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.

Date of Patent:
Feb. 24, 2004

Filed:

Sep. 21, 2000
Applicant:
Inventors:

Michael L. Heitner, Nepean, CA;

Jian J. Song, San Jose, CA (US);

Rudy Vianna, Hull, CA;

Assignee:

Nortel Networks Limited, St. Laurent, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/700 ;
U.S. Cl.
CPC ...
H03K 1/700 ;
Abstract

A novel folded Clos switch apparatus and method therefore for reducing the number of unemployed I/O terminals of a multistage Clos switching network by partitioning a crossbar switch to provide both the first (yth) and last (x−y+1th) stage of a multistage Clos switch where x is the total number of stages in the general case.


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