Oscillators – Automatic frequency stabilization using a phase or frequency... – Afc with logic elements
Patent
1976-10-18
1977-09-13
Grimm, Siegfried H.
Oscillators
Automatic frequency stabilization using a phase or frequency...
Afc with logic elements
328140, 331 9, 331 69, H03B 304
Patent
active
040485803
ABSTRACT:
An input signal, whose frequency is to be detected, is divided and sent i two arms. One arm applies a set phase and amplitude adjustment while the other arm has a phase response that is dependent upon the frequency. Both arms are fed to a phase detector whose output is used to indicate the frequency of the input.
REFERENCES:
patent: 3209286 (1965-09-01), Eveleth
patent: 3287656 (1966-11-01), Fleming
patent: 3287658 (1966-11-01), Sulzer
patent: 3320540 (1967-05-01), Ogi et al.
patent: 3392337 (1968-07-01), Neuburger
patent: 3852681 (1974-12-01), Underhill
Campbell Richard A.
Perry Robert W.
Sparks Richard A.
Bush Freddie M.
Edelberg Nathan
Gibson Robert P.
Grimm Siegfried H.
The United States of America as represented by the Secretary of
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