The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 1978
Filed:
Oct. 06, 1976
Jacques Baudin, Lannion, FR;
Societe Lannionnaise d'Electronique SLE-Citerel S. A., Lannion, FR;
Abstract
A switching network comprises a matrix of cross-point switches disposed in a pattern at selected ones of the cross-points in an array of mutually othogonal inlets and outlets. The pattern of selected cross-points is built up from a rectangular array of basic layouts each comprising eight cross-point switches distributed among the 16 cross-points which is formed by a group of four consecutive inlets crossing a row of four consecutive outlets. There are two types of basic layout: an A-type having its switches at the outer cross-points of its odd numbered lines and at the inner cross-points of its even numbered lines, and a B-type having its switches at the other cross-points. The basic layouts are disposed in a binary pattern over the matrix such that the matrix has a first line of alternating types of layout, a second line of alternating pairs of layout types etc.; each n-th line having its layouts in sets 2.sup.n-1 layouts of each type. This arrangement is particularly suitable for two-stage space-division concentrators using analog multiplexers to constitute lines of outlet switches.