JPS6410452A - Tracking servo control system - Google Patents

Tracking servo control system

Info

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
Application number
JP62166152A
Other languages
Japanese (ja)
Inventor
Hideaki Kanda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alpine Electronics Inc
Original Assignee
Alpine Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alpine Electronics Inc filed Critical Alpine Electronics Inc
Priority to JP62166152A priority Critical patent/JPS6410452A/en
Publication of JPS6410452A publication Critical patent/JPS6410452A/en
Pending legal-status Critical Current

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.
JP62166152A 1987-07-02 1987-07-02 Tracking servo control system Pending JPS6410452A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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