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Expired Canadian patentCanada

Apparatus for high speed morphological processing

CA 2228141 C · Owner: Tripath Imaging, Inc. · Inventors: Lee, Shih-Jong J.; Stephanick, James A.; Schmidt, Robert C.

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Abstract From the Canadian patent

A method for high speed morphological processing in a computerized image processing system starts by acquiring a binary image (10) and selecting feature and height values (12) corresponding to a desired morphological processing of an image. The image is scanned in a raster scanning sequence (14) so as to produce a scanned image including a plurality of pixels. A sequential labeling transformation is performed on each of the plurality of pixels of the scanned image so as to produce a transformed image (16). A thresholding operation is performed on the transformed image (18). The resultant image is translated (20).

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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 24, 1996 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 24, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 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.
FiledJuly 24, 1996
GrantedJanuary 1, 2002
Term endedJuly 24, 2016
Patent numberCA 2228141 C
Classification (IPC)G06K9/56 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 24, 1996Patent grantedJan 1, 2002Term endedJuly 24, 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.