JPS6429082A - Color saturation control circuit - Google Patents
Color saturation control circuitInfo
- Publication number
- JPS6429082A JPS6429082A JP18425887A JP18425887A JPS6429082A JP S6429082 A JPS6429082 A JP S6429082A JP 18425887 A JP18425887 A JP 18425887A JP 18425887 A JP18425887 A JP 18425887A JP S6429082 A JPS6429082 A JP S6429082A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- multiplier
- circuit
- amplification
- gain
- 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
Landscapes
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To suppress the flickering of a screen or chrominance noise at the time of the application of a power source or the switching of a channel by enforcing the gain of amplification into a prescribed value when the level of a burst signal is too heigh or the gain of amplification is too small. CONSTITUTION:An output signal from a multiplier 1 is supplied to an AND circuit 2 to take out a burst signal. Thus obtained signal is supplied to a compa rator 10 via an absolute value circuit 3, an averaging circuit 4, an accumulation circuit 5, and a latch circuit, and the signal is compared with a reference level. In accordance with the comparison result, a signal representing the amplification gain of the multiplier 1 is adjusted by an adder 9, from which an output is supplied to the multiplier 1 via a delay element 8. To a comparator 15, a signal representing the amplification gain outputted from the delay element 8 is input ted, and when this signal exceeds a set value, a switch 17 interrupts an output signal from the multiplier 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18425887A JPS6429082A (en) | 1987-07-23 | 1987-07-23 | Color saturation control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18425887A JPS6429082A (en) | 1987-07-23 | 1987-07-23 | Color saturation control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429082A true JPS6429082A (en) | 1989-01-31 |
Family
ID=16150166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18425887A Pending JPS6429082A (en) | 1987-07-23 | 1987-07-23 | Color saturation control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100354627B1 (en) * | 1993-03-17 | 2002-12-26 | 산요 덴키 가부시키가이샤 | Television circuit using color burst signal |
-
1987
- 1987-07-23 JP JP18425887A patent/JPS6429082A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100354627B1 (en) * | 1993-03-17 | 2002-12-26 | 산요 덴키 가부시키가이샤 | Television circuit using color burst signal |
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