JPS6437782A - Method for pulling-in tracking servo of information recording and reproducing device - Google Patents
Method for pulling-in tracking servo of information recording and reproducing deviceInfo
- Publication number
- JPS6437782A JPS6437782A JP19273187A JP19273187A JPS6437782A JP S6437782 A JPS6437782 A JP S6437782A JP 19273187 A JP19273187 A JP 19273187A JP 19273187 A JP19273187 A JP 19273187A JP S6437782 A JPS6437782 A JP S6437782A
- Authority
- JP
- Japan
- Prior art keywords
- pulling
- current
- servo
- center
- actuator
- 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
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
PURPOSE:To position a record reproducing moving part near the center of a moving range even at the time of pulling in a servo by controlling an actuator driving circuit so that a current to flow to an actuator can be a prescribed value and after that, starting the tracking servo pulling-in. CONSTITUTION:The current is flown from a driving circuit 31 to a tracking actuator 16 and this current value is detected by a coil current detector 33. On the other hand, the output voltage of a voltage generator 34 is inputted to the driving circuit 31 and a voltage is generated so that the detected current value of the current detector 33 can be zero. Accordingly, the current is not flown to the tracking actuator 16 and an objective lens is positioned at the center of the moving range in a tracking direction. The servo pulling-in is executed in a condition that the objective lens is positioned near the center of the moving range of the objective lens to an optical head main body. Thus, the record reproducing means moving part can be always positioned near the center of the moving range at the time of pulling in the servo.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192731A JP2536875B2 (en) | 1987-08-03 | 1987-08-03 | Information recording / reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192731A JP2536875B2 (en) | 1987-08-03 | 1987-08-03 | Information recording / reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6437782A true JPS6437782A (en) | 1989-02-08 |
JP2536875B2 JP2536875B2 (en) | 1996-09-25 |
Family
ID=16296128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62192731A Expired - Fee Related JP2536875B2 (en) | 1987-08-03 | 1987-08-03 | Information recording / reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2536875B2 (en) |
-
1987
- 1987-08-03 JP JP62192731A patent/JP2536875B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2536875B2 (en) | 1996-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |