A method for analyzing an acoustical environment and a system to do so
CA 2390844 A1 · Owner: Maisano, Joseph · Inventors: Maisano, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
So as to discriminate acoustical signals not only as a function of the angular impinging direction, but also as a function of the distance of an acoustical signal's source, the acoustical signals are registered by at least two mutually distant acoustical/electrical converters (1 2), and from the output , signals thereof the distance is calculated electronically (S3). The distancerepresenting signal is then amplitude filtered (6) and at least one of the , output signals of the acoustical/electrical converters (1 2) is weighted (8) , by the amplitude filtered distance-indicating signal before beam forming is , realized.
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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 18, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 18, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2023.
- 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.