Control method of adaptive array and adaptive array apparatus
CA 2244344 C · Owner: Nec Corporation · Inventors: Hoshuyama, Osamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adaptive array apparatus which can follow high speed movement of an interference signal source while reducing breathing noise and maintaining high quality of an output signal. The adaptive array apparatus uses an indicative value relating to the amplitude of an output signal of a beam former and having higher sensitivity with respect to the target signal source than sensitivity with respect to another signal source, and an indicative value relating to the amplitude of an output signal of a beam former having lower sensitivity with respect to the target signal source than sensitivity with respect to another signal source, and determines a step size of an adaptive algorithm in the adaptive …
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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 July 30, 1998 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2020.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.