JPH02138966U - - Google Patents

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Publication number
JPH02138966U
JPH02138966U JP4760589U JP4760589U JPH02138966U JP H02138966 U JPH02138966 U JP H02138966U JP 4760589 U JP4760589 U JP 4760589U JP 4760589 U JP4760589 U JP 4760589U JP H02138966 U JPH02138966 U JP H02138966U
Authority
JP
Japan
Prior art keywords
comparator
video signal
circuit
processing device
illuminance
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
JP4760589U
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 JP4760589U priority Critical patent/JPH02138966U/ja
Publication of JPH02138966U publication Critical patent/JPH02138966U/ja
Pending legal-status Critical Current

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Description

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

第１図はこの考案の一実施例を示す構成図、第
２図〜第４図はその説明のための図、第５図は従
来例の説明のための図である。 １……撮像素子、２……ＡＧＣアンプ、３……
プロセス回路、４，７……レベル検出器、６……
アイリス、１１，２１……挿入回路、１２……エ
ンコーダ、１３……クランプ回路、１４……１ビ
ツトのＡ／Ｄ変換器、１５……タイトル回路、１
６……コントローラ、１７……キーボード、１８
，１９……操作キー、２０……ＶＴＲ、２２……
ＶＴＲ制御回路、２４……電子ビユーフアインダ
。 FIG. 1 is a block diagram showing one embodiment of this invention, FIGS. 2 to 4 are diagrams for explaining the same, and FIG. 5 is a diagram for explaining a conventional example. 1...Image sensor, 2...AGC amplifier, 3...
Process circuit, 4, 7... Level detector, 6...
Iris, 11, 21... Insertion circuit, 12... Encoder, 13... Clamp circuit, 14... 1-bit A/D converter, 15... Title circuit, 1
6...Controller, 17...Keyboard, 18
, 19...operation key, 20...VTR, 22...
VTR control circuit, 24...electronic viewfinder.

Claims (1)

【実用新案登録請求の範囲】 ビデオカメラからの映像信号がコンパレータに
供給され、このコンパレータより文字タイトルデ
ータが出力されるようにした映像信号処理装置に
おいて、 上記コンパレータの前段にクランプ回路が設け
られ、 上記クランプ回路は照度検出回路からの検出信
号によつて制御されて照度に応じてクランプレベ
ルが変えられることを特徴とする映像信号処理装
置。[Claims for Utility Model Registration] In a video signal processing device in which a video signal from a video camera is supplied to a comparator and character title data is output from the comparator, a clamp circuit is provided before the comparator, A video signal processing device characterized in that the clamp circuit is controlled by a detection signal from an illuminance detection circuit so that a clamp level can be changed according to illuminance.
JP4760589U 1989-04-21 1989-04-21 Pending JPH02138966U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4760589U JPH02138966U (en) 1989-04-21 1989-04-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4760589U JPH02138966U (en) 1989-04-21 1989-04-21

Publications (1)

Publication Number Publication Date
JPH02138966U true JPH02138966U (en) 1990-11-20

Family

ID=31563680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4760589U Pending JPH02138966U (en) 1989-04-21 1989-04-21

Country Status (1)

Country Link
JP (1) JPH02138966U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234469A (en) * 1985-08-07 1987-02-14 Hitachi Ltd Displaying system in electronic view finder of video camera
JPS62120172A (en) * 1985-11-20 1987-06-01 Matsushita Electric Ind Co Ltd Character signal mixing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234469A (en) * 1985-08-07 1987-02-14 Hitachi Ltd Displaying system in electronic view finder of video camera
JPS62120172A (en) * 1985-11-20 1987-06-01 Matsushita Electric Ind Co Ltd Character signal mixing device

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