Geometric processing system
CA 1237524 A · Owner: Yamaguchi, Fujio · Inventors: Yamaguchi, Fujio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A geometric processing system comprising a data converter means which divides a plane forming a graphic model into one or a plurality of triangles by diagonal lines drawn from a vertex thereof, and which produces vertex coordinates of triangles. Relying upon the data from the data converter means a, normal vector operation means finds normal vectors pointing outwardly of the triangles and point at infinity coordinates thereof. An interference test operation means calculates values of 4 x 4 determinants as well as logic values of the determinants; and interference point coordinate calculation means operates in reliance upon the operated result of the interference test operation means. The …
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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
- Granted May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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
Timeline From CIPO dates
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.