The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1993
Filed:
Mar. 13, 1992
Kurt Akeley, Mountain View, CA (US);
Silicon Graphics, Inc., Mountain View, CA (US);
Abstract
A method and apparatus for producing a visually improved image on a video display in a computer controlled display system. The system and method converts a quadrilateral polygon to a pair of triangles by computing the dot product of the normal unit vectors of one set of opposing pair of vectices and computing the dot product of the normal unit vectors of the other set of opposing pair of vertices and then comparing these two dot products to determine which opposing pair of vertices produces the larger of the two dot products. The pair of opposing vertices which produces the largest dot product is used to form the common edge of the pair of triangles into which the quadrilateral is converted.