JPS6432472A - Head position controller - Google Patents
Head position controllerInfo
- Publication number
- JPS6432472A JPS6432472A JP18838087A JP18838087A JPS6432472A JP S6432472 A JPS6432472 A JP S6432472A JP 18838087 A JP18838087 A JP 18838087A JP 18838087 A JP18838087 A JP 18838087A JP S6432472 A JPS6432472 A JP S6432472A
- Authority
- JP
- Japan
- Prior art keywords
- head
- signal
- moving speed
- target track
- speed
- 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 Head For Track Selection And Changing (AREA)
Abstract
PURPOSE:To shorten the seek operation time and the settling time, and to stabilize the follow-up control by executing the follow-up control after having decreased suddenly a head moving speed. CONSTITUTION:A head moving speed is controlled by obtaining a head position signal by a head position detecting sensor 6, obtaining a head moving speed signal from the head position signal, comparing a speed profile signal having at least a positive speed and the speed signal in a target track obtained in accordance with a difference of the present track position and the target track position and controlling a head driving motor 5. Also, when it is detected that a head passes through the target track by a head position signal, a brake current corresponding to a moving speed of the head is supplied to the head driving motor 5, and after decelerating enough the moving speed of the head, the head is positioned exactly to the target track by the head position signal. In such a way, the seek operation time and the settling time are shortened, and the follow-up control can be stably executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18838087A JPS6432472A (en) | 1987-07-28 | 1987-07-28 | Head position controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18838087A JPS6432472A (en) | 1987-07-28 | 1987-07-28 | Head position controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432472A true JPS6432472A (en) | 1989-02-02 |
Family
ID=16222609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18838087A Pending JPS6432472A (en) | 1987-07-28 | 1987-07-28 | Head position controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432472A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5301174A (en) * | 1989-07-14 | 1994-04-05 | Sharp Kabushiki Kaisha | Optical disk recording and reproducing apparatus |
-
1987
- 1987-07-28 JP JP18838087A patent/JPS6432472A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5301174A (en) * | 1989-07-14 | 1994-04-05 | Sharp Kabushiki Kaisha | Optical disk recording and reproducing apparatus |
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