Switching matrix
AssigneeMitel Corporation
InventorPatrick R. Beirne
Life of this patent
Estimating the term…
Abstract
A non-blocking switching network which has considerably fewer crosspoint switches than would otherwise be expected. The network is comprised of a primary stage having n inputs and m outputs, a plurality of secondary stages each having m inputs and p.sub.1, p.sub.2, . . . p.sub.p outputs, output m.sub.x being connected via switching crosspoints to all of the outputs p.sub.x, p.sub.(x+1) and p.sub.(x+3), where x is an integral number of the m.sup.th output from 1 to m/2, output m.sub.y being dedicated and connected via switching crosspoints to all of the outputs of the y.sup.th secondary stage, where y=an integral number from m/2+1 to m.
Claims10
A switching network comprising:
- (a) a primary stage having n inputs each switchable to m outputs,
- (b) a plurality of secondary stages, each having m inputs and p outputs,
- (c) the outputs of each secondary stage being connected individually via switching crosspoints and the m inputs to a corresponding number of the m outputs of said primary stage in common with corresponding outputs of all of the other secondary stages, and
- (d) all of the outputs of individual secondary stages being connected via further switching crosspoints to corresponding further individual dedicated ones of said m outputs.
A switching network comprising:
- (a) a primary stage having n inputs each switchable to m outputs,
- (b) a plurality of secondary stages each having m inputs and p.sub.1, p.sub.2 . . . p.sub.p outputs,
- (c) output m.sub.x being connected via switching crosspoints to all of the outputs p.sub.x, p.sub.(x+1) and p.sub.(x+3), where x is an integral number of the m.sup.th output from 1 to m/2,
- (d) output m.sub.y being dedicated and connected via switching crosspoints to all of the outputs of y.sup.th secondary stage,
- where y=an integral number from (m/2+1) to m.
A switching network comprising m inputs and p outputs, input m.sub.x being connected via individual switching crosspoints to all of the outputs p.sub.x, p.sub.(x+1) and p.sub.(x+3), where x is an integral number of the m.sup.th output from 1 to m/2, input m.sub.y being dedicated and connected via individual switching crosspoints to (1/y) of all of the outputs, where y is an integral number from (m/2+1) to m.
A switching network comprising m inputs and p outputs, input m.sub.x being connected via individual switching crosspoints to all of the outputs p.sub.x, p.sub.(x+1) and p.sub.(x+3) where x is an integral number of the m.sup.th output from 1 to m-1, output m being dedicated and connected via switching crosspoints to all of the outputs of said secondary stage.
A switching network comprising:
- (a) a primary stage having n inputs each switchable to m outputs,
- (b) a secondary stage having m inputs and outputs p.sub.1, p.sub.2 . . . p.sub.p,
- (c) the output m.sub.x being connected via switching crosspoints to all of the outputs p.sub.x, p.sub.(x+1) and p.sub.(x+3),
- where x is an integral number of the m.sup.th output from 1 to (m-1),
- (d) output m being dedicated and connected via switching components to all of the outputs of said secondary stage.
Dependencies are inferred from the claim text.