Distributed 1xn protection switching architecture
CA 2287607 A1 · Owner: Lucent Technologies, Inc. · Inventors: Sivarasa, Sriram; Marcotte, Donald Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement is disclosed for providing equipment 1 x N protection switching in a communications network element or system having a plurality of working port units that process communication signals passing between a first and a, second location, having a backup port unit that is used to replace a defective one of, the working port units, having a protection switch unit that switches the backup port, unit for a defective working port unit and having a controller for monitoring the, operational status of the working port units and upon determining that one of the, working port units is defective initiates the switch of the backup port unit for the, defective working port, wherein 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 October 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.