JPS5526787A - Video signal regenerator - Google Patents
Video signal regeneratorInfo
- Publication number
- JPS5526787A JPS5526787A JP10039178A JP10039178A JPS5526787A JP S5526787 A JPS5526787 A JP S5526787A JP 10039178 A JP10039178 A JP 10039178A JP 10039178 A JP10039178 A JP 10039178A JP S5526787 A JPS5526787 A JP S5526787A
- Authority
- JP
- Japan
- Prior art keywords
- disc
- circuit
- signal
- radius direction
- video
- 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
Links
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE: To make S/N of a video signal output constant without reference to the regenerative position of a disc by controlling the volume of noises to be erased, by detecting the regenerative position number code of a disc radius direction included in the regenerated video signal of the video disc.
CONSTITUTION: A regenerated signal picked up from video disc 12 is detected by FM detection circuit 19. From the output of circuit 19, number information detection circuit 28 samples a number information code signal which expresses a regenerative position on a disc radius direction included in each fixed period. The sampled signal is led to holding circuit 29, where it is held until update by a code signal in the next vertical period. The output of circuit 29 is converted into a direct-current voltage by D-A converter circuit 30 and the voltage indicates the level equivalent to the regenerative position in the radius direction of disc 12. Depending upon the level of this voltage, the volume of noises to be erased by noise eliminating circuit 26 is controlled, so that S/N of a luminance signal component will be made nearly constant without reference to a shift in regeneration position in the radius direction of disc 12.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10039178A JPS5526787A (en) | 1978-08-17 | 1978-08-17 | Video signal regenerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10039178A JPS5526787A (en) | 1978-08-17 | 1978-08-17 | Video signal regenerator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5526787A true JPS5526787A (en) | 1980-02-26 |
Family
ID=14272687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10039178A Pending JPS5526787A (en) | 1978-08-17 | 1978-08-17 | Video signal regenerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5526787A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03101090U (en) * | 1990-01-31 | 1991-10-22 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5057714A (en) * | 1973-09-21 | 1975-05-20 | ||
JPS50120210A (en) * | 1974-02-15 | 1975-09-20 | ||
JPS5132217A (en) * | 1974-09-13 | 1976-03-18 | Teac Corp | |
JPS5279747A (en) * | 1975-12-26 | 1977-07-05 | Sony Corp | Noise removal circuit |
JPS5338212A (en) * | 1976-08-30 | 1978-04-08 | Rca Corp | Noise attenuator |
-
1978
- 1978-08-17 JP JP10039178A patent/JPS5526787A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5057714A (en) * | 1973-09-21 | 1975-05-20 | ||
JPS50120210A (en) * | 1974-02-15 | 1975-09-20 | ||
JPS5132217A (en) * | 1974-09-13 | 1976-03-18 | Teac Corp | |
JPS5279747A (en) * | 1975-12-26 | 1977-07-05 | Sony Corp | Noise removal circuit |
JPS5338212A (en) * | 1976-08-30 | 1978-04-08 | Rca Corp | Noise attenuator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03101090U (en) * | 1990-01-31 | 1991-10-22 |
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