Photodetector automatic adaptive sensitivity system

Details Photodetector automatic adaptive sensitivity system Photodetector automatic adaptive sensitivity system

1982-07-02

1985-11-19

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358284, 364525, 382 54, H04N 104, H04N 514

Patent

active

045544603

ABSTRACT:
A photodetector system for generating a series of digital value signals indicative of light intensity and particularly adapted for use in computer enhancement of photography and spectroradiometry. Circuitry is provided for controlling both the integration time of the light as well as the amplification factor applied to the analog signal generated. Logic control circuits are provided to adjust the integration time and amplifier gain to maintain the analog-to-digital converter within its optimal range.

REFERENCES:
patent: 4045816 (1977-08-01), Cave
patent: 4200934 (1980-04-01), Hofmann
patent: 4216503 (1980-08-01), Wiggins
patent: 4399464 (1983-08-01), Hix et al.
patent: 4408231 (1983-10-01), Bushaw et al.
Golab et al, "FIDAC-Film Input to Digital Automatic Computer"; Pattern Recognition, Pergamon Press 1971, vol. 3, pp. 123-156.

Affiliated with

Also associated with

Rating

Photodetector automatic adaptive sensitivity system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photodetector automatic adaptive sensitivity system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photodetector automatic adaptive sensitivity system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-85585