Communications: electrical – Continuously variable indicating – With meter reading
Patent
1996-03-25
1998-07-21
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34082579, 395280, 395311, 395312, H04Q 1900, G05B 2302, G06F 1300
Patent
active
057840032
ABSTRACT:
A local area network switch includes input and output ports for receiving and transmitting broadcast and unicast data transmissions from and to corresponding network stations and a crosspoint switch for selectively routing data transmissions between the ports. All input ports have one connection to the crosspoint switch for forwarding incoming broadcast and unicast data transmissions to the crosspoint switch. Each output port has a unique unicast link to the crosspoint switch for receiving unicast transmissions directed solely to its corresponding network station. All output ports also share a second broadcast link to the crosspoint switch for receiving broadcast transmissions directed to all network stations. The crosspoint switch routes each unicast transmission from an input port only to the appropriate output port via the output port's unicast link and routes broadcast transmission from an input port to all output ports via the common broadcast link. Each output port can receive and store both unicast and broadcast transmissions routed concurrently through the crosspoint switch and can thereafter forward the stored transmissions sequentially to its corresponding network station.
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Yuval Tamir and Hsin-Chou Chi, IEEE Transactions on Parallel and Distributed Systems, vol. 4, No. 1, 1993, "Symmetric Crossbar Arbiters for VLSI Communication Switches," pp. 13-27.
Asongwed Anthony A.
Horabik Michael
I-Cube, Inc.
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