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:
Nov. 24, 1998
Filed:
Nov. 01, 1996
Dayang Dai, Houston, TX (US);
Compaq Computer Corp., Houston, TX (US);
Abstract
The present invention is a graphics subsystem with a plurality of storage elements addressed by multiple bit physical addresses and a video display with a plurality of pixels addressed by multiple bit logical addresses. The graphics subsystem includes an address conversion circuitry for converting the logical addresses of the pixels to physical addresses in the video memory. When the number of bytes needed to address the plurality of pixels across the screen is not equal to an integral power of two and the logical addresses of the plurality of pixels are arranged in tiles, the address conversion circuitry converts the logical addresses of the pixels to physical addresses in the video memory by converting only portions of the total address space into tiles at any one time.