JPS55132507A - Video disc player - Google Patents
Video disc playerInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02114501U (en) * | 1989-03-01 | 1990-09-13 |
-
1979
- 1979-04-02 JP JP4010179A patent/JPS55132507A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6314401B2 (en) | 1988-03-30 |
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