Multiplex hierarchy for high capacity transport systems
CA 2289897 A1 · Owner: Brady, Jayne · Inventors: Brady, Jayne; Shields, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The SONET/SDH multiplexing hierarchy is extended to very high rates by creating new virtual containers of a higher capacity and their, associate pointers. The multiplexing hierarchy nests the pointers into the payload, so that the number of pointers on the high capacity line is importantly reduced, as the high rate spans of the network do not see the STS-1/STM-1 pointer granularity. Fewer pointers results in reducing the current complexity of pointer processing. The complexity of the multiplexing hierarchy is also reduced by the use of larger containers. The hierarchy may be extended to higher rates as needed, and may also be, used for other technologies besides SONET/SDH.
Read the whole patent
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 November 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 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.