Atm inverse multiplexing system
CA 2209388 C · Owner: Pmc-Sierra Inc. · Inventors: Lang, Steven; Cam, Richard; Huscroft, Charles Kevin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ATM inverse multiplexing cell-based system for reducing error-multiplication due to error events in the transmitted cell stream, which includes a first IMA assembly having an input coupled to an incoming cell stream from a first ATM layer device, a second IMA assembly having an output coupled to a second ATM layer device a plurality of, links coupling the first IMA assembly to the second IMA assembly. The first IMA assembly includes a multiplexer for multiplexing the incoming cell stream onto the plurality of links and for inserting onto the links framing cells in the form of "st" cells in place of idle cells and "S" cells to mark divisions in each channel corresponding to a given number …
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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 June 30, 1997 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2019.
- 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
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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.