Frequency discrimination circuit

Details Frequency discrimination circuit Frequency discrimination circuit

1984-06-18

1986-12-16

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307273, 307265, H03K 906

Patent

active

046299157

ABSTRACT:
The frequency discrimination circuit includes a monostable circuit into which an input signal is fed and a D-type flip-flop connected to the output side of the monostable circuit for generating a frequency discriminated signal. The circuit further includes a time constant modifying circuit for modifying a time constant of the monostable circuit according to the frequency discriminated signal from the D-type flip-flop.

REFERENCES:
patent: 3668423 (1972-06-01), Couch
patent: 3753130 (1973-08-01), Pezzuti
patent: 3753135 (1973-08-01), Kastner et al.
patent: 4339723 (1982-07-01), Yee
R. Schneider, "Single One-Shot Senses Frequency Limits", EDN, Electrical Design News, No. 16, Sep., 1981, p. 208.
Patent Abstracts of Japan, vol. 7, No. 57, 1983 (JP-A-57-203962).

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