Multiplex communications – Wide area network – Packet switching
Patent
1989-09-28
1992-06-02
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3701101, H04Q 1104, H04J 312
Patent
active
051193701
ABSTRACT:
A switching node for an optical communications switched network includes a circuit switch for making relatively long duration circuit-switched connections and an ATM message switch, which is coupled in the network via the circuit switch, for communicating relatively short duration messages or datagrams. The messages include signalling messages for establishing the circuit-switched connections, the ATM switch being coupled to control circuitry of the circuit switch for communication of such messages. The control circuitry includes free channel queues which enable the communication of signalling messages throughout a network to be effected rapidly without delays due to the time division multiplex frames in accordance with which the circuit switch is operated. In a preferred form, the control circuitry is constituted by a micro-controller and random access memory.
REFERENCES:
patent: 4821259 (1989-04-01), DeBruler et al.
"Burst Switching--An Introduction" by Stanford R. Amstutz, IEEE Communications Magazine, Nov. 1983, pp. 36 to 42.
"Asynchronous Time Division Techniques: An Experimental Packet Network Integrating Video Communication" by A. Thomas, M. Servel, and J. P. Coudreuse, ISS, May 1984.
"Integrated Wideband Networks Using Asynchronous Time Division Techniques" by H. Le Bris and M. Servel, IEEE International Conference on Communications, 1986.
"Preclude: An Asynchronous Time-Division Switched Network" by J. P. Coudreuse and M. Servel, IEEE International Conference on Communications, 1987.
Chin Wellington
Haley R. John
Northern Telecom Limited
Olms Douglas W.
LandOfFree
Switching node for a communications switching network does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switching node for a communications switching network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching node for a communications switching network will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2235128