Method and apparatus for an optimized digital subscriber loop access multiplexer
CA 2308533 A1 · Owner: Bradshaw, John Richard · Inventors: Brown, Jeffery John; Bradshaw, John Richard; Loewen, Jonathan David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A subscriber loop multiplexer for connecting a number of subscribers to a highbandwidth , carrier uses and architecture allowing centralization of the traffic management, switching, and signaling functionality. Specific embodiments provide single stage of traffic, management and switching functionality serial point to point interconnection of line access, functions to uplink functions non-statistical multiplexing of upstream cell traffic, per line card, flow control of upstream cell traffic per port multistage flow control of , downstream traffic and, per port cell emission scheduling of downstream traffic.
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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 May 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 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.