Method and apparatus for adaptively selecting an antenna in a mobile radio communications system
CA 2176613 C · Owner: He Holdings, Inc. · Inventors: Corrigan, John E. Iii; Lee, Lin-Nan; Macdonald, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for selecting an antenna in a mobile radio communications system is described. An antenna selector switch, at least two receive paths and, a demodulator are included. The demodulator makes signal quality measurements on the received signals processes, the received signals and controls the antenna selector switch. The method includes receiving signals at a demodulator from at least two receive paths measuring, signal quality of the received signals and controlling, a switch connected to a plurality of antennas with the demodulator based on the signal quality measurements.
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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 14, 1996 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2018.
- 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.