Color video camera

Details Color video camera Color video camera

1984-01-18

1984-12-18

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 535

Patent

active

044893450

ABSTRACT:
A color video camera includes an image pick-up device for converting images into electrical signals including a plurality of color signal elements, white picture forming circuitry for introducing a white picture to the image pick-up device and a white balance control for controlling a proportion of each color signal element contained in an output of the image pick-up device so as to have a prescribed ratio. A power source switch is included for supplying current to individual circuits in the video camera. The camera also includes an operation member having three positions. The member turns off the power source switch in a first position; it turns on the switch in a second position to control the white picture forming circuitry and introduces the white picture to the image pick-up device, thereby actuating the white balance control; in a third position it turns on the power source switch to control the white picture forming circuitry so as to prevent introduction of the white picture to the image pick-up device. The second position is located between the first and third positions.

REFERENCES:
patent: 4249197 (1981-02-01), Van Spaandonk
patent: 4340903 (1982-07-01), Tamura
patent: 4368482 (1983-01-01), Machida
"A New Automatic Color Camera", Underhill, Journal SMPTE, vol. 81, pp. 450-453, Jun. 1972.

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