Digital noise generating apparatus

Details Digital noise generating apparatus Digital noise generating apparatus

1977-10-25

1983-08-02

Grimm, Siegfried H.

Oscillators

Electrical noise or random wave generator

343 18E, 455 1, H03B 2900, H03K 384

Patent

active

043968945

ABSTRACT:
A digital noise generator, wherein pseudo-random rapidly changing analog input voltages to a voltage controlled oscillator are used to generate corresponding rapidly changing discrete frequency outputs, is disclosed. Means are provided to delay the oscillator output by an amount at least equal to the rise time between each frequency change. The delayed and non-delayed oscillator outputs are electrically coupled through a switch that operates at times and at a rate to eliminate the rise time between frequency changes and thus improve the frequency spectrum.

REFERENCES:
patent: 3659219 (1972-04-01), Rueff, Jr.
patent: 4056788 (1977-11-01), Brown et al.

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