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:
Sep. 13, 1994
Filed:
Jun. 03, 1993
Kurt Akeley, Union City, CA (US);
Silicon Graphics, Inc., Mountain View, CA (US);
Abstract
A method for determining the coverage of a pixel, which includes determining a function of the distance from the currently sampled point to each edge of a polygon and then adding a predetermined value to the value of the function. This value is then clamped according to a function which provides an output of a predetermined value if the input to the function is not within a predetermined range and otherwise provides the value of the input if the input is within the predetermined range. The coverage of the pixel by the polygon is computed by multiplying the clamped functions. Blending the parameter values is performed if the value of the coverage falls within a predetermined range; otherwise, no blending occurs.