Exposure-control device for use in video camera

Details Exposure-control device for use in video camera Exposure-control device for use in video camera

1986-12-01

1988-09-06

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 98, 358228, H04N 904

Patent

active

047696931

ABSTRACT:
An exposure-control device for use in a video camera comprises an integrator for integrating the image signal intermittently output from the camera, a gate for electrically separating or isolating the integrator from the camera, the gate being made nonconductive while the image signal is not output from the camera, and an exposure-control member for controlling a camera exposure level in accordance with the output from the integrator. Since the integrator is electrically separated from the camera during the periods when the image signal is not output from the camera, the integration value can be held during those periods.

REFERENCES:
patent: 3794408 (1974-02-01), Ian et al.
patent: 4532918 (1985-08-01), Wheeler
patent: 4546379 (1985-10-01), Sarofeen et al.
patent: 4622584 (1986-11-01), Nagasaki et al.
patent: 4638353 (1987-01-01), Nagasaki et al.
patent: 4653478 (1987-03-01), Nagasaki et al.
patent: 4689689 (1987-08-01), Saito et al.
Tietze, U.: Schenk, Ch.; Halbleiter-Schaltungstechnik, 5th Edition, Berlin Heidelberg, New York, 1980, pp. 198, 199--ISBN 3-540-09848-8.

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