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:
Feb. 19, 2002
Filed:
Jun. 04, 1996
Applicant:
Inventor:
Nicholas J. N. Murphy, The Sands, GB;
Assignee:
3Dlabs Inc, Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 1/540 ;
U.S. Cl.
CPC ...
G06T 1/540 ;
Abstract
A graphics rendering system and method utilizing a unified memory space for a depth-buffer and the back framebuffer. To provide very high resolution with a limited memory, each primitive is rendered once to provide depth values, to determine which pixels of each primitive are displayed, and a second time to store the color values of pixels which are to be displayed. A flag bit is used to ensure that depth data and color data, which coexist in a common memory space, cannot be confused or interchanged.