Apparatus and method for controlling exposure by shutter speed c

Details Apparatus and method for controlling exposure by shutter speed c Apparatus and method for controlling exposure by shutter speed c

1993-12-22

1996-11-26

Garber, Wendy

Television

Camera, system and detail

Optics

348229, H04N 5238

Patent

active

055790496

ABSTRACT:
An object of the present invention is to bring a video signal obtained by imaging into a proper level without use of a controllable diaphragm. An imaging apparatus is provided with no controllable diaphragm. Peak detection is performed by a peak detecting circuit for each vertical scanning interval. A peak value is applied to a control device. Necessary shutter speed control in a shutter control circuit, gain control in a pre-amplifier circuit and gain control in a GCA are carried out. Consequently, the level of the video signal obtained by the imaging is adjusted to a proper level without controlling a diaphragm, to obtain an image of proper brightness.

REFERENCES:
patent: 3576393 (1971-04-01), Thompson
patent: 4202014 (1980-05-01), Gilligan et al.
patent: 4516172 (1985-05-01), Miyata et al.
patent: 4843476 (1989-06-01), Fujoka et al.
patent: 5157502 (1992-10-01), Nakajima et al.

Affiliated with

Also associated with

Rating

Apparatus and method for controlling exposure by shutter speed c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for controlling exposure by shutter speed c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling exposure by shutter speed c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1976612