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Expired Canadian patentCanada

Electro-optical step-frame camera system with image motion compensation

CA 2219813 C · Owner: Bennett, Russell A. · Inventors: Bennett, Russell A.; Beran, Stephen R.; Lareau, Andre G.

CIPO record

Overview

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Abstract From the Canadian patent

An electro-optical step-frame camera system in which succesive overlapping frames of scene imagery are generated by an electro-optical imaging array and , in which electronic image motion compensation is performed by the array during the generation of at least some of the frames of imagery (100). The succesive frames of imagery are made in a stepping pattern that is repeated in a series of cycles of steps, each step separated by a framing interval in which a frame of imagery is obtained (142). The stepping cycles of the camera generate sweeping coverage of the terrain of interest. As the velocity of height to ratio of the reconnaissance aircraft changes the stepping cycle and , …

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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 4, 1996 and granted July 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2018.
  • 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 4, 1996
GrantedJuly 18, 2000
Term endedJune 4, 2016
Patent numberCA 2219813 C
Classification (IPC)G01C11/02 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 4, 1996Patent grantedJuly 18, 2000Term endedJune 4, 2016

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