Time division switching system for circuit mode and packet mode

Details Time division switching system for circuit mode and packet mode Time division switching system for circuit mode and packet mode

1981-02-04

1983-11-01

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 94, H04J 304

Patent

active

044133375

ABSTRACT:
The system switches first lines, each having a circuit mode channel and a packet mode channel, second circuit mode lines and third and fourth packet mode lines. The first lines are connected to subscriber equipments, each of which convoys both multiplexed channels which have a rate equal to that of the other lines. The second and third lines are connected to outside switching networks while the fourth lines are connected to a packet switching network. The number of the fourth lines is less than the sum of numbers of first and third lines. The fourth lines convey packets for all the connections established between two first lines or between a first line and a third line, or between a first line and the packet transmission medium served by the switching network. The system distinguishes the circuit mode channel and the packet mode channel in a first line. Switching is controlled either in response to the detection of the absence of flags in the incoming packet mode channel of a first line or in an incoming third line, or from switching network for a link from this network from a first or third line.

REFERENCES:
patent: 3988545 (1976-10-01), Kuemmerle et al.
Hideo Miyahara et al.. "Flexible Multiplexing Technique with two Types of Packet for Circuit and Packet Switched Traffic" Jun. 1981 the Transaction of IECE of Japan pp. 390-397.
Arozullah "Evaluation of Three Processor Architecture for A Sattelitel Packet Switch" ICC '80 1980 International Conference on Communication Seattle, WA USA (8-12 Jun. 1980).
Sanders "Pacuit Switching Combines Two Techniques in One Network" Computer Design vol. 15, No. 6 pp. 83-88 Jun. 1976.

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