Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-12-19
2006-12-19
Vu, Huy D. (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S392000, C370S395100, C370S401000
Reexamination Certificate
active
07151770
ABSTRACT:
A communication system includes a packet-switched network and a circuit-switched network. Gateways on the circuit-switched network adapt packet traffic for transmission on the circuit-switched network. The end-point of the switched virtual circuit is chosen by transmitting polling messages from the gateways to the destination address of the packet and selecting a gateway depending on the delay in the response to the respective polling message.
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British Telecommunications public limited company
Nixon & Vanderhye P.C.
Shand Roberta A.
Vu Huy D.
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