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:
Dec. 29, 1998
Filed:
Dec. 19, 1995
Karl Scott Mills, Lynnwood, WA (US);
Jeffrey Michael Holmes, Seattle, WA (US);
Mark Emil Bonnelycke, Seattle, WA (US);
Richard Charles Owen, Seattle, WA (US);
Cirrus Logic, Inc., Fremont, CA (US);
Abstract
A graphics controller circuit for converting a plurality of monochrome pixel data into a corresponding set of color pixel data in RGB 888 format. The graphics controller circuit packs the converted color pixel data into a plurality of 64-bit color pixel words, with each color pixel word comprising two complete color pixel words and portion of at least one another color pixel word. By having color pixel data cross word boundaries, graphics controller of the present invention optimally stores color pixel data in color pixel words. The graphics controller circuit further includes a half-word addressable split-RAM which enables continuous availability of subsets of monochrome pixel data during each clock cycle for conversion to color data.