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. 14, 2000
Filed:
Jul. 28, 1997
Applicant:
Inventor:
Nicholas J Murphy, Guildford, GB;
Assignee:
3Dlabs, Ltd, Hamilton HMll, BM;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358-109 ; 382109 ; 382141 ; 382264 ; 382269 ; 382154 ; 382285 ; 358448 ; 345136 ; 345137 ; 345138 ; 345429 ; 345431 ; 345432 ;
Abstract
A system and method for performing 3D graphics copying operations in such a manner as to produce both a smooth image and smooth edges. The alpha value of each pixel is used to mark the pixels which are and are not part of the image to be copied, and removes unwanted pixels from bilinear filtering operations. After filtering, the resultant alpha values along the edges of the object are used to eliminate unwanted pixels, and to blend the object into the background of the image, which reduces or eliminates the 'blocky' edges.