Image processing apparatus using pulse width modulation with imp

Details Image processing apparatus using pulse width modulation with imp Image processing apparatus using pulse width modulation with imp

1988-08-23

1989-05-16

Evans, Arthur G.

Boots, shoes, and leggings

346154, H03K 1300

Patent

active

048313920

ABSTRACT:
An image processing apparatus includes an image signal generator for generating an image signal, an edge detector for detecting an edge of the image signal, a triangle wave generator for generating a reference signal, a multiplier or subtracting circuit for modulating the reference signal on the basis of a detection output from the edge detector and outputting a modulated reference signal, and a comparator for processing the image signal from the image signal generator by using the modulated reference signal and for generating a pulse width modulated signal.

REFERENCES:
patent: 4685069 (1987-08-01), Inui et al.
patent: 4736315 (1988-04-01), Ozaki et al.

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