Common channel access method for a plurality of data stations in

Details Common channel access method for a plurality of data stations in Common channel access method for a plurality of data stations in

1977-10-13

1978-06-20

Robinson, Thomas A.

179 15AQ, H04J 308

Patent

active

040963551

ABSTRACT:
A method is disclosed by which several data stations which use a single communication channel, and which are simultaneously ready to transmit a data packet, can send a request for channel allocation, and will be granted the channel each for one data packet transmission, all within one time frame without central control, polling, or collisions. Addresses of all data stations desiring channel allocation are interleaved and superimposed in a specific manner for transmitting the requests, and by observing the resulting common signal, each data station determines when it can send its data packet. An arrangement for a data station is also disclosed which comprises the means necessary for transmitting address characters in an interactive procedure simultaneously with other stations, and for determining the allocated packet time slot.

REFERENCES:
patent: 3597549 (1971-08-01), Farmer et al.
patent: 3732543 (1973-05-01), Rocher
patent: 3855422 (1974-12-01), Cadiou et al.
patent: 3985962 (1976-10-01), Jones et al.

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