Secret communication signal generating system

Details Secret communication signal generating system Secret communication signal generating system

1946-05-01

1976-06-22

Birmiel, Howard A.

Oscillators

Relaxation oscillators

331 78, H04K 100, H04L 904

Patent

active

039652971

ABSTRACT:
1. A key generating circuit for constructing a six-valued key by combination of signals of smaller ranges of values comprising means to produce two-valued signals of highly irregular occurrence, one signal having the values 0 and 1 unit, and the other having the values 0 and 3 units, means to produce a three-valued signal having the values 0 and 2 and 4 units occurring in irregular sequence, means to combine all of said signals in additive manner, and means effective when the summation signal has the value 6 units or a greater value for reducing such value by 6 units.

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