Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1981-01-29
1984-02-07
Miller, C. D.
Communications: electrical
Audible indication
Percussion-type sound producer
340347DD, 318654, H03K 1300
Patent
active
044306407
ABSTRACT:
A step data to synchro converter for coupling one of a plurality of different step data transmitters to one of a plurality of different synchro receivers. The output of the step data transmitter is applied to an interface circuit and processed into a three bit binary code suitable for actuating a plurality of switching means. The switching means selectively apply an in-phase and an out-of-phase output of a transformer, which is responsive to the synchro receiver's reference voltage and frequency source, to a plurality of transformers associated with the input stator windings of the synchro receiver. The output of the plurality of transformers is a drive signal which satisfactorily approximates synchro data.
REFERENCES:
patent: 3359474 (1967-12-01), Welch
patent: 3488653 (1970-01-01), Rasche
patent: 3829752 (1974-08-01), Martines
patent: 4270120 (1981-05-01), Prill
Hermansdorfer James E.
Spurgin William T.
Miller C. D.
Sperry Corporation
Terry Howard P.
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