JPS6410452A - Tracking servo control system - Google Patents
Tracking servo control systemInfo
- Publication number
- JPS6410452A JPS6410452A JP62166152A JP16615287A JPS6410452A JP S6410452 A JPS6410452 A JP S6410452A JP 62166152 A JP62166152 A JP 62166152A JP 16615287 A JP16615287 A JP 16615287A JP S6410452 A JPS6410452 A JP S6410452A
- Authority
- JP
- Japan
- Prior art keywords
- prescribed
- servo
- audio data
- synchronizing signal
- error rate
- 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
Abstract
PURPOSE:To reduce the time required for servo recovery by increasing tentatively the servo gain when an error rate of a PCM audio data is a prescribed value or over and a synchronizing signal identification level is a prescribed thereshold value or below. CONSTITUTION:An error detection/correction section 12 calculates an error rate of a PCM audio data read for each track. Moreover, a servo disable state detection section 14 detects whether or not an identification level of a synchronizing signal recorded before and after the PCM audio data is smaller than a prescribed threshold level. In the transfer from the halt state into the play state or when the said error rate is a prescribed value or over in the normal running state and the synchronizing signal identification level is a prescribed threshold value or lower, a gain control circuit 17 increases the gain of a tracking circuit 16 temporarily. As a result, the time requiring for servo recovery is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166152A JPS6410452A (en) | 1987-07-02 | 1987-07-02 | Tracking servo control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166152A JPS6410452A (en) | 1987-07-02 | 1987-07-02 | Tracking servo control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6410452A true JPS6410452A (en) | 1989-01-13 |
Family
ID=15826026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62166152A Pending JPS6410452A (en) | 1987-07-02 | 1987-07-02 | Tracking servo control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6410452A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02189756A (en) * | 1989-01-19 | 1990-07-25 | Mitsubishi Electric Corp | Tracking device |
JPH03137849A (en) * | 1989-10-24 | 1991-06-12 | Matsushita Electric Ind Co Ltd | Magnetic tape reproducing device |
-
1987
- 1987-07-02 JP JP62166152A patent/JPS6410452A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02189756A (en) * | 1989-01-19 | 1990-07-25 | Mitsubishi Electric Corp | Tracking device |
JPH03137849A (en) * | 1989-10-24 | 1991-06-12 | Matsushita Electric Ind Co Ltd | Magnetic tape reproducing device |
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