System for simultaneous transmission of several pulse trains

Details System for simultaneous transmission of several pulse trains System for simultaneous transmission of several pulse trains

1976-07-02

1977-08-09

Griffin, Robert L.

Telegraphy

Systems

Printing

325 30, 325 39, 179 15AP, 178 67, 178 691, H04B 100, H04L 700

Patent

active

040413926

ABSTRACT:
A main pulse train at a main frequency and at least two derived pulse tra at submultiples of the main frequency are transmitted over a transmission path, from a transmitter to a receiver, in the form of pulses of alternating polarity. A first one of the derived pulse trains is transmitted as a single violation of bipolarity in the main pulse train while a second one of the derived pulse trains is transmitted as two successive violations of bipolarity in the main pulse train. The system is applicable to multiple synchronization (bit, frame etc . . . ) in a PCM digital transmission or switching system.

REFERENCES:
patent: 2912684 (1959-11-01), Steele
patent: 3467777 (1969-09-01), Rumble
patent: 3659053 (1972-04-01), Low
patent: 3828346 (1974-08-01), Forster
patent: 3949298 (1976-04-01), Boxall

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