JPS6160570U - - Google Patents

Info

Publication number
JPS6160570U
JPS6160570U JP14621384U JP14621384U JPS6160570U JP S6160570 U JPS6160570 U JP S6160570U JP 14621384 U JP14621384 U JP 14621384U JP 14621384 U JP14621384 U JP 14621384U JP S6160570 U JPS6160570 U JP S6160570U
Authority
JP
Japan
Prior art keywords
level
gamma correction
pedestal control
detecting
video 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.)
Granted
Application number
JP14621384U
Other languages
Japanese (ja)
Other versions
JPH0424692Y2 (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 JP1984146213U priority Critical patent/JPH0424692Y2/ja
Priority to DE19853530254 priority patent/DE3530254A1/en
Priority to GB08521587A priority patent/GB2165416B/en
Publication of JPS6160570U publication Critical patent/JPS6160570U/ja
Application granted granted Critical
Publication of JPH0424692Y2 publication Critical patent/JPH0424692Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction

Description

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

第１図はこの考案に係るカラーテレビジヨンカ
メラ装置の一実施例を示すブロツク回路図、第２
図は同実施例の動作を説明するための出力波形図
、第３図及び第４図はそれぞれ従来のカラーテレ
ビジヨンカメラ装置の構成及び動作を説明するた
めのブロツク回路図及び波形図である。 １１ａ〜１１ｃ…撮像管、１３ａ〜１３…加算
器、１４ａ〜１４ｃ，２２ａ〜２２ｃ…ペデスタ
ルコントロール回路、１５ａ〜１５ｃ…可変ガン
マ補正回路、１６ａ〜１６ｃ…ブランキング混合
回路、１７ａ〜１７ｃ…リニアクリツパ回路、２
０ａ〜２０ｃ…バツフア増幅器、２１ａ〜２１ｃ
…サンプルホールド回路。 FIG. 1 is a block circuit diagram showing an embodiment of a color television camera device according to this invention, and FIG.
The figure is an output waveform diagram for explaining the operation of the same embodiment, and FIGS. 3 and 4 are a block circuit diagram and a waveform diagram, respectively, for explaining the configuration and operation of a conventional color television camera device. 11a-11c...Image tube, 13a-13...Adder, 14a-14c, 22a-22c...Pedestal control circuit, 15a-15c...Variable gamma correction circuit, 16a-16c...Blanking mixing circuit, 17a-17c...Linear clipper circuit ,2
0a to 20c...Buffer amplifier, 21a to 21c
...Sample and hold circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の映像信号をそれぞれペデスタル制御を行
なつた後にガンマ補正するカラーテレビジヨンカ
メラ装置において、前記ガンマ補正後の各映像信
号の帰線期間のレベルをそれぞれ検出する検出手
段と、この検出手段で得られるレベルに基づいて
前記ペデスタル制御のレベルを調整する調整手段
とを具備したことを特徴とするカラーテレビジヨ
ンカメラ装置。 A color television camera device that performs gamma correction after performing pedestal control on each of a plurality of video signals includes a detection means for detecting the blanking period level of each video signal after the gamma correction, and a detection means for detecting the level of the retrace period of each video signal after the gamma correction, and a and adjusting means for adjusting the level of the pedestal control based on the level of the pedestal control.
JP1984146213U 1984-09-27 1984-09-27 Expired JPH0424692Y2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1984146213U JPH0424692Y2 (en) 1984-09-27 1984-09-27
DE19853530254 DE3530254A1 (en) 1984-09-27 1985-08-23 COLOR TELEVISION CAMERA ARRANGEMENT
GB08521587A GB2165416B (en) 1984-09-27 1985-08-30 Color television camera apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984146213U JPH0424692Y2 (en) 1984-09-27 1984-09-27

Publications (2)

Publication Number Publication Date
JPS6160570U true JPS6160570U (en) 1986-04-23
JPH0424692Y2 JPH0424692Y2 (en) 1992-06-11

Family

ID=15402666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984146213U Expired JPH0424692Y2 (en) 1984-09-27 1984-09-27

Country Status (3)

Country Link
JP (1) JPH0424692Y2 (en)
DE (1) DE3530254A1 (en)
GB (1) GB2165416B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2509346B2 (en) * 1989-10-30 1996-06-19 池上通信機株式会社 Color television image processing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427720A (en) * 1977-08-03 1979-03-02 Nec Corp Process amplifier of color pickup unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283067A (en) * 1964-04-03 1966-11-01 Rca Corp Signal processing apparatus for color systems utilizing separate luminance signal pickup
DE1949024C3 (en) * 1968-11-06 1973-12-06 Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt Color television camera system
US3651248A (en) * 1969-01-11 1972-03-21 Fernseh Gmbh Black level clamping by color signal difference gated to storage during beam blocking
JPS5452418A (en) * 1977-10-04 1979-04-25 Victor Co Of Japan Ltd Stabilization system for black level of color television camera
JPS5883488A (en) * 1981-11-13 1983-05-19 Hitachi Ltd Signal processing circuit for video camera

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427720A (en) * 1977-08-03 1979-03-02 Nec Corp Process amplifier of color pickup unit

Also Published As

Publication number Publication date
GB2165416A (en) 1986-04-09
GB8521587D0 (en) 1985-10-02
JPH0424692Y2 (en) 1992-06-11
DE3530254C2 (en) 1988-04-07
DE3530254A1 (en) 1986-04-10
GB2165416B (en) 1988-03-02

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