JPH0439815U - - Google Patents
Info
- Publication number
- JPH0439815U JPH0439815U JP7933290U JP7933290U JPH0439815U JP H0439815 U JPH0439815 U JP H0439815U JP 7933290 U JP7933290 U JP 7933290U JP 7933290 U JP7933290 U JP 7933290U JP H0439815 U JPH0439815 U JP H0439815U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- error signal
- focus
- focus error
- focus servo
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection 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 |
|---|---|---|---|
| JP7933290U JP2523866Y2 (ja) | 1990-07-27 | 1990-07-27 | フォーカスサーボ引込装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7933290U JP2523866Y2 (ja) | 1990-07-27 | 1990-07-27 | フォーカスサーボ引込装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439815U true JPH0439815U (cs) | 1992-04-03 |
| JP2523866Y2 JP2523866Y2 (ja) | 1997-01-29 |
Family
ID=31623396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7933290U Expired - Lifetime JP2523866Y2 (ja) | 1990-07-27 | 1990-07-27 | フォーカスサーボ引込装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523866Y2 (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04162218A (ja) * | 1990-10-26 | 1992-06-05 | Nec Corp | 光ディスク装置のフォーカスサーチ方式及び光ディスク装置 |
-
1990
- 1990-07-27 JP JP7933290U patent/JP2523866Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04162218A (ja) * | 1990-10-26 | 1992-06-05 | Nec Corp | 光ディスク装置のフォーカスサーチ方式及び光ディスク装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2523866Y2 (ja) | 1997-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |