Network switch for failure restoration
CA 2369048 A1 · Owner: Ellinas, Georgios · Inventors: Stern, Thomas E.; Ellinas, Georgios
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 automatically restoring a network which contains a node with a failed switch. Protection cycles are generated for the network to be restored and cyclegroups are generated from the protection cycles. Each node is provided with protection switches (105) which internally interconnect the input/output to connecting links via interconnecting protection fibers. The selection of which internal protection fibers upon which to switch transmitted information onto allows the node to be configured to create merged cyclegroups. Thus if a failure in the central switch is detected the , transmitted information is diverted to a selected protection fiber corresponding to a …
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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 March 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2022.
- 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.