Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-03-25
2008-03-25
Pham, Chi (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S422000
Reexamination Certificate
active
10630420
ABSTRACT:
A telecommunications switching node comprising a plurality of input and output (I/O) ports configured to receive and transmit telecommunications signals, a switching core comprising a plurality of switching networks and a backplane connecting each of the plurality of I/O ports to each of the switching networks in the switching core. A non-blocking path is provided for each communications signal from any of the input ports to any of the output ports via one of the switching networks in the switching core. Further, the switching system effects a non-blocking path via all of the switching networks in the switching core. Advantageously, the switching core comprises a pair of switching networks. Further, this telecommunications switching node is expandable by adding a second switching core comprising a pair of switching networks to the node. One or more of the plurality of I/O ports may include a switching network to effect connection through the backplane to both pairs of switching networks.
REFERENCES:
patent: 5459724 (1995-10-01), Jeffrey et al.
patent: 6741615 (2004-05-01), Patwardhan et al.
patent: 6798784 (2004-09-01), Dove et al.
patent: 7197031 (2007-03-01), Betts et al.
Bay Microsystems, Inc.
Hoang Thai
Pham Chi
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