Method and apparatus for local area networks

Multiplex communications – Wide area network – Packet switching

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Details

370 89, H04J 302

Patent

active

046673229

ABSTRACT:
An improved method for transmitting messages from the buffers of a bus interface unit participating in a local area network is disclosed wherein the bus interface units are permitted to completely empty their buffers upon each possession of the token and thereby decrease the mean bus waiting time of the network. Further, to optimize network bus waiting time while maintaining an upper limit on BIU service time and thereby guaranteeing each bus interface unit of the network one opportunity to transmit during this upper limit time interval, each bus interface unit of the network monitors the BIU service time to determine when this time reaches the upper limit time interval and, thereafter, limits the quantum of information transmitted from its buffer to thereby prevent the BIU service time from increasing beyond the upper limit time interval.

REFERENCES:
patent: 4293948 (1981-10-01), Soderblom
patent: 4459588 (1984-07-01), Grow
patent: 4510599 (1985-04-01), Ulug
patent: 4517670 (1985-05-01), Ulug
patent: 4556974 (1985-12-01), Kozlik

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