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Expired Canadian patentCanada

Method of the wavelet encoding of a meshed object

CA 2453283 C · Owner: Gioia, Patrick · Inventors: Gioia, Patrick

CIPO record

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Abstract From the Canadian patent

The invention relates to a method of coding an object having at least two dimensions which is associated with a basic mesh comprising a set of basic surfaces and with coefficients in a base of wavelets corresponding to local modifications to said basic mesh.The inventive method delivers a global data flow that can be used to reconstruct the object. According to the invention said wavelet coefficients are partitioned into at least two disjoint subsets each of which is encoded independently. Subsequently positional data are , inserted by the method into the global data flow which can be used to locate wavelet coefficients relative to a portion of the object in said global data flow, in …

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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 July 4, 2002 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 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.
FiledJuly 4, 2002
GrantedDecember 10, 2013
Term endedJuly 4, 2022
Patent numberCA 2453283 C
Classification (IPC)G06T9/00

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJuly 4, 2002Patent grantedDec 10, 2013Term endedJuly 4, 2022

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