JPS5956883U - Switching control signal generation circuit for input signal switching circuit in chroma circuit - Google Patents
Switching control signal generation circuit for input signal switching circuit in chroma circuitInfo
- Publication number
- JPS5956883U JPS5956883U JP15076582U JP15076582U JPS5956883U JP S5956883 U JPS5956883 U JP S5956883U JP 15076582 U JP15076582 U JP 15076582U JP 15076582 U JP15076582 U JP 15076582U JP S5956883 U JPS5956883 U JP S5956883U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- color
- switching
- input
- 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
(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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案回路とクロマ回路とのブロック図、第２
図は動作説明用波形図である。Figure 1 is a block diagram of the circuit of the present invention and the chroma circuit;
The figure is a waveform diagram for explaining the operation.
Claims (1)
の搬送色信号の信号処理回路と、色副搬送波の周波数が
４ 、４３ＭＨｚであるような第２の搬送色信号の信号
処理回路と、入力信号が前記第１の搬送色信号のときに
は、それが前記第１の搬送色信号の信号処理回路に与え
られるように、また、入力信号が前記第２の搬送色信号
のときには、それが前記第２の搬送信号の信号処理回路
に与えられるように、入力信号の切換＆を行なう入力信
号切換回路と、前記した第１、第２の搬送色信号の信号
処理回路からの出力信号に基づいてカラーキラー信号を
発生するカラ−９キラー回路と、前記した第１、第２．
の搬送色信号め信号処理回路の出力信号より色信号を作
り出す色信号処理回路などを備えて構成されているクロ
マ回路における前記した入力信号切換回路の切換制御信
号発生回路であって、カラーキラー信号が一方入力とし
て与えられるとともに、垂直同期の信号が他方入力とし
て与えられるようになされたナンド回路と、前記のナン
ド回路の出力信号がトリガ端子に与えられるようになさ
れたフリップフロップ回路とからなり、前記のフリップ
フロップ回路のＱ、 Ｑ出力が入力信号切換回路の切換
制御信号として用いられるようにしてなるクロマ回路に
おける入力信号切換回路の切換制御信号発生回路。The first one such that the color subcarrier frequency is 3.58 MHz.
a signal processing circuit for a second carrier color signal whose color subcarrier has a frequency of 4.43 MHz, and when the input signal is the first carrier color signal, such that it is applied to the signal processing circuit for the first carrier color signal, and when the input signal is the second carrier color signal, it is applied to the signal processing circuit for the second carrier signal, an input signal switching circuit for switching input signals; a color-9 killer circuit for generating color killer signals based on the output signals from the signal processing circuits for the first and second carrier color signals; 1st, 2nd.
A switching control signal generation circuit for the above-mentioned input signal switching circuit in a chroma circuit configured to include a color signal processing circuit that generates a color signal from an output signal of a carrier color signal signal processing circuit, which outputs a color killer signal. consisting of a NAND circuit to which is given as one input and a vertical synchronization signal as the other input, and a flip-flop circuit to which the output signal of the NAND circuit is given to a trigger terminal, A switching control signal generation circuit for an input signal switching circuit in a chroma circuit, wherein Q and Q outputs of the flip-flop circuit are used as switching control signals for the input signal switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15076582U JPS5956883U (en) | 1982-10-04 | 1982-10-04 | Switching control signal generation circuit for input signal switching circuit in chroma circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15076582U JPS5956883U (en) | 1982-10-04 | 1982-10-04 | Switching control signal generation circuit for input signal switching circuit in chroma circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5956883U true JPS5956883U (en) | 1984-04-13 |
Family
ID=30334295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15076582U Pending JPS5956883U (en) | 1982-10-04 | 1982-10-04 | Switching control signal generation circuit for input signal switching circuit in chroma circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956883U (en) |
-
1982
- 1982-10-04 JP JP15076582U patent/JPS5956883U/en active Pending
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