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:
Apr. 14, 1998
Filed:
Mar. 28, 1995
Brian H Danielson, Tomball, TX (US);
John J Watters, Spring, TX (US);
Timothy J McDonald, Houston, TX (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
A graphics controller for use in a computer system stores information from the screen memory portion of its frame buffer in a compressed form, either in a separate compressed data memory or a portion of the frame memory separate from the screen memory. Data in the compressed data memory references color data in a color dictionary. The display controller uses the color data from the compressed data memory to drive the display, thereby reducing accesses to the frame buffer by the display controller. Accordingly, other devices, such as hardware accelerators, have greater opportunities to access the frame buffer.