JPS58116370U - Video signal AGC circuit - Google Patents

Video signal AGC circuit

Info

Publication number
JPS58116370U
JPS58116370U JP1296882U JP1296882U JPS58116370U JP S58116370 U JPS58116370 U JP S58116370U JP 1296882 U JP1296882 U JP 1296882U JP 1296882 U JP1296882 U JP 1296882U JP S58116370 U JPS58116370 U JP S58116370U
Authority
JP
Japan
Prior art keywords
agc
circuit
video signal
synchronization signal
agc circuit
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
Application number
JP1296882U
Other languages
Japanese (ja)
Inventor
西谷　清
Original Assignee
ソニー株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ソニー株式会社 filed Critical ソニー株式会社
Priority to JP1296882U priority Critical patent/JPS58116370U/en
Publication of JPS58116370U publication Critical patent/JPS58116370U/en
Pending legal-status Critical Current

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  • Television Receiver Circuits (AREA)
  • Television Signal Processing For Recording (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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は同期信号とビデオ信号のピーク値で　　。 ＡＧＣをかけるＡＧＣ回路のブロック図、第２図ａ〜ｄ
は入力ビデオ信号波形に対するＡＧＣ出力波形図、第３
図はこの考案のＡＧＣ回路のブロック図、第４図は第３
図の具体的な回路図である。 図中、１１はＡＧＣアンプ、１２は同期信号レベル検出
器、１３はピークレベル検出器、１４は切換回路、１５
は同期信号分離回路、１６はスざ、ツチ回路である。Figure 1 shows the peak values of the synchronization signal and video signal. Block diagram of the AGC circuit that applies AGC, Figure 2 a-d
is the AGC output waveform diagram for the input video signal waveform, the third
The figure is a block diagram of the AGC circuit of this invention, and Figure 4 is the block diagram of the AGC circuit of this invention.
It is a specific circuit diagram of the figure. In the figure, 11 is an AGC amplifier, 12 is a synchronizing signal level detector, 13 is a peak level detector, 14 is a switching circuit, and 15
1 is a synchronizing signal separation circuit, and 16 is a Suza, Tsuchi circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 同期信号によるＡＧＣと、ピークレベルによるＡＧＣを
併用したＡＧＣ回路において、同期信号分離回路と、ぎ
−フレベル検出器の出力を禁止するスイッチ回路を設け
、前記同期信号分離回路に信号がある亡き、前記スイッ
チ回路を駆動し、同期信号期間には前記ピークレベルに
よるＡＧＣを不作動とすることを特徴とするビデオ信号
のＡＧＣ回路。In an AGC circuit that uses both synchronization signal-based AGC and peak level-based AGC, a synchronization signal separation circuit and a switch circuit for inhibiting the output of the gif level detector are provided, and when the signal is present in the synchronization signal separation circuit, the An AGC circuit for a video signal, characterized in that it drives a switch circuit and disables AGC based on the peak level during a synchronization signal period.
JP1296882U 1982-02-03 1982-02-03 Video signal AGC circuit Pending JPS58116370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1296882U JPS58116370U (en) 1982-02-03 1982-02-03 Video signal AGC circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1296882U JPS58116370U (en) 1982-02-03 1982-02-03 Video signal AGC circuit

Publications (1)

Publication Number Publication Date
JPS58116370U true JPS58116370U (en) 1983-08-09

Family

ID=30025506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1296882U Pending JPS58116370U (en) 1982-02-03 1982-02-03 Video signal AGC circuit

Country Status (1)

Country Link
JP (1) JPS58116370U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622783A (en) * 1985-06-28 1987-01-08 Toshiba Corp Agc wave detecting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622783A (en) * 1985-06-28 1987-01-08 Toshiba Corp Agc wave detecting circuit

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