JPS5636281A - Picture quality improving unit of color television receiver - Google Patents
Picture quality improving unit of color television receiverInfo
- Publication number
- JPS5636281A JPS5636281A JP11188579A JP11188579A JPS5636281A JP S5636281 A JPS5636281 A JP S5636281A JP 11188579 A JP11188579 A JP 11188579A JP 11188579 A JP11188579 A JP 11188579A JP S5636281 A JPS5636281 A JP S5636281A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color
- level
- television receiver
- picture quality
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To improve the resolution of a picture, by emphasizing high-band components of the luminance signal in the part where the level of the color signal is high and clearness of the picture is lowered. CONSTITUTION:The color signal generated from color signal source 11 is supplied to color level detector 13. Color level detector 13 detects the signal level of the color signal and generates a control signal according to the signal level and supplies the control signal to variable high-band emphasizing circuit 14. The luminance signal is supplied from luminance signal source 12 to variable high-band emphasizing circuit 14 also, and high frequency components of this luminance signal are emphasized and output. The degree of this emphasis is controlled by the control signal from color level detector 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11188579A JPS5636281A (en) | 1979-08-31 | 1979-08-31 | Picture quality improving unit of color television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11188579A JPS5636281A (en) | 1979-08-31 | 1979-08-31 | Picture quality improving unit of color television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5636281A true JPS5636281A (en) | 1981-04-09 |
Family
ID=14572581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11188579A Pending JPS5636281A (en) | 1979-08-31 | 1979-08-31 | Picture quality improving unit of color television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5636281A (en) |
-
1979
- 1979-08-31 JP JP11188579A patent/JPS5636281A/en active Pending
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