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:
Jul. 07, 1998
Filed:
Sep. 11, 1997
Applicant:
Inventors:
Spencer H Greene, Palo Alto, CA (US);
Andrew D Daniel, San Jose, CA (US);
Assignee:
Alliance Semiconductor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345509 ; 345439 ; 345515 ; 345153 ;
Abstract
A method and apparatus of displaying video and graphics data together in a computer graphics display using only the memory needed for the graphics display includes determining the location of the video window in the frame buffer, writing video data to the portion of the frame buffer bounded by the video window. During the raster scan of the frame buffer, if the raster position is within the video window, video data are read from the video data addresses within the video window. When the displayed video window position is changed, the video data are moved accordingly.