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:
Oct. 17, 1995
Filed:
Dec. 28, 1992
Neil F Trevett, Surrey, GB;
3D Labs Ltd., Egham, GB;
Abstract
In a 2-D graphics rendering system having a plurality of processors (PROC 0 to PROC 3) which receive instructions from a common instruction register (IR) and render polygons in a framestore (FS), in order to permit asynchronous performance of the instructions and yet ensure that overlapping polygons are properly rendered, each instruction includes an ordering code, and before writing a pixel to the framestore (FS) each processor checks that the ordering code of the polygon it is rendering is more significant than an ordering code for that pixel stored in an ordering buffer in which case the pixel is written to the framestore (FS) and the order buffer (OB) is updated, but if not the pixel is not written.