JP
- Japan
- Prior art keywords
- servo circuit
- movement
- focus
- digital value
- digital
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4631488U JPH01151417U (sl) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4631488U JPH01151417U (sl) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01151417U true JPH01151417U (sl) | 1989-10-19 |
Family
ID=31272584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4631488U Pending JPH01151417U (sl) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151417U (sl) |
-
1988
- 1988-04-06 JP JP4631488U patent/JPH01151417U/ja active Pending