Automatic focusing device wherein loop gain is set responsively

Details Automatic focusing device wherein loop gain is set responsively Automatic focusing device wherein loop gain is set responsively

1990-12-12

1992-08-18

Perkey, W. B.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

35419512, 358227, G03B 300, H04N 5232

Patent

active

051403579

ABSTRACT:
An automatic focus adjusting device comprising extracting circuitry for extracting a focus signal from an image sensor corresponding to the degree of focusing of an image sensing signal output from the sensor, a drive device for adjusting focus so as to bring an optical system into a focuses state on the basis of the focus signal and a control unit operative to detect a magnification varying operation of the optical system for controlling a loop gain of a closed loop encompassing the image sensor, the extracting circuitry and the drive device.

REFERENCES:
patent: 4920420 (1990-04-01), Sano et al.

Affiliated with

Also associated with

Rating

Automatic focusing device wherein loop gain is set responsively does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic focusing device wherein loop gain is set responsively , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic focusing device wherein loop gain is set responsively will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1252080