Signaling system

Details Signaling system Signaling system

1945-05-10

1979-12-11

Birmiel, Howard A.

Telegraphy

Systems

Printing

178 22, 331 78, H04L 904

Patent

active

041784740

ABSTRACT:
6. In a key pulse system for generating key pulses of definite length and highly irregular magnitude with intervening spaces, cyclically operating devices for generating groups of irregular sequences of pulses at a rate much higher than the rate of occurrence of said key pulses, each such group of pulses existing for the length of one of said spaces, and means to determine the magnitude of the next key pulse from the last pulse in the group of pulses occupying the preceding space.

REFERENCES:
patent: 3968454 (1976-07-01), Busch
patent: 3983326 (1976-09-01), Gannett

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