Device and method for determining pmd independent of sop
CA 2378068 A1 · Owner: Mci Worldcom, Inc. · Inventors: Way, David; Xia, Tiejun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A state-of-polarization (SOP)-independent device (226 326) and method for , determining polyrization mode dispersion (PMD) in an optical communication system having an optical transmission line (224 324), including a detector , (244, 344) coupleable to the optical transmission line (224 324), where the , detector (244, 344) is capable of analyzing a pulse shape of an optical signal on the optical transmission line to determine PMD of the optical signal. A corrector (246, 346) may be coupled to the detector (244 344), where the , corrector (246, 346) is capable of compensating the optical signal for the determined PMD. A controller (242, 342) may be coupled to the detector (244 344) and …
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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 July 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2022.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.