Data communicating method with capability of full-duplex communi

Details Data communicating method with capability of full-duplex communi Data communicating method with capability of full-duplex communi

1985-04-26

1987-03-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 31, H04L 514

Patent

active

046530444

ABSTRACT:
A communicating method for a data communications apparatus capable of transmitting data in a full-duplex mode over a two-wire circuit. Prior to the transmission of data, a transmit and a receive terminals exchange training signals to test circuit conditions in order to see if full-duplex communication therebetween is allowable. Depending upon the result of the test, either a full-duplex mode or a semiduplex mode is set up for data communication.

REFERENCES:
patent: 3956589 (1976-05-01), Weathers et al.
patent: 4288868 (1981-09-01), Grotjohann et al.

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