Automatic digital circuit for synchronizing with a variable baud

Details Automatic digital circuit for synchronizing with a variable baud Automatic digital circuit for synchronizing with a variable baud

1982-02-05

1983-11-29

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

331 16, 331 25, 331 49, H03L 718

Patent

active

044183224

ABSTRACT:
Electronic switching means for synchronizing a voltage controlled oscillator output with a variable input Baud Rate Clock. A Baud rate counter ratio input to a Phase Lock Loop circuit is selected or electronically switched automatically according to the input signal Baud rate. Binary counters count down a clock during the time an input signal is high, and the result of the count is transferred to an output register which controls, on the basis of the count, the electronic switching of a Baud rate counter to select the appropriate counter ratio output.

REFERENCES:
patent: 3758720 (1973-09-01), Dinn
patent: 3891939 (1975-06-01), Bennett et al.
patent: 3893033 (1975-07-01), Finch
patent: 3903473 (1975-09-01), Foster
patent: 3913028 (1975-10-01), Bosselears
patent: 4011520 (1977-03-01), Schaefer

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