JPH0268316U - - Google Patents
Info
- Publication number
- JPH0268316U JPH0268316U JP14651088U JP14651088U JPH0268316U JP H0268316 U JPH0268316 U JP H0268316U JP 14651088 U JP14651088 U JP 14651088U JP 14651088 U JP14651088 U JP 14651088U JP H0268316 U JPH0268316 U JP H0268316U
- Authority
- JP
- Japan
- Prior art keywords
- focus
- signal
- error signal
- focus error
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14651088U JPH0268316U (en]) | 1988-11-09 | 1988-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14651088U JPH0268316U (en]) | 1988-11-09 | 1988-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0268316U true JPH0268316U (en]) | 1990-05-23 |
Family
ID=31416068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14651088U Pending JPH0268316U (en]) | 1988-11-09 | 1988-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0268316U (en]) |
-
1988
- 1988-11-09 JP JP14651088U patent/JPH0268316U/ja active Pending