JPS5775087A - Color signal processing circuit - Google Patents
Color signal processing circuitInfo
- Publication number
- JPS5775087A JPS5775087A JP55150987A JP15098780A JPS5775087A JP S5775087 A JPS5775087 A JP S5775087A JP 55150987 A JP55150987 A JP 55150987A JP 15098780 A JP15098780 A JP 15098780A JP S5775087 A JPS5775087 A JP S5775087A
- Authority
- JP
- Japan
- Prior art keywords
- carrier phase
- pulses
- video signal
- switching
- synchronizing
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/793—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To obtain a simple triple system (recordable and reproducible in PAL and SECAM systems and reproducible in the NTSC system), by correcting signals, which are obtained from the first and the second rotary heads, so that intervals of synchronizing pulses become regular and by obtaining carrier phase switching pulses for reproducing in the NTSC system on a basis of a delay video signal. CONSTITUTION:A signal (through video signal) where intervals of synchronizing pulses become irregular at a head switching time is inputted to an input terminal 17, and a delay video signal is inputted to an input terminal 32. The delay video signal is supplied to an equivalent pulse eliminating circuit 34 through a synchronizing separating circuit 33 to extract synchronizing pulses. These pulses are used as carrier phase switching pulses of a carrier phase control circuit 23. At this time, since the switching timing does not coincide for one reproduced output, a head switching pulse is led to the carrier phase control circuit as a carrier phase switching stop signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55150987A JPS5775087A (en) | 1980-10-28 | 1980-10-28 | Color signal processing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55150987A JPS5775087A (en) | 1980-10-28 | 1980-10-28 | Color signal processing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5775087A true JPS5775087A (en) | 1982-05-11 |
JPH026476B2 JPH026476B2 (en) | 1990-02-09 |
Family
ID=15508801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55150987A Granted JPS5775087A (en) | 1980-10-28 | 1980-10-28 | Color signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5775087A (en) |
-
1980
- 1980-10-28 JP JP55150987A patent/JPS5775087A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH026476B2 (en) | 1990-02-09 |
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