METHOD FOR UPDATING THE COLOR LOOK UP TABLES OF VIDEO DISPLAY DEVICES TO DISPLAY DIGITAL VIDEO SIGNALS

摘要

A method for updating the color look up tables (42) of video display devices during the active scan of the raster display without disrupting the normal viewing of the video display is disclosed. In operation, the present invention accesses color index information from only a first selected partition (50) of the color look up table (42) while updating color index information in another partition (54) of the color look up table (42). Then, color index information is accessed only from the updated partition of the color look up table while updating the color index information in the first selected partition (50). In this manner, the entirety of the color look up table (42) is updated while ensuring data integrity and minimizing the disruption of the normal viewing of the video display.