JPS63177807U - - Google Patents

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Publication number
JPS63177807U
JPS63177807U JP6782387U JP6782387U JPS63177807U JP S63177807 U JPS63177807 U JP S63177807U JP 6782387 U JP6782387 U JP 6782387U JP 6782387 U JP6782387 U JP 6782387U JP S63177807 U JPS63177807 U JP S63177807U
Authority
JP
Japan
Prior art keywords
white balance
circuit
manual
control signal
gain control
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.)
Granted
Application number
JP6782387U
Other languages
Japanese (ja)
Other versions
JPH0544808Y2 (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 JP1987067823U priority Critical patent/JPH0544808Y2/ja
Publication of JPS63177807U publication Critical patent/JPS63177807U/ja
Application granted granted Critical
Publication of JPH0544808Y2 publication Critical patent/JPH0544808Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Landscapes

  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Closed-Circuit Television Systems (AREA)

Description

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

第１図は、この考案によるＴＶ内視鏡用ホワイ
トバランス装置の一実施例のブロツク図、第２図
はＴＶ内視鏡を示す全体構成図、及び第３図は、
従来のＴＶ内視鏡用ホワイトバランス装置のブロ
ツク図である。 １１……固体撮像素子、１２……増幅器、１３
……色信号分離回路、１４……カラーエンコーダ
、１５……Ｒ信号制御信号発生回路、１６……Ｂ
信号制御信号発生、１７……利得制御信号発生回
路、２１，２２……比較回路、２３……記憶回路
、２４……切換回路。 FIG. 1 is a block diagram of an embodiment of the white balance device for a TV endoscope according to this invention, FIG. 2 is an overall configuration diagram showing the TV endoscope, and FIG.
1 is a block diagram of a conventional white balance device for a TV endoscope. 11...Solid-state image sensor, 12...Amplifier, 13
...Color signal separation circuit, 14...Color encoder, 15...R signal control signal generation circuit, 16...B
Signal control signal generation, 17...Gain control signal generation circuit, 21, 22...Comparison circuit, 23...Storage circuit, 24...Switching circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 固体撮像素子からのフイールド順次信号をビデ
オプロセス回路を介してカラー画像化するように
したＴＶ内視鏡にて白色被写体を撮像して得た出
力信号によつて赤色映像信号と青色成分映像信号
の伝送系の各々の利得を制御してカラーバランス
を補正するホワイトバランス装置において、赤色
成分と青色成分の各映像信号の比率を検出し、そ
の比率に応じて第１の利得制御信号を出力する比
較回路と、この比較回路の出力を記憶する記憶回
路と、マニアルに設定できる第２の利得制御信号
を出力するマニアル利得制御信号発生回路と、上
記第１及び第２の利得制御信号を択一的に切換で
きる切換回路とで構成し、マニアルなホワイトバ
ランス調整の解除時に直ちにマニアルへの切換前
のホワイトバランス状態に復帰できるようにした
ことを特徴とするＴＶ内視鏡用ホワイトバランス
装置。 A red video signal and a blue component video signal are generated by an output signal obtained by imaging a white object with a TV endoscope that converts field sequential signals from a solid-state image sensor into a color image via a video processing circuit. In a white balance device that corrects color balance by controlling each gain in the transmission system, the ratio of each video signal of the red component and the blue component is detected, and a first gain control signal is output according to the ratio. a storage circuit that stores the output of the comparison circuit; a manual gain control signal generation circuit that outputs a second gain control signal that can be manually set; A white balance device for a TV endoscope, comprising a switching circuit that can switch to a white balance, and is capable of immediately returning to the white balance state before switching to manual when manual white balance adjustment is canceled.
JP1987067823U 1987-05-08 1987-05-08 Expired - Lifetime JPH0544808Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987067823U JPH0544808Y2 (en) 1987-05-08 1987-05-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987067823U JPH0544808Y2 (en) 1987-05-08 1987-05-08

Publications (2)

Publication Number Publication Date
JPS63177807U true JPS63177807U (en) 1988-11-17
JPH0544808Y2 JPH0544808Y2 (en) 1993-11-15

Family

ID=30907075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987067823U Expired - Lifetime JPH0544808Y2 (en) 1987-05-08 1987-05-08

Country Status (1)

Country Link
JP (1) JPH0544808Y2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115136A (en) * 1977-03-18 1978-10-07 Hitachi Denshi Ltd White-balance switch driving circuit for color television camera
JPS61179129A (en) * 1984-09-14 1986-08-11 オリンパス光学工業株式会社 Automatic condition setting apparatus for endoscope using solid image pick-up element
JPS628782U (en) * 1985-06-28 1987-01-20
JPS6229390A (en) * 1985-07-31 1987-02-07 Toshiba Corp White balance setting circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116346A (en) * 1981-01-10 1982-07-20 Canon Inc Photoconductive material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115136A (en) * 1977-03-18 1978-10-07 Hitachi Denshi Ltd White-balance switch driving circuit for color television camera
JPS61179129A (en) * 1984-09-14 1986-08-11 オリンパス光学工業株式会社 Automatic condition setting apparatus for endoscope using solid image pick-up element
JPS628782U (en) * 1985-06-28 1987-01-20
JPS6229390A (en) * 1985-07-31 1987-02-07 Toshiba Corp White balance setting circuit

Also Published As

Publication number Publication date
JPH0544808Y2 (en) 1993-11-15

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