Method for coded data transmission in half-duplex operation...

Details Method for coded data transmission in half-duplex operation... Method for coded data transmission in half-duplex operation...

H - Electricity

04

K

340/70

H04K 1/00 (2006.01) H04L 9/00 (2006.01) H04L 9/12 (2006.01)

Patent

CA 1156735

ABSTRACT OF THE DISCLOSURE A method for the coded data transmission in half-duplex operation between data terminal devices of two data stations employs a code device of the one data station to transmit a phase-in program to the code device of the other data station. Thereby, the code devices of the two data stations communicate via corresponding data transmission devices in full-duplex operation. After phase-in of crypto units of the two data stations in one direction, change of direction programs, data and end identifications are transmitted, and in the opposite direction, simultaneously, synchronizing signals are transmitted.

356416

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