JPS55132507A - Video disc player - Google Patents

Video disc player

Info

Publication number
JPS55132507A
JPS55132507A JP4010179A JP4010179A JPS55132507A JP S55132507 A JPS55132507 A JP S55132507A JP 4010179 A JP4010179 A JP 4010179A JP 4010179 A JP4010179 A JP 4010179A JP S55132507 A JPS55132507 A JP S55132507A
Authority
JP
Japan
Prior art keywords
force
pickup
stylus
signal
coil
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
JP4010179A
Other languages
Japanese (ja)
Other versions
JPS6314401B2 (en
Inventor
Kazuo Ito
Yoshiharu Toyoshima
Ichiro Takahara
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP4010179A priority Critical patent/JPS55132507A/en
Publication of JPS55132507A publication Critical patent/JPS55132507A/en
Publication of JPS6314401B2 publication Critical patent/JPS6314401B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

PURPOSE: To prevent the deterioration of reproduced picture quality, by giving the force at first to the detaching direction and next to the pressing direction until the steady state is reached, in returning the pickup of the grooved video disc to the signal groove already scanned.
CONSTITUTION: When the drive current flows to the coil 9 of the pickup 1, the force toward P, Q is given to the magnet 5 and the force F shifts the signal conversion section 4 toward the arrow. This force F is produced every time the second field pulse is detected after the compulsive feed of the pickup is stopped, and the stylus 3 is subjected to the returning force f based on the stress of the elastic substance 6. Accordingly, the stylus 3 is returned to the signal groove immediately before with the synthesized force of the force F, f and stylus pressure W. In this case, the signal from the pickup 1 enters the coil 9 of the pickup via the video processing circuit 10, vertical synchronizing separation circuit 12 and gate circuit 15 to increase the stylus pressure up to the steady state. Thus, the picture quality can be increased.
COPYRIGHT: (C)1980,JPO&Japio
JP4010179A 1979-04-02 1979-04-02 Video disc player Granted JPS55132507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4010179A JPS55132507A (en) 1979-04-02 1979-04-02 Video disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4010179A JPS55132507A (en) 1979-04-02 1979-04-02 Video disc player

Publications (2)

Publication Number Publication Date
JPS55132507A true JPS55132507A (en) 1980-10-15
JPS6314401B2 JPS6314401B2 (en) 1988-03-30

Family

ID=12571466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4010179A Granted JPS55132507A (en) 1979-04-02 1979-04-02 Video disc player

Country Status (1)

Country Link
JP (1) JPS55132507A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02114501U (en) * 1989-03-01 1990-09-13

Also Published As

Publication number Publication date
JPS6314401B2 (en) 1988-03-30

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