1980-04-24
1982-08-31
Nusbaum, Mark E.
179 1SM, G10L 100
Patent
active
043474039
ABSTRACT:
This electrical waveform synthesizer uses a digital feedback loop circuit which includes selectable inputs for multiplex or recirculation operation, and a shift register whose shift rate is controlled by an adjustable precision clock so as to accurately adjust the frequency of the output waveform. The adjustable clock features a precision oscillator whose pulse rate is divided by a selectable-logic rate-divider circuit.
REFERENCES:
patent: 3500213 (1970-03-01), Ameau
patent: 3577084 (1971-05-01), Atcherson et al.
patent: 3777278 (1973-12-01), Majeau et al.
patent: 4124898 (1978-11-01), Munter
patent: 4223583 (1980-09-01), Deutsch
patent: 4228713 (1980-10-01), Gross
patent: 4244262 (1981-01-01), Imai
Davis, "Synthesis of Steady-State Signal etc.", NOL Publication No. NOLTR -215, Dec. 5, 1974, pp. 57-75.
Schwager Joseph E.
Urban Harry E.
Beers Robert F.
Kemeny E. S.
Nusbaum Mark E.
Skeer W. Thom
The United States of America as represented by the Secretary of
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