Multiplex communications – Wide area network – Packet switching
Patent
1994-06-22
1996-06-25
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 84, 370 855, 370 8515, H04L 1242
Patent
active
055306969
ABSTRACT:
An intelligent multistation access unit is provided having a transmission speed detection circuit for determining the data transmission speed of an attached device attempting to gain access to a node of a multiple transmission rate digital data communications network. The intelligent multistation access unit is comprised of a speed detect circuit, which indicates the data transmission speed of the attached device, a switching circuit which directs the attached device to the speed detect circuit until switched to allow the attached device access to the network node, and a processor that controls the switching circuit and which permits the attached device access to the node depending on the data transmission speed indication.
REFERENCES:
patent: 5101405 (1992-03-01), Bekki et al.
patent: 5208831 (1993-05-01), Veno et al.
patent: 5365513 (1994-11-01), Copley et al.
patent: 5384779 (1995-01-01), Patrick et al.
Boggs Andrew K.
Hoang Quy N.
Jacobs Joe
Mullen John M.
Purrington Challis
Blum Russell W.
Cockburn Joscelyn G.
International Business Machines - Corporation
Olms Douglas W.
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