JPS5558687A - Chroma circuit - Google Patents
Chroma circuitInfo
- Publication number
- JPS5558687A JPS5558687A JP13116478A JP13116478A JPS5558687A JP S5558687 A JPS5558687 A JP S5558687A JP 13116478 A JP13116478 A JP 13116478A JP 13116478 A JP13116478 A JP 13116478A JP S5558687 A JPS5558687 A JP S5558687A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- circuit
- color
- luminance
- modulation
- 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
Landscapes
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To improve color transient response characteristics such as clearness and fineness for color signals.
CONSTITUTION: Composite color TV signals are detected in a 2 and are separated into chrominance signals and luminance signals by filter 3 and trap 6. The former is applied to AM circuit 4 and is modulated by modulation signals from terminal 13. Then, it is subjected to color demodulation 5, and three kinds of color difference signal are subjected to matrix with luminance (Y) signals by output-stage matrix circuit 12, and three kinds of primary signal improved in color transient response characteristics are obtained. Meanwhile, Y signals from circuit 6 are divided into two, and divided one is applied to circuit 12 through picture quality adjustment circuit 11, and the other is applied to a modulation signal generation circuit to obtain modulation signals, which are generated by high-band frequency components of luminance, at output terminal 13. The chrominance signals above are modulated by these obtained signals, thus improving characteristics as the above.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13116478A JPS5558687A (en) | 1978-10-25 | 1978-10-25 | Chroma circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13116478A JPS5558687A (en) | 1978-10-25 | 1978-10-25 | Chroma circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5558687A true JPS5558687A (en) | 1980-05-01 |
JPS627757B2 JPS627757B2 (en) | 1987-02-19 |
Family
ID=15051493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13116478A Granted JPS5558687A (en) | 1978-10-25 | 1978-10-25 | Chroma circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558687A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115334A (en) * | 1974-07-30 | 1976-02-06 | Matsushita Electric Ind Co Ltd | Terebijonjuzoki |
JPS5115693A (en) * | 1974-07-29 | 1976-02-07 | Meiji Seika Co | Sss700a butsushitsuno seizoho |
-
1978
- 1978-10-25 JP JP13116478A patent/JPS5558687A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115693A (en) * | 1974-07-29 | 1976-02-07 | Meiji Seika Co | Sss700a butsushitsuno seizoho |
JPS5115334A (en) * | 1974-07-30 | 1976-02-06 | Matsushita Electric Ind Co Ltd | Terebijonjuzoki |
Also Published As
Publication number | Publication date |
---|---|
JPS627757B2 (en) | 1987-02-19 |
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