JPS5582582A - Recording and reproducing unit for color television signal - Google Patents
Recording and reproducing unit for color television signalInfo
- Publication number
- JPS5582582A JPS5582582A JP15734278A JP15734278A JPS5582582A JP S5582582 A JPS5582582 A JP S5582582A JP 15734278 A JP15734278 A JP 15734278A JP 15734278 A JP15734278 A JP 15734278A JP S5582582 A JPS5582582 A JP S5582582A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- given
- color burst
- color
- 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
Abstract
PURPOSE: To prevent the deterioration of vertical resolution by identifying whether the carrier chrominance signal is passed through the comb type filter or not and selecting whether it passes through the filter or not from the result.
CONSTITUTION: The color TV signal of the input terminal 1 is fed to LPF 2 and BPF 8, only luminance signal is picked up at LPF2 and it is given to the FM modulator 3 and the synchronizing signal separation circuit 6. The signal of the modulator 3 is in FM modulation, and it is given to the adder 5 through obtaining only high band component at HPF4. On the other hand, at BPF8, carrier chrominance signal only is obtained and the color burst signal is controlled at the variable gain circuit 9 and it is given to the comb type filter 21 having 1H delay circuit, selector switch 22 and color burst signal separation circuit 10. The circuit 10 picks up the color burst signal with the signal of the circuit 6 and it is given to the ampli tude detection circuit 11 and this signal is given to the time constant circuit 12 and voltage comparison circuits 16, 17. The circuit 12 outputs the average signal of detection signal, which is given to the voltage comparison circuit 13, the signal in response to the voltage difference with the reference voltage source 14 is outputted to control the circuit 9 and to keep constant the color burst signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15734278A JPS5582582A (en) | 1978-12-19 | 1978-12-19 | Recording and reproducing unit for color television signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15734278A JPS5582582A (en) | 1978-12-19 | 1978-12-19 | Recording and reproducing unit for color television signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5582582A true JPS5582582A (en) | 1980-06-21 |
Family
ID=15647581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15734278A Pending JPS5582582A (en) | 1978-12-19 | 1978-12-19 | Recording and reproducing unit for color television signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582582A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6449395A (en) * | 1987-08-19 | 1989-02-23 | Victor Company Of Japan | Magnetic recording device and device for reproducing magnetic record |
-
1978
- 1978-12-19 JP JP15734278A patent/JPS5582582A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6449395A (en) * | 1987-08-19 | 1989-02-23 | Victor Company Of Japan | Magnetic recording device and device for reproducing magnetic record |
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