Data communication network and method of communication

Details Data communication network and method of communication Data communication network and method of communication

1982-10-27

1986-01-14

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

34082506, 34082551, 370 85, H04Q 0000

Patent

active

045648387

ABSTRACT:
A local area network has a plurality of data stations 1 each connected to a common data channel 2 via a receiver 5, a transmitter 6 and a directional coupler 7, wherein, in order to resolve contention for the channel and at the same time providing each station with statistically an equal chance of gaining use of the channel, each station contends for use of the channel by transmitting, when the channel is free, transmission request signals in a sequence of consecutive time periods wherein in each time period the station either transmits a request or does not transmit a request according to a predetermined code. If in any time period a data station 1 transmits a request but detects no transmitted request by other stations, the station is permitted use of the channel 2. If the station 1 does not transmit in any time period and another station transmits a request, then the station aborts contention.

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