Circuitry for minimizing auto-correlation and bias in a random n

Details Circuitry for minimizing auto-correlation and bias in a random n Circuitry for minimizing auto-correlation and bias in a random n

1980-11-28

1982-10-19

Malzahn, David H.

Boots, shoes, and leggings

331 78, H03K 384

Patent

active

043553664

ABSTRACT:
A random number generator that provides bits at its output that are neither biased nor periodic. The generator includes a noise generator and sampling register that provide serial, randomly varying bits. A circuit within the generator for reducing auto-correlation or periodicity discards certain ones of the randomly varying bits, and includes a first shift register for receiving and storing the randomly varying bits and a second register for receiving in parallel and storing only a portion of the randomly varying bits from the first register. In order to eliminate bias, EXCLUSIVE OR gates are connected between the first and second registers in order to logically combine the randomly varying bits received by the second register with previous bits stored in the second register.

REFERENCES:
patent: 3691472 (1972-09-01), Bohman
patent: 3790768 (1974-02-01), Chevalier et al.
patent: 4115657 (1978-09-01), Morgan

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