Variable rate digital controller for a frequency synthesizer

Details Variable rate digital controller for a frequency synthesizer Variable rate digital controller for a frequency synthesizer

1979-02-02

1981-05-26

Waring, Alvin H.

Communications: electrical

Digital comparator systems

235 92EV, 455185, G01R 2310

Patent

active

042701171

ABSTRACT:
Variable rate digital control of a frequency synthesizer is afforded by periodically generating a digital signal from among a plurality of such digital signals representative of various tuning rates, converting each digital signal to a digital control word through a rate decoding means in which each control word is associated with at least one of the digital signals, applying the control words to a digital counting means having a plurality of counting rates, with each rate being determined by a different one of the control words, and applying the digital count of the digital counting means to the frequency synthesizer to control its frequency.

REFERENCES:
patent: 2656106 (1953-10-01), Stabler
patent: 3023373 (1962-02-01), Naylor
patent: 3518586 (1970-06-01), Nilssen et al.
patent: 3573734 (1971-04-01), Williams
patent: 3651469 (1972-03-01), Keese
patent: 3665323 (1972-05-01), Peterson

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