System and method for increasing the robustness of an optical ring network
CA 2318077 A1 · Owner: Mci Communications Corporation · Inventors: Nathan, Sridhar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for increasing the robustness of an optical ring network having a plurality of ring nodes. Optical data traffic is transmitted between a plurality of ring nodes (112, 114, 116 118, 120, 122) via optical links , (154 158). A first optical cross connect switch (104) and a second optical cross connect switch (106) are coupled to an alternate network (150 152, 154). The first optical cross connect switch is coupled to a first ring node. When a failure is detected in the first optical link then the first optical , cross connect switch couples the first ring node to an alternate path (152) of the alternate network, and the second optical cross connects switch couples the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2021.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.