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:
Jul. 07, 1992
Filed:
Mar. 06, 1991
Applicant:
Inventor:
Irwin J Abramovitz, Baltimore, MD (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04J / ;
U.S. Cl.
CPC ...
359118 ; 359128 ; 359139 ; 370 943 ; 370 60 ;
Abstract
A controller at each node of a mesh type grid network of single mode optical fibers implements a switching algorithm which passes a given message to four neighboring nodes only once to avoid flooding the network. If a given wavelength is present on more than one input, the first to arrive is passed and the second to arrive is blocked. The network is configured to provide a large number of redundant paths, ensuring a high probability that a path will exist even in the face of significant network damage.