JPH01159481U - - Google Patents

Info

Publication number
JPH01159481U
JPH01159481U JP5423788U JP5423788U JPH01159481U JP H01159481 U JPH01159481 U JP H01159481U JP 5423788 U JP5423788 U JP 5423788U JP 5423788 U JP5423788 U JP 5423788U JP H01159481 U JPH01159481 U JP H01159481U
Authority
JP
Japan
Prior art keywords
control signal
chroma
generating means
gain
level
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
JP5423788U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP5423788U priority Critical patent/JPH01159481U/ja
Publication of JPH01159481U publication Critical patent/JPH01159481U/ja
Pending legal-status Critical Current

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  • Processing Of Color Television Signals (AREA)

Description

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

第1図は本考案を実施したクロマレベル制限回
路を示す回路図である。第2図は従来例の回路図
である。第3図は第1図および第2図の各部分に
おける信号波形図である。 1……バンドパスフイルター、2……第1帯域
増幅器、3……バーストゲート、4……バースト
抜き取りゲートパルス発生回路、5……ACC検
波回路、6……第2帯域増幅器、7……クロマレ
ベル検出回路、8……クロマ抜き取りゲートパル
ス発生回路、9……クロマレベルコントロール電
圧発生回路、10……第3帯域増幅器、11……
カラーキラー回路。
FIG. 1 is a circuit diagram showing a chroma level limiting circuit implementing the present invention. FIG. 2 is a circuit diagram of a conventional example. FIG. 3 is a signal waveform diagram at each portion of FIGS. 1 and 2. 1... Band pass filter, 2... First band amplifier, 3... Burst gate, 4... Burst extraction gate pulse generation circuit, 5... ACC detection circuit, 6... Second band amplifier, 7... Chroma Level detection circuit, 8...Chroma extraction gate pulse generation circuit, 9...Chroma level control voltage generation circuit, 10...Third band amplifier, 11...
color killer circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ACCによるゲイン制御を受けた後のクロマ信
号のレベルが所定値以上になるとコントロール信
号を出力するコントロール信号発生手段と、該コ
ントロール信号発生手段からのコントロール信号
が与えられると入力されたクロマ信号のゲインを
制限するように働く増幅器とを備えることを特徴
とするクロマレベル制限回路。
control signal generating means that outputs a control signal when the level of the chroma signal after being subjected to gain control by the ACC exceeds a predetermined value; and a gain of the input chroma signal when the control signal from the control signal generating means is given. and an amplifier operative to limit the chroma level limiting circuit.
JP5423788U 1988-04-22 1988-04-22 Pending JPH01159481U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5423788U JPH01159481U (en) 1988-04-22 1988-04-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5423788U JPH01159481U (en) 1988-04-22 1988-04-22

Publications (1)

Publication Number Publication Date
JPH01159481U true JPH01159481U (en) 1989-11-06

Family

ID=31280172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5423788U Pending JPH01159481U (en) 1988-04-22 1988-04-22

Country Status (1)

Country Link
JP (1) JPH01159481U (en)

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