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Expired Canadian patentCanada

Compensation for overflight velocity when stabilizing an airborne camera

CA 2513514 C · Owner: The Insitu Group, Inc. · Inventors: Mercadal, Mathieu; Von Flotow, Andreas H.

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Abstract From the Canadian patent

A method and system for maintaining the line of sight of an airborne camera fixed on a target by compensating for overflight velocity of the aircraft. The compensation system automatically commands an angular velocity of the line of sight to maintain the camera pointing at the target being overflown. This angular velocity of the line of sight is computed based upon the aircraft overflight velocity and upon a vector from the aircraft to the target. This automatic compensation for aircraft overflight velocity causes the line of sight to remain fixed upon the target. The compensation system drives a gimbal system upon which the camera is mounted to perform this compensation …

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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 January 16, 2004 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 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.
FiledJanuary 16, 2004
GrantedApril 10, 2012
Term endedJanuary 16, 2024
Patent numberCA 2513514 C
Classification (IPC)G05D3/12 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJan 16, 2004Patent grantedApril 10, 2012Term endedJan 16, 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.