Phase detector circuit using logic gates

Details Phase detector circuit using logic gates Phase detector circuit using logic gates

1979-11-20

1981-09-22

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328134, 307516, 307526, 307528, H03D 1300, H03K 526

Patent

active

042912741

ABSTRACT:
A phase detector circuit having four dominant type flip-flop circuits and at least one logic gate. The phase detector circuit is responsive to changes of two input signals, and produces output signals related to the relative phase of the input signals having duty cycle. The output signals have a predetermined level only for the period the phases of the input signals differ. When the phases of the input signals are the same, the output signals of the phase detector circuit will be at another level.

REFERENCES:
patent: 3599102 (1971-08-01), Mous
patent: 3610954 (1971-10-01), Treadway
patent: 3755746 (1973-08-01), Hogue et al.
patent: 4027262 (1977-05-01), Sharpe
patent: 4090143 (1978-05-01), Merrell

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