Multiple input multiple output (mimo) wireless communications system
CA 2465775 C · Owner: Piping Hot Networks, Ltd. · Inventors: Carter, Richard A.; Clark, Paul; King, Nigel J. R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A MIMO wireless communications system includes first and second transceivers and , respective first and second antennas wherein the first transceiver and the first antenna are , operable to transmit and receive signals propagating along at least one signal path using at least , one coding and modulation scheme and the second transceiver and the second antenna are also , operable to transmit and receive signals propagating along the at least one signal path using the , at least one coding and modulation scheme. Each first and second antenna includes dual , polarized antennas for operating at different polarizations to transmit first and second signals, one signal being a delayed …
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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 April 27, 2004 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2026.
- 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.