JPS5834476U - color killer circuit - Google Patents
color killer circuitInfo
- Publication number
- JPS5834476U JPS5834476U JP12891181U JP12891181U JPS5834476U JP S5834476 U JPS5834476 U JP S5834476U JP 12891181 U JP12891181 U JP 12891181U JP 12891181 U JP12891181 U JP 12891181U JP S5834476 U JPS5834476 U JP S5834476U
- Authority
- JP
- Japan
- Prior art keywords
- color signal
- extracts
- signal
- detection voltage
- filter
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１−図は本考案の一実施例を示す回路図である。
２・・・第１の色信号フィルタ、３・・・第２の色信号
フィルタ、４・・・スイッチ回線、５・・・色信号増幅
回路、６・・・キラー・ＡＣＣ検波回路。FIG. 1 is a circuit diagram showing an embodiment of the present invention. 2... First color signal filter, 3... Second color signal filter, 4... Switch line, 5... Color signal amplification circuit, 6... Killer/ACC detection circuit.
Claims (1)
号フィルタと、 入力される前記搬送色信号を前記所定の帯域より狭い帯
域で取出す第２の色信号フィルタと、 “前記色信号
増幅回路から取出される搬送色信号のバースト信号を検
出して、バースト信号が存在しないときにキラー検波電
圧を取出し、バースト信号が存在するときはバースト信
号のレベルを示すＡＣＣ検波電圧を取出すキラー・ＡＣ
Ｃ検波回路と、前記キラー検波電圧を検出するかまたは
前記ＡＣＣ検波電圧が所定レベル以下であることを検出
したときに応答して前記両色信号フィルタから取出され
る搬送色信号の一方を選択して前記色信号増幅回路に与
えるスイッチ回路とを備えたこと′ を特徴とするカラ
ーキラー回路。[Claims for Utility Model Registration] A first color signal filter that extracts an input carrier color signal in a predetermined band; and a second color signal that extracts the input carrier color signal in a band narrower than the predetermined band. A filter that detects the burst signal of the carrier color signal taken out from the color signal amplification circuit, extracts a killer detection voltage when the burst signal is not present, and indicates the level of the burst signal when the burst signal is present. Killer AC that extracts the ACC detection voltage
C detection circuit and one of the carrier color signals extracted from the dual color signal filter in response to detecting the killer detection voltage or detecting that the ACC detection voltage is below a predetermined level. and a switch circuit that supplies the color signal to the color signal amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12891181U JPS5834476U (en) | 1981-08-31 | 1981-08-31 | color killer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12891181U JPS5834476U (en) | 1981-08-31 | 1981-08-31 | color killer circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5834476U true JPS5834476U (en) | 1983-03-05 |
| JPS6133756Y2 JPS6133756Y2 (en) | 1986-10-02 |
Family
ID=29922590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12891181U Granted JPS5834476U (en) | 1981-08-31 | 1981-08-31 | color killer circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834476U (en) |
-
1981
- 1981-08-31 JP JP12891181U patent/JPS5834476U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6133756Y2 (en) | 1986-10-02 |
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