Multiplex communications – Wide area network – Packet switching
Patent
1982-09-13
1985-09-03
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 94, H04Q 1104
Patent
active
045396760
ABSTRACT:
Data communications connections between interactive terminals and host computers generally exhibit long holding times, while the data density of the transmissions is sparse. The circuit switch of a switching system is an inefficient and expensive medium for this type of communication. Thus, the subject switching system uses a packet switch connected in parallel with the circuit switch to handle bursty data traffic from interactive terminals. A routing bit is set in the data stream from each port circuit to indicate the nature of the transmission and this transmission is then routed to the packet switch if it is a bursty data transmissions while voice messages are routed to the circuit switch.
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IEEE Transactions on Communications, vol. COM-24, No. 10, pp. 1089-1100, Oct. 1976, C. J. Jenny & K. Kummerle, "Distributed Processing Within An Integrated Circuit/Packet-Switching Node".
NAECON 1981 Proceedings of the IEEE 1981, National Aerospace & Electronics Conference, Dayton, OH, USA, (May 19-21, 1981), M. J. Ross & K. A. Garrigus, "A Distributed Processing Architecture for Voice/Data Switching".
ICC '80 1980 International Conference on Communications, Seattle, WA, USA, (Jun. 8-12, 1980), M. J. Ross, J. H. Gottshalck & E. A. Harrington, "An Architecture for a Flexible Integrated Voice/Data Switch".
YComputer Design, vol. 15, No. 6, pp. 83-88, Jun. 1976, J. de Smet & R. W. Sanders, "Pacuit Switching Combines Two Techniques in One Network".
AT&T Bell Laboratories
Graziano James M.
Olms Douglas W.
Rokoff Kenneth I.
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