Digital method of pulse width modulation

Details Digital method of pulse width modulation Digital method of pulse width modulation

1974-02-27

1977-01-04

Kominski, John

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

325 38R, 332 9R, 329106, 340347AD, H03K 708

Patent

active

040017281

ABSTRACT:
Disclosed is a method of encoding information in a pulse width modulated nal using totally digital techniques. An incremental ramp wave is utilized as a modulation reference, and intercepts between the modulation reference and a signal to be encoded are detected and/or predicted logically by examining the values of these two signals at predetermined intervals.

REFERENCES:
patent: 3249895 (1966-05-01), Corney
patent: 3440566 (1969-04-01), Swanson
patent: 3478170 (1969-11-01), Hanni
patent: 3668560 (1972-06-01), Padalino
patent: 3699566 (1972-10-01), Schindler
patent: 3737897 (1973-06-01), Cuthbert et al.

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