Multiplex communications – Wide area network – Packet switching
Patent
1988-12-06
1991-11-26
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3408255, H04J 302
Patent
active
050688480
ABSTRACT:
A device (MAM) including a common data resource (RAM) to which a first (PR) and several second (LC) stations are coupled. This device includes a first transmission circuit (DB, MD, LD2, LD1, DBU) coupling the common resource and the first station and, for each of the second stations, a second transmission circuit (DB, MD) coupling the common resource and a buffer circuit (LR; LW) and a third transmission circuit (PISO, SO; SI, SIPO) coupling the buffer circuit and the corresponding second station and which is used at predetermined moments (T1, T2, T3; T4). The device also includes a priority circuit (CLC, SG) which grants the highest priority to the requests for the use of the first transmission circuit and the following priorities to the requests for the use of the second transmission circuits in decreasing order of the frequencies (SOS; SIS) of the corresponding predetermined moments.
REFERENCES:
patent: 4740956 (1988-04-01), Hailpern et al.
patent: 4791553 (1988-12-01), Campanini
Haspeslagh Didier R.
Rabaey Dirk H. L. C.
ALCATEL N.V.
Chin Wellington
Olms Douglas W.
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