JPS62117489A - Color television camera device - Google Patents

Color television camera device

Info

Publication number
JPS62117489A
JPS62117489A JP25658185A JP25658185A JPS62117489A JP S62117489 A JPS62117489 A JP S62117489A JP 25658185 A JP25658185 A JP 25658185A JP 25658185 A JP25658185 A JP 25658185A JP S62117489 A JPS62117489 A JP S62117489A
Authority
JP
Japan
Prior art keywords
respective cameras
video signal
signal
controlled
green color
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
JP25658185A
Inventor
Shigeru Morikawa
Original Assignee
Hitachi Denshi Ltd
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 by Hitachi Denshi Ltd filed Critical Hitachi Denshi Ltd
Priority to JP25658185A priority Critical patent/JPS62117489A/en
Publication of JPS62117489A publication Critical patent/JPS62117489A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To automatically adjust the tone setting of respective cameras by using a green color video signal of a reference camera as a reference value, inputting to the camera to be controlled, picking up the image of the same chart by the respective cameras, and adjusting a color reproductivity.
CONSTITUTION: The green color video signal from the reference camera is inputted to a reference signal input terminal 7 of the respective cameras to be controlled. The respective cameras to be controlled pick up the image of a specific chart including a white, a grey and a black component under the same condition, and input video signal outputs 12R, 12G, 12B together with the green color video signal 13 of the reference camera to a multiplexer 14. The multiplexer selects the input signal according to a control mode through the instruction from an microprocessor 15 and inputs to a differential amplifier 16. The output signal of the amplifier 16 has a specific part sampled by a sample pulse 18 and the quantity of control for making a video difference signal zero is calculated in the microprocessor 15.
COPYRIGHT: (C)1987,JPO&Japio
JP25658185A 1985-11-18 1985-11-18 Color television camera device Pending JPS62117489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25658185A JPS62117489A (en) 1985-11-18 1985-11-18 Color television camera device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25658185A JPS62117489A (en) 1985-11-18 1985-11-18 Color television camera device

Publications (1)

Publication Number Publication Date
JPS62117489A true JPS62117489A (en) 1987-05-28

Family

ID=17294618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25658185A Pending JPS62117489A (en) 1985-11-18 1985-11-18 Color television camera device

Country Status (1)

Country Link
JP (1) JPS62117489A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196679A (en) * 1983-04-22 1984-11-08 Toshiba Corp White balance adjusting system in plural color television cameras

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196679A (en) * 1983-04-22 1984-11-08 Toshiba Corp White balance adjusting system in plural color television cameras

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