Communications: electrical – Continuously variable indicating – With meter reading
Patent
1997-07-14
2000-07-11
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
370216, 395180, H04B 338
Patent
active
060879580
ABSTRACT:
Large scale, multi-stage switching networks for selectively routing electrical signals from a plurality of inputs to one or more of a plurality of outputs. In one embodiment, the network is comprised of first and second banks of switching matrices. The matrices within each bank are further grouped into primary, secondary, and tertiary stages. Each input circuit is interconnected to a respective input of one of the primary matrices within each bank, and each output circuit is interconnected to a respective output of one of the tertiary matrices within each bank. However, the input and output interconnections for the first and second banks are made in a significantly different fashion. A sequential, distributive connection is used inputs/outputs of the first bank, and a non-repetitive, distributive connection is used for inputs/outputs of the second bank. Non-repetitive, distributive interconnections are also provided between the primary/secondary stages, and between the secondary/tertiary stages. A user interface, interconnected to a computer and associated path solution software, displays existing input and output circuits for the network. The user selects the desired input to output(s) interconnection, and the software effects the most effective signal routing through the network, The unique interconnection scheme among the network elements reduces and number of switches required for large-scale networks, and eliminates signal blocking through the network.
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The Bell System Technical Journal, vol. XXXII, No. 2, dated Mar. 1953 pp. 406-424, "A Study of Non-Blocking Switching Networks" by Charles Clos.
Asongwed Anthony A.
Horabik Michael
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