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Expired Canadian patentCanada

Aggregate beamformer for use in a directional receiving array

CA 2407242 C · Owner: National Research Council Of Canada · Inventors: Havelock, David I.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Disclosed is a method and apparatus of creating a virtual beam in a desired beam , direction from an array of analog signal components. Preferably a random , number , generator provides a random sequence of indices of said array and provides an associated sequence of time delays, the random sequence of indices including specific statistical properties. A multiplexer selects individual analog signal , components of said array in a sequence based on the specific statistical properties. , An analog to digital converter digitizes the analog signal components of said array to , generate an aggregate digital signal comprising digital signal components to provide , the single sequence of …

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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 October 9, 2002 and granted May 31, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 9, 2002
GrantedMay 31, 2011
Term endedOctober 9, 2022
Patent numberCA 2407242 C
Classification (IPC)G01S3/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 9, 2002Patent grantedMay 31, 2011Term endedOct 9, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.