Multiplex communications – Wide area network – Packet switching
Patent
1984-05-03
1986-05-27
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3701701, H04Q 1104, H04J 312
Patent
active
045920486
ABSTRACT:
An integrated packet switching and circuit switching system comprising a number of switching modules each connected to a different plurality of user terminals. Each switching module includes a time-slot interchange unit for providing circuit-switched communication channels and a control unit that controls the operation of the time-slot interchange unit. Each switching module also includes a packet switching unit used both to provide packet-switched communication channels among the user terminals connected to that switching module, and to switch control information between the user terminals and the control unit to establish circuit-switched calls and packet-switched calls.
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Beckner Mark W.
Davis James A.
Gausmann Eric J.
Hiller Thomas L.
Olson Philip D.
AT&T Bell Laboratories
Olms Douglas W.
Scutch III Frank M.
Watland Ross T.
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