Multiplex communications – Wide area network – Packet switching
Patent
1982-03-11
1984-08-14
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3408255, H04J 1500, H04L 522
Patent
active
044660960
ABSTRACT:
Apparatus and method for providing a transmit hierachy for efficiently managing a communications channel. Stations using a common communications channel are equipped with an apparatus for issuing a plurality of consecutive delay times. If energy is not detected on the channel during one of the consecutive time delays, the station is permitted to transmit. If energy is detected a shorter subsequent time delay is issued and the channel is again monitored. Stations are arranged in a transmit hierachy according to the earliest which have attempted access to the channel.
REFERENCES:
patent: 3553656 (1971-01-01), Bernhardt
patent: 3701109 (1972-10-01), Peters
patent: 3878512 (1975-04-01), Kobayashi et al.
patent: 4016539 (1977-04-01), Nanya
Heins Donald E.
McGaffin Robert C.
Frisone John B.
International Business Machines - Corporation
Olms Douglas W.
Scutch III Frank M.
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