Digital arithmetic synthesizer phase lock loop with direct doppl

Details Digital arithmetic synthesizer phase lock loop with direct doppl Digital arithmetic synthesizer phase lock loop with direct doppl

1975-08-29

1976-08-03

Heyman, John S.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 78D, 324 82, 235175, 340347AD, 324 83D, H03B 1900

Patent

active

039732096

ABSTRACT:
Arithmetic frequency synthesizer, for use in a phase locked loop, having a partitioned frequency register to provide direct representation of doppler and repeatibility of frequency. Included are provisions for sweeping a range of signal frequencies of interest to acquire a lock on a desired signal within that range.

REFERENCES:
patent: 3689914 (1972-09-01), Butler
patent: 3882403 (1975-05-01), Gerken
patent: 3895294 (1975-07-01), Vinding
patent: 3898579 (1975-08-01), Aldridge
patent: 3922670 (1975-11-01), Shaw et al.

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