JPS5494226A - Reproducing unit of pal system color video signal - Google Patents
Reproducing unit of pal system color video signalInfo
- Publication number
- JPS5494226A JPS5494226A JP171078A JP171078A JPS5494226A JP S5494226 A JPS5494226 A JP S5494226A JP 171078 A JP171078 A JP 171078A JP 171078 A JP171078 A JP 171078A JP S5494226 A JPS5494226 A JP S5494226A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reproduced
- carrier chrominance
- phase
- color 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.)
- Granted
Links
Abstract
PURPOSE: To enable to obtain good reproduced carrier chrominance signal, by providing the burst signal phase detection means of reproduced carrier chrominance signal, in the reproduction of PAL system color video signal.
CONSTITUTION: The PAL color video signal is reproduced with the video heads 10a and 10b, and FM luminance signal and the reproduced low band conversion carrier chrominance signal are respectively obtained. After the AM component is rejected from FM luminance signal with the limiter circuit 14, it is reproduced luminance signal with FM demodulasion 15. On the other hand, the reproduced low band conversion carrier chrominance sighal is frequency-converted 19 with the signal from the APC(automatic phase control) circuit 25, and the cross talk component is rejected with the comb type filter 23 and it is the reproduced carrier chrominance signal. The APC circuit 25 picks up the burst signal and after the phase comparison 28 and phase detection 30, it is connected to the phase discontinuity detector of 180 or 90°, and phase change is made.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP171078A JPS5927516B2 (en) | 1978-01-10 | 1978-01-10 | PAL color video signal reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP171078A JPS5927516B2 (en) | 1978-01-10 | 1978-01-10 | PAL color video signal reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5494226A true JPS5494226A (en) | 1979-07-25 |
JPS5927516B2 JPS5927516B2 (en) | 1984-07-06 |
Family
ID=11509099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP171078A Expired JPS5927516B2 (en) | 1978-01-10 | 1978-01-10 | PAL color video signal reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5927516B2 (en) |
-
1978
- 1978-01-10 JP JP171078A patent/JPS5927516B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5927516B2 (en) | 1984-07-06 |
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