H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 11/04 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2050083
The invention relates to a switching network for an asynchronous time-division multiplex transmission system comprising a first stage having a plurality of switching blocks (4 to 7), to which are applied over auxiliary lines cells and routing information intended for various trunk lines and which are coupled to at least one switching block (8, 9) of a second stage. Inputs of switching blocks (4 to 7) of the first stage are coupled to auxiliary lines and at least one output of a switching block (8, 9) of the second stage. Outputs of switching blocks of the first stage are coupled to trunk lines and to at least one input of a switching block of the second stage. A cell extraction circuit (56 to 61) which is always coupled to a control circuit (10 to 15) of the associated switching block is coupled either to at least one input or to at least one output of each switching block.
Mertelmeier Christine
Wolker Roland
Fetherstonhaugh & Co.
Koninklijke Philips Electronics N.v.
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