H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/52
H04Q 3/68 (2006.01)
Patent
CA 1297571
- 41 - REARRANGEABLE MULTICONNECTION SWITCHING NETWORKS CONSTRUCTED USING COMBINATORIAL DESIGNS Abstract A switching network where a large class of combinatorial designs which are well known in the mathematical literature are for the first time applied to advantageously define the pattern of permanent connections effected between network input channels and initial network crosspoints, illustratively by a connection arrangement of a two-stage, rearrangeable network. The class of combinatorial designs comprises designs of three types: 1) block designs, 2) orthogonal arrays, and 3) difference sets. Each of these is used in a unique manner to derive an advantageous pattern of permanent connections.
554499
Hwang Frank Kwangming
Richards Gaylord Warner
American Telephone And Telegraph Company
Kirby Eades Gale Baker
LandOfFree
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