Method and apparatus for a digital difference frequency mixer

Details Method and apparatus for a digital difference frequency mixer Method and apparatus for a digital difference frequency mixer

1986-08-08

1988-10-11

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307271, 307479, 307525, 328140, H03K 906, H03K 1900

Patent

active

047774479

ABSTRACT:
In a digital difference-frequency mixer equipped with a bistable trigger stage, the following gates are proposed: a first EXOR-gate to which a first signal and a second signal are directly applied, a second EXOR-gate to which these two signals are applied each delayed by one quarter period, a first AND-gate to which the output signals of the first EXOR-gate and the second EXOR-gate are directly applied, a second AND-gate to which these output signals are applied in inverted form and an RS-flip-flop. The output signal of the first AND-gate is applied to the set pulse input of the RS-flip-flop and the output signal of the second AND-gate is applied to the reset pulse input of the RS-flip-flop.

REFERENCES:
patent: 3354398 (1967-11-01), Broadhead, Jr.
patent: 3448389 (1969-06-01), Suzuki et al.
patent: 3509476 (1970-04-01), Roth
patent: 3526841 (1970-09-01), Holmboe
patent: 3656063 (1972-04-01), Vollmer
patent: 3735324 (1973-05-01), Phillips
patent: 3866129 (1975-02-01), Cornelissen

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