Random digit generator

Details Random digit generator Random digit generator

1977-10-31

1979-04-24

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92DE, 235 92CC, 235 92R, 273138A, H03K 2132

Patent

active

041514041

ABSTRACT:
An apparatus having a digital circuit containing a variable-modulus counter and a frequency source for rapidly cycling the variable-modulus counter through all of its states is used to produce a random sample from the set of digits through which the variable-modulus counter is cycling upon the actuation of a pushbutton-controlled sampling circuit. The sample is added to previous samples, if any, and displayed or may be cleared. A modulus selector is used to determine the modulus, or operating range, of the variable-modulus counter and may utilize any suitable commercial type device such as a rotary switch and logic gates. A synchronizer operates in response to the sample pushbutton to enable sampling counting at an appropriate instant of time.

REFERENCES:
patent: 3064889 (1962-11-01), Hupp
patent: 3584398 (1971-06-01), Meyer et al.
patent: 3709499 (1973-01-01), Lukens
patent: 3918716 (1975-11-01), Nonaka et al.
patent: 3929338 (1975-12-01), Busch
patent: 3962565 (1976-06-01), Guyen-Phuoc

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