Information communication system with collision avoidance

Communications: electrical – Continuously variable indicating – With meter reading

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Details

370 85, 371 57, H04Q 900

Patent

active

043452507

ABSTRACT:
An information communication system having several transceivers connected to a communication medium. Each transceiver connected to a collision avoidance apparatus which determines if another transceiver is preparing to transmit on the communication medium by applying a unique predetermined D.C. voltage level to the communication medium.

REFERENCES:
patent: 4063220 (1977-12-01), Metcalfe
patent: 4099024 (1978-07-01), Boggs
patent: 4271523 (1981-06-01), Gable
Kleinrock, "Performance of Distributed Multi-Access Computer Communication System", 1977, 547-552.

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