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Expired Canadian patentCanada

Multiparametric direction finding method comprising the separation of the incidence and nuisance parameters

CA 2572017 C · Owner: Ferreol, Anne · Inventors: Ferreol, Anne; Larzabal, Pascal

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Abstract From the Canadian patent

The invention relates to a multiparametric direction finding method which is intended for use in relation to several sources in an array of N sensors comprising at least the following steps consisting in: a) selecting a parameter to be determined or a parameter of interest; b) expressing the direction vector in the form of a linear relation between the selected parameter of interest and the secondary parameters b0(.theta. .PHI.0)= U0(.theta.) .phi.0(.PHI. 0); c) performing a MUSIC-type direction finding step factoring the criterion that is used to determine angles of incidence in order to determine at least the incidence parameter; d) using the incidence value to determine the vector that …

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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 June 21, 2005 and granted September 9, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 21, 2005
GrantedSeptember 9, 2014
Term endedJune 21, 2025
Patent numberCA 2572017 C
Classification (IPC)H01Q3/26 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 21, 2005Patent grantedSep 9, 2014Term endedJune 21, 2025

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