JPS643823A - Automatic focus control system for optical disk device - Google Patents
Automatic focus control system for optical disk deviceInfo
- Publication number
- JPS643823A JPS643823A JP15655687A JP15655687A JPS643823A JP S643823 A JPS643823 A JP S643823A JP 15655687 A JP15655687 A JP 15655687A JP 15655687 A JP15655687 A JP 15655687A JP S643823 A JPS643823 A JP S643823A
- Authority
- JP
- Japan
- Prior art keywords
- automatic focus
- focus control
- retried
- control
- control part
- 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
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15655687A JPS643823A (en) | 1987-06-25 | 1987-06-25 | Automatic focus control system for optical disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15655687A JPS643823A (en) | 1987-06-25 | 1987-06-25 | Automatic focus control system for optical disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS643823A true JPS643823A (en) | 1989-01-09 |
Family
ID=15630376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15655687A Pending JPS643823A (en) | 1987-06-25 | 1987-06-25 | Automatic focus control system for optical disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643823A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0312825A (ja) * | 1989-06-09 | 1991-01-21 | Onkyo Corp | 合焦装置および方法 |
JPH04141832A (ja) * | 1990-10-01 | 1992-05-15 | Mitsubishi Electric Corp | 光ディスク装置 |
-
1987
- 1987-06-25 JP JP15655687A patent/JPS643823A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0312825A (ja) * | 1989-06-09 | 1991-01-21 | Onkyo Corp | 合焦装置および方法 |
JPH04141832A (ja) * | 1990-10-01 | 1992-05-15 | Mitsubishi Electric Corp | 光ディスク装置 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1123868C (zh) | 盘的激光纹理化设备 | |
JPS57162137A (en) | Photomagnetic recording and reproducing system | |
JPS5595933A (en) | Automatic focusing device of lens barrel | |
JPS643823A (en) | Automatic focus control system for optical disk device | |
DE3564633D1 (en) | Start-control methods and circuits for optical disc play-back systems | |
JPS55101142A (en) | Focus detection unit of optical reproducing device | |
JPS53132308A (en) | Focus controller of optical reproducer | |
JPS6259371B2 (ja) | ||
JPS55108937A (en) | Optical recording and reproducing device | |
JPS5542368A (en) | Pickup controller | |
JPS547305A (en) | Optical recorder-reproducer | |
JPS5347803A (en) | Automatic focus controller | |
EP0404449A3 (en) | Data-track search apparatus | |
JPS56148745A (en) | Optical recorder and reproducer | |
JPS56114934A (en) | Automatic focus adjusting method | |
JPS6421727A (en) | Pickup transfer device | |
JPS5674837A (en) | Optical disk memory device | |
JPS59127240A (ja) | 情報記録再生装置 | |
JPS6413234A (en) | Optical disk recording and reproducing device | |
JPS6446238A (en) | Optical information recording and reproducing device | |
JPS6047125U (ja) | 光学式記録再生装置 | |
ATE134787T1 (de) | Verarbeitungsgerät für optische karten | |
JPS61193417U (ja) | ||
JPS56138710A (en) | Automatic focus controller | |
JPS6482339A (en) | Optical head in optical disk recording and reproducing device |