Key pulse generator for secrecy signalling circuit

Details Key pulse generator for secrecy signalling circuit Key pulse generator for secrecy signalling circuit

1944-09-27

1976-09-28

Birmiel, Howard A.

Telegraphy

Systems

Printing

178 22, 331 78, 340357, H04L 904

Patent

active

039833267

ABSTRACT:
6. In a pulse generating system, means for producing irregular pulses in each of a number of separate circuits, an output for each of said circuits, a pair of holding devices for each of said circuits, means for connecting said holding devices one at a time to their respective circuits and means for combining pulses impressed on each of said outputs from said several circuits with other pulses from a corresponding one of said holding devices.

REFERENCES:
patent: 1369805 (1921-03-01), Hamilton
patent: 1461783 (1923-07-01), Parker et al.
patent: 1561227 (1925-11-01), Griggs
patent: 1940016 (1933-12-01), Ranger
patent: 1954170 (1934-04-01), Gibbs et al.
patent: 1965121 (1934-07-01), Kardorff
patent: 2089639 (1937-08-01), Bedford
patent: 2145332 (1939-01-01), Bedford
patent: 2236705 (1941-04-01), Campbell

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