Network architectures with transparent transport capabilities
CA 2261448 C · Owner: Nortel Networks Corporation · Inventors: Solheim, Alan Glen; Tatar, Mohammed Ismael; Gagnon, Ronald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Architectures for a synchronous transport network of a telecommunications system using transparent transport capabilities are presented. The telecommunications network comprises a pair of transparent multiplexers (TMuxs) connected over a bidirectional high speed span for transparently transporting high rate traffic. Each TMux consolidates traffic from a plurality (I) of linear systems or a plurality of bidirectional self- healing rings each ring (K i) having a ring rate Ri and at least two nodes (A i B i). In another configuration, each TMux subtends a plurality of rings such TMuxes being adapted for connection as ring nodes in a high-speed ring. The upgrades obtained with TMuxes in both …
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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 February 11, 1999 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.