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:
Oct. 06, 1981
Filed:
Jun. 28, 1979
Applicant:
Inventor:
Christian H Duret, Chatillon, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
179 / ; 3401 / ;
Abstract
Switching network unit formed of a plurality of N identical elementary nodal switching networks having addresses from O to (N-1). If N is chosen smaller than or equal to f.sup.p, f and p being two predetermined integers, each elementary nodal switching network is connected to 2p other elementary nodal switching networks through internodal links. The interconnection pattern allows the switching network capacity to be increased nodal switching network by nodal switching network. When adding to the unit an additional nodal switching network, p internodal links are cut out and the free ends thus obtained are connected to the additional nodal switching network.