Multiplex communications – Wide area network – Packet switching
Patent
1990-09-12
1992-07-21
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 941, H04J 326
Patent
active
051329646
ABSTRACT:
A packet communication exchanging apparatus includes: a common communication channel through which a plurality of data packets are communicated; a plurality of input modules coupled to the common communication channel, for receiving the data packets and transferring the data packets to the communication channel; and, a plurality of output modules coupled to the common communication channel, for temporarily storing the data packets sent from the input modules via the communication channel, and for generating and sending a dummy packet to the communication channel when the amount of the data packets temporarily stored therein exceeds a predetermined threshold value, whereby the input module detects a packet contention occurring on the communication channel due to the dummy packet supplied thereto so as to control the data packet transmission from the input module to the communication channel.
REFERENCES:
patent: 4970720 (1990-11-01), Esaki
Kabushiki Kaisha Toshiba
Marcelo Melvin
Olms Douglas W.
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