Electronic pulse filtering system

Details Electronic pulse filtering system Electronic pulse filtering system

1957-07-22

1977-01-11

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328140, 328109, 307218, H03K 906, H03D 302

Patent

active

040029905

ABSTRACT:
An analyzing circuit is disclosed in which a train of pulses is applied in parallel to a normally closed gate and to a control circuit for opening and closing the gate. The control circuit includes a pair of single-shot multivibrators alternately driven by a bistable circuit and having adjustable pulse widths so that at a predetermined input frequency, the output pulse widths thereof will overlap when combined. The overlapped portions when combined then control by opening the gate to allow pulses above the predetermined frequency to pass through the analyzing circuit.

REFERENCES:
patent: 2444426 (1948-07-01), Busignies
patent: 2493648 (1950-01-01), Watton et al.
patent: 2533552 (1950-12-01), Brinster et al.
patent: 2538027 (1951-01-01), Mozley et al.
patent: 2545567 (1951-03-01), Bridges
patent: 2554112 (1951-05-01), Libois
patent: 2577827 (1951-12-01), Tompkins
patent: 2689299 (1954-09-01), Anderson
patent: 2776424 (1957-01-01), Lair et al.
patent: 2789267 (1957-04-01), Beal et al.
patent: 2795775 (1957-06-01), Faymoreau et al.

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