Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1984-04-05
1986-06-03
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307593, 307266, 250338, H03K 505, H03K 5156, H03K 372
Patent
active
045932077
ABSTRACT:
A synchronization circuit responds to externally supplied trigger input signals to provide a time adjustable output trigger pulse to a laser or other similar device at a desired time to initiate or control operation of the device. The synchronizer circuit provides a precise voltage pulse output in response to a square wave frequency signal input. The square wave input is processed and coupled to a linear comparator for subsequently driving a series connected multivibrator network. The multivibrator network is further controlled by a delay selector circuit for precisely adjusting the output time delay of the multivibrator output pulse. The output from the multivibrator network is coupled into a pulse repetition rate control circuit which is comprised of first and second series connected decade counters which also have selected outputs coupled to an array of NAND gates. Each of the NAND gates are further connected to a trigger rate selector switching circuit for selecting the repetition rate or frequency at which a triggered output from the synchronizer circuit would occur. For a trigger input pulse rate the respective NAND gates divide the pulses per second by known integer values to control the output trigger signal rate from the synchronizer circuit.
REFERENCES:
patent: 3605035 (1971-09-01), Rocheleau
patent: 3946322 (1976-03-01), Katz
patent: 4049953 (1977-09-01), Evans
patent: 4504749 (1985-03-01), Yoshida
Magnavox article, Tank Infrared Elbow (TIRE), Magnavox Government and Indrial Electronics Company, Electro-Optical Systems, 2 pages, undated.
Barr et al., 1R18 Mark II Quality Thermal Imaging, Barr and Stroud Ltd., 4 pages, Aug. 1981.
Friday William A.
McRight, Jr. Tulon C.
Mitchell Ronald W.
Bush Freddie M.
Gibson Robert P.
Heyman John S.
Lane Anthony T.
The United States of America as represented by the Secretary of
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