JPS5517808A - Disk reproducing unit - Google Patents

Disk reproducing unit

Info

Publication number
JPS5517808A
JPS5517808A JP8865878A JP8865878A JPS5517808A JP S5517808 A JPS5517808 A JP S5517808A JP 8865878 A JP8865878 A JP 8865878A JP 8865878 A JP8865878 A JP 8865878A JP S5517808 A JPS5517808 A JP S5517808A
Authority
JP
Japan
Prior art keywords
feed
rotation
quick
case
feed motor
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
JP8865878A
Other languages
Japanese (ja)
Other versions
JPS615222B2 (en
Inventor
Yuji Miki
Kazuo Mimasu
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 JP8865878A priority Critical patent/JPS5517808A/en
Publication of JPS5517808A publication Critical patent/JPS5517808A/en
Publication of JPS615222B2 publication Critical patent/JPS615222B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To drive a feed motor intermittently in case of regenerative feed and drive it continuously at a constant speed in case of quick-feed or quick-return by using rotary pulses corresponding to the rotation of a turntable and pulses corresponding to the rotation of the feed motor to drive it.
CONSTITUTION: The pick-up is moved against the disk correspondingly to the rotation of feed motor in case of regenerative feed, quick-feed or quick-return. Rotary pulses SB are generated by turntable rotation checker 56 in responce to the rotation of turntable and moreover pulse signals SA are generated in responce to the rotation of feed motor 3 in every rotation angle. In case of the regenerative feed, intermittent drive signals are generated for driving the feed motor intermittently in response to rotary pulses SB and pulses SA. In case of the quick-feed and quick- return, constant drive signals are generated from the feed motor control signal circuit in responce to pulse signals SA.
COPYRIGHT: (C)1980,JPO&Japio
JP8865878A 1978-07-19 1978-07-19 Disk reproducing unit Granted JPS5517808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8865878A JPS5517808A (en) 1978-07-19 1978-07-19 Disk reproducing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8865878A JPS5517808A (en) 1978-07-19 1978-07-19 Disk reproducing unit

Publications (2)

Publication Number Publication Date
JPS5517808A true JPS5517808A (en) 1980-02-07
JPS615222B2 JPS615222B2 (en) 1986-02-17

Family

ID=13948912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8865878A Granted JPS5517808A (en) 1978-07-19 1978-07-19 Disk reproducing unit

Country Status (1)

Country Link
JP (1) JPS5517808A (en)

Also Published As

Publication number Publication date
JPS615222B2 (en) 1986-02-17

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