Data communication system

Details Data communication system Data communication system

1978-05-16

1979-12-04

Yusko, Donald J.

Communications: electrical

Digital comparator systems

178 58A, 179 15AL, H04Q 900, H04L 514, H04J 306

Patent

active

041774515

ABSTRACT:
Disclosed herein is a data communication system which carries out the transfer of data information. In said system, when one communication control unit is used as a transmitting side, said unit sends control signals, such as a receive command signal, to another communication control unit, and; when said one unit is used as a receiving side, said one unit sends control signals, such as various response signals, to said other communication control unit. In the data communication system according to the present invention, the same control signal has different meanings, depending on whether the communication control unit is used as a transmitting side or as a receiving side.

REFERENCES:
patent: 3618037 (1971-11-01), Wollum
patent: 3787627 (1974-01-01), Abramson et al.
patent: 3790717 (1974-02-01), Abramson et al.
patent: 3922486 (1975-11-01), De Jean
patent: 3956589 (1976-05-01), Weathers et al.
patent: 3979723 (1976-09-01), Hughes et al.

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