Communication multiplexer having a variable priority scheme usin

Details Communication multiplexer having a variable priority scheme usin Communication multiplexer having a variable priority scheme usin

1980-09-29

1983-05-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 85, 364200, 3408255, H04J 302

Patent

active

043853820

ABSTRACT:
A data processing system includes a number of input/output devices coupled to a communication multiplexer which polls the devices in a predetermined order. Apparatus in the communication controller rearranges the polling order to provide highest priority to an input/output device in a receive mode that is currently operative and to give lowest priority to an input/output device in a transmit mode that has just completed its operation.

REFERENCES:
patent: 3702008 (1972-10-01), Groth
patent: 4100533 (1978-07-01), Napolitano et al.
patent: 4149144 (1979-04-01), Diefenderfer
patent: 4167782 (1979-09-01), Joyce et al.

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