JPH0230677U - - Google Patents

Info

Publication number
JPH0230677U
JPH0230677U JP10844088U JP10844088U JPH0230677U JP H0230677 U JPH0230677 U JP H0230677U JP 10844088 U JP10844088 U JP 10844088U JP 10844088 U JP10844088 U JP 10844088U JP H0230677 U JPH0230677 U JP H0230677U
Authority
JP
Japan
Prior art keywords
pedestal level
brightness
video signal
surrounding environment
changes
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
JP10844088U
Other languages
English (en)
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 JP10844088U priority Critical patent/JPH0230677U/ja
Publication of JPH0230677U publication Critical patent/JPH0230677U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)

Description

【図面の簡単な説明】
第1図は本考案のテレビジヨン受像機の主要部
の回路構成図、第2図は動作説明用信号波形図、
第3図はカラーTV画面の観視条件説明用輝度特
性図である。 1……テレビジヨン受像機、2……映像処理回
路、3……映像増幅回路、4……ペデスタルレベ
ルクランプ回路、5……CRT、6……キヤビネ
ツト、7……開口部、Q……NPNトランジス
タ、R……抵抗素子、R……半固定抵抗、R
〜R……固定抵抗。

Claims (1)

    【実用新案登録請求の範囲】
  1. 周囲環境の明るさによつて抵抗値が変化する抵
    抗素子と、該抵抗素子と直列又は並列に抵抗を結
    合し、一定電圧をブリーダ接続することによつて
    、周囲光の照度に応じた電圧値を得る制御回路と
    、該電圧値に応じて映像信号のペデスタルレベル
    を変動するペデスタルレベルクランプ回路とを備
    え、上記周囲環境の明るさに略比例て映像信号出
    力のペデスタルレベルを自動的に変化させるよう
    構成したことを特徴とするテレビジヨン受像機。
JP10844088U 1988-08-18 1988-08-18 Pending JPH0230677U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10844088U JPH0230677U (ja) 1988-08-18 1988-08-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10844088U JPH0230677U (ja) 1988-08-18 1988-08-18

Publications (1)

Publication Number Publication Date
JPH0230677U true JPH0230677U (ja) 1990-02-27

Family

ID=31343770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10844088U Pending JPH0230677U (ja) 1988-08-18 1988-08-18

Country Status (1)

Country Link
JP (1) JPH0230677U (ja)

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