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Canadian application, no grantCanada

Method and apparatus for providing calligraphic light point display

CA 2504564 A1 · Owner: Cae Inc. · Inventors: Gruber, Andrew E.; Perey, Philippe Marce

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A visual display system uses commercial graphics processing units (GPUs) to determine an occlusion of calligraphic light points (CLPs) in a visual display. A color buffer pointer address of the GPUs is changed to point to a CLP subpixel counter and color datum associated with each CLP is changed to an identifier of the respective CLPs so that an occlusion count of GPU indications can be accumulated.

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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 November 1, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 1, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 1, 2002
GrantedNo grant recorded
Term endedNovember 1, 2022
Patent numberCA 2504564 A1
Classification (IPC)G06T15/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 1, 2002Term endedNov 1, 2022

Sources & verification

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