400 Hertz harmonic generator

Details 400 Hertz harmonic generator 400 Hertz harmonic generator

1989-05-11

1989-11-21

LaRoche, Eugene R.

Oscillators

Electrical noise or random wave generator

364717, H03B 2900

Patent

active

048825514

ABSTRACT:
A signal generator includes a pseudo-random bit generator that feeds bits three screening gates and three interconnected counters to simulate the electronic interference noise source attributed to three 400 hertz motors. The electronic interference effect includes fluctuations of frequencies to represent the slight variations in motor-generator speeds attributed to the 400 hertz motors so that a more realistic evaluation can be made on nearby communications and navigation equipments.

REFERENCES:
patent: 3845484 (1974-10-01), Sawicki et al.
patent: 3961169 (1976-06-01), Bishop et al.
patent: 4013966 (1977-03-01), Campbell
patent: 4173000 (1979-10-01), Singer et al.
patent: 4375620 (1983-03-01), Singer et al.
patent: 4386913 (1983-06-01), Assard
patent: 4470022 (1984-09-01), Cernius et al.
patent: 4613831 (1986-09-01), Loftness
patent: 4673871 (1987-09-01), Brown et al.

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