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Expired Canadian patentCanada

Processing image data

CA 2201681 C · Owner: Discreet Logic Inc. · Inventors: Haan, Gijsbert

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

Image data is processed consisting of a first data set representing a polarity of moving objects and a second data set derived from two dimensional video frames. Three dimensional video objects are perceived as moving in three dimensional space in response to a trajectory definition. The trajectories of the moving objects is modified in response to the position of the two dimensional video frames. The modification may be affected in response to a matte or key signal derived from the video images allowing the, foreground video image to be combined with three dimensional moving particles.

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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 April 3, 1997 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 3, 1997
GrantedApril 23, 2002
Term endedApril 3, 2017
Patent numberCA 2201681 C
Classification (IPC)H04N5/26 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 3, 1997Patent grantedApril 23, 2002Term endedApril 3, 2017

Sources & verification

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