JPS6448254A - Automatic tracking control device for rotating head type magnetic recording and reproducing device - Google Patents

Automatic tracking control device for rotating head type magnetic recording and reproducing device

Info

Publication number
JPS6448254A
JPS6448254A JP62204437A JP20443787A JPS6448254A JP S6448254 A JPS6448254 A JP S6448254A JP 62204437 A JP62204437 A JP 62204437A JP 20443787 A JP20443787 A JP 20443787A JP S6448254 A JPS6448254 A JP S6448254A
Authority
JP
Japan
Prior art keywords
circuit
signal
tracking
rotating head
measuring
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
Application number
JP62204437A
Other languages
Japanese (ja)
Other versions
JPH0574137B2 (en
Inventor
Shuzo Nishida
Koji Hosono
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP62204437A priority Critical patent/JPS6448254A/en
Publication of JPS6448254A publication Critical patent/JPS6448254A/en
Publication of JPH0574137B2 publication Critical patent/JPH0574137B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To eliminate the tracking dislocation of a rotating head even when the pulse intervals of sample holding pulses are not the same, and to execute a correct tracking by switching the gain of a tracking dislocation signal in response to a measuring signal from a measuring circuit, and outputting it to a control circuit. CONSTITUTION:The pulse intervals of second holding pulses p2 applied from a delay circuit 12 are measured, and a pulse interval measuring circuit 16 is provided which outputs the measuring signal indicating a measured value. Further, a gain switching circuit 17 is provided which is set between a second sample holding circuit 8 and a driving circuit 13, switches the gain of the tracking dislocation signal in response to the measuring signal from the pulse interval measuring circuit 16, and outputs the signal to the driving signal 13. Thus, even when the pulse intervals of the sample holding pulses are not the same, the tracking dislocation is eliminated, and the correct tracking can be attained.
JP62204437A 1987-08-17 1987-08-17 Automatic tracking control device for rotating head type magnetic recording and reproducing device Granted JPS6448254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204437A JPS6448254A (en) 1987-08-17 1987-08-17 Automatic tracking control device for rotating head type magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204437A JPS6448254A (en) 1987-08-17 1987-08-17 Automatic tracking control device for rotating head type magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS6448254A true JPS6448254A (en) 1989-02-22
JPH0574137B2 JPH0574137B2 (en) 1993-10-15

Family

ID=16490519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204437A Granted JPS6448254A (en) 1987-08-17 1987-08-17 Automatic tracking control device for rotating head type magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6448254A (en)

Also Published As

Publication number Publication date
JPH0574137B2 (en) 1993-10-15

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