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. 01, 2015
Filed:
Nov. 30, 2007
Adam Jackson, Westford, MA (US);
Adam Jackson, Westford, MA (US);
Red Hat, Inc., Raleigh, NC (US);
Abstract
Embodiments relate to systems and methods for generating address information to translate the order in which memory locations are accessed in a video buffer, to maintain a desired orientation in a rotated display. A video buffer is filled with display data to drive a CRT, LCD, or other display screen, starting with the upper-left corner. When the user rotates the display screen, the display screen continues to scan from the same starting corner, resulting in a misaligned orientation. In embodiments, a correct orientation can be automatically generated by determining a scan direction for the rotated display. The physical location of the new logical starting pixel is determined, and the rows and columns of the display image are rendered in a revised logical order which compensates for the amount and direction of rotation.