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Expired Canadian patentCanada

Target detection improvements using temporal integrations and spatial fusion

CA 2519908 C · Owner: Sutha, Surachai · Inventors: Chen, Hai-Wen; Sutha, Surachai; Olson, Teresa L.

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Abstract From the Canadian patent

A method for identifying potential targets as far away as possible is disclosed. In a simple background scene such as a blue sky a target may be , recognized from a relatively long distance but for some high clutter , situations such as mountains and cities the detection ragne is severely , reduced. The background clutter may also be non-stationary further complicating the detection of a target. To solve these problems target , detection (recognition) of the present invention is based upon temporal fusion (integration) of sensor data using pre-detection or post-detection integration techniques, instead of using the prior art technique of fusing data from only a single time frame. Also …

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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 March 18, 2004 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 18, 2004
GrantedDecember 18, 2012
Term endedMarch 18, 2024
Patent numberCA 2519908 C
Classification (IPC)G01S7/41 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 18, 2004Patent grantedDec 18, 2012Term endedMarch 18, 2024

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