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:
Dec. 09, 2003
Filed:
Apr. 12, 2002
Applicant:
Inventor:
Fulvio Arecco, Monza, IT;
Assignee:
Cisco Phontonics Italy S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/00 ; H04B 1/000 ;
U.S. Cl.
CPC ...
G02F 1/00 ; H04B 1/000 ;
Abstract
A closed-ring transparent optical communication network that provides for protection of the principal communication channel of each supported wavelength and supports occasional traffic on a separate channel. In the case of a breakdown of or degradation in the principal channel, these communications are redirected to the occasional channel.