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:
May. 01, 2001
Filed:
Jul. 30, 1999
J. Andrew Goossen, Issaquah, WA (US);
Andrew C. Godfrey, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Improving a process in which information is read, modified, and written, and in which reading information is more costly (e.g., slower) than writing information. The information may be pixel information from a second (or remote) image and the modification may be a blending operation with a first (or local) image. The pixel information of the second (or remote) image may be stored in a video display frame buffer at a display adapter. The display adapter may be coupled via a bus, such as a PCI bus for example, with a CPU (or other machine) which performs the modification, such as image blending for example. This process is improved by limiting the number of reads of the pixel information of the second (or remote) image. Further, reads may be combined when doing so improves read performance and when alignment conditions are met. All modify and all or some write steps may be performed after all read steps have been performed, rather than performing all three (3) steps on a pixel-by-pixel, or pixel vector-by-pixel vector basis.