Oscillators – Electrical noise or random wave generator
Patent
1987-08-10
1989-03-07
Grimm, Siegfried H.
Oscillators
Electrical noise or random wave generator
331 47, 331178, 331 57, 331111, 364717, H03K 384
Patent
active
048109754
ABSTRACT:
A random number generator designed for use with an electronic key uses a triangular output analog oscillator to vary the frequency of a higher frequency voltage controlled oscillator. The output of the voltage controlled oscillator is sampled at a rate much less than the rate of oscillation of the voltage controlled oscillator to produce random digital values.
REFERENCES:
patent: 4001817 (1977-01-01), Squires
patent: 4644299 (1987-02-01), Amoroso et al.
Dallas Semiconductor Corp.
Grimm Siegfried H.
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