Phase discriminator

Details Phase discriminator Phase discriminator

1977-08-09

1978-12-05

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307232, 324 83D, H03D 1300

Patent

active

041288122

ABSTRACT:
An apparatus for providing a logical output indicative of when a signal is ither in-phase with a reference signal or alternately 180.degree. out-of-phase with a reference signal. Pulses are produced at each transition of the waveforms to be compared. A determination of their concurrence is then made and compared with a logical result of the inputs whereby a logical output indicative of whether the signals are in-phase or 180.degree. out-of-phase is generated.

REFERENCES:
patent: 3328688 (1967-06-01), Brooks
patent: 3430148 (1969-02-01), Miki
patent: 3532994 (1970-10-01), Ferrier
patent: 3755746 (1973-08-01), Hogue et al.
patent: 3805153 (1974-04-01), Gallant
patent: 3813604 (1974-05-01), Denoncourt
patent: 3854117 (1974-12-01), Fothergill

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