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. 04, 2006
Filed:
Dec. 29, 2000
Fulvio Arecco, Monza, IT;
Valerio Viscardi, Paderno Dugnano, IT;
Aldo Aprile, Milan, IT;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An autoprotected optical communication ring network includes a first and a second optical carrier having opposite transmission directions and a plurality of optically reconfigurable nodes optically connected along the first and the second optical carrier and adapted to communicate in pairs on links susceptible to failure, the ring network having a normal operative condition in which the nodes of each pair are optically configured so as to exchange optical signals on a working arc path at a respective first wavelength (λ) on the first carrier and at a respective second wavelength (λ) different from the first wavelength (λ) on the second carrier, the working path having a complementary arc path defining a protection arc path in which the first wavelength (λ) on the first carrier and the second wavelength (λ) on the second carrier can be used for further links.