JPH0182578U - - Google Patents

Info

Publication number
JPH0182578U
JPH0182578U JP1987177394U JP17739487U JPH0182578U JP H0182578 U JPH0182578 U JP H0182578U JP 1987177394 U JP1987177394 U JP 1987177394U JP 17739487 U JP17739487 U JP 17739487U JP H0182578 U JPH0182578 U JP H0182578U
Authority
JP
Japan
Prior art keywords
circuit
video
control terminal
television receiver
signal
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
JP1987177394U
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 JP1987177394U priority Critical patent/JPH0182578U/ja
Publication of JPH0182578U publication Critical patent/JPH0182578U/ja
Pending legal-status Critical Current

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Landscapes

  • Processing Of Color Television Signals (AREA)

Description

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

第1図は本考案の一実施例を示すブロツク図、
第2図はビデオ信号レベルの特性図である。 1…ビデオ・クロマ回路、2…コントラスト調
整用のボリシム、3…整流用ダイオード、4…イ
ンピーダンス素子としてのトランジスタ。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a characteristic diagram of the video signal level. 1... Video chroma circuit, 2... Volisim for contrast adjustment, 3... Rectifier diode, 4... Transistor as an impedance element.

Claims (1)

【実用新案登録請求の範囲】 (1) ビデオ信号の直流成分のレベルに逆比例し
た電圧をビデオ・クロマ回路のコントラスト制御
端子に印加するようにしたことを特徴とするテレ
ビ受信機。 (2) ビデオ信号を整流する回路と、該整流回路
からの信号によりインピーダンスを制御される素
子とを具備し、該素子をビデオ・クロマ回路のコ
ントラスト制御端子にコントラスト調整用ボリウ
ムと共に接続したことを特徴とするテレビ受信機
[Claims for Utility Model Registration] (1) A television receiver characterized in that a voltage inversely proportional to the level of the DC component of a video signal is applied to a contrast control terminal of a video chroma circuit. (2) It is equipped with a circuit that rectifies the video signal and an element whose impedance is controlled by the signal from the rectifier circuit, and the element is connected to the contrast control terminal of the video chroma circuit together with a contrast adjustment volume. A television receiver with special features.
JP1987177394U 1987-11-20 1987-11-20 Pending JPH0182578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987177394U JPH0182578U (en) 1987-11-20 1987-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987177394U JPH0182578U (en) 1987-11-20 1987-11-20

Publications (1)

Publication Number Publication Date
JPH0182578U true JPH0182578U (en) 1989-06-01

Family

ID=31469058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987177394U Pending JPH0182578U (en) 1987-11-20 1987-11-20

Country Status (1)

Country Link
JP (1) JPH0182578U (en)

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