Circuit for controlling the electronic shutter speed of a video

Details Circuit for controlling the electronic shutter speed of a video Circuit for controlling the electronic shutter speed of a video

1991-12-11

1993-09-21

Razavi, Michael T.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358228, 358209, H04N 5238, H04N 5335

Patent

active

052473678

ABSTRACT:
A circuit for controlling the speed of an electronic shutter for a video camera using a CCD comprises a light intensity detector, a first generator, a second generator, and a comparator/controller, wherein the electronic shutter speed is controlled by adaptively varying a duration of the light storage of the CCD for every vertical period in response to a light intensity of an object.

REFERENCES:
patent: 4782394 (1988-11-01), Hieda et al.
patent: 4984002 (1991-01-01), Kokubo
patent: 5097340 (1992-03-01), Tanabe et al.

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