Method and apparatus for the rendering of geometric volumes
CA 2011101 C · Owner: Johnson, Elizabeth Ruth · Inventors: Johnson, Elizabeth Ruth; Mosher, Charles Edward, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus is provided to directly render volumes from volume data whereby the resolution of the volume is not lost and the volume data is completely interactive with geometric data.The volume or portion of the volume to be rendered is aligned to a geometric primitive and a mapping function is generated relating the geometric primitive to the volume or volume portion. The mapping function relates each voxel in volume space to an element or point of the primitive. Thus the volume is displayed as a function of the geometric primitive the volume or volume portion is mapped to. In the preferred embodiment the volume or portion of volume to be rendered is bound by one or more …
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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 February 26, 1990 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.