Patent ID: 7456904
Filing Date: 2008-11-25
Classification: G09G,H04N

Abstract:
1. A method of superimposing a character on video for display on a video screen comprising the steps of: providing a system capable of displaying a plurality of RGB pixel values on a video screen; designating a portion of the plurality of RGB pixel values to have special values; receiving video data having a first plurality of RGB pixel values for display on a video screen; superimposing a character on the video data to create a composite video having a second plurality of RGB pixel values for display on a video screen; determining if a first RGB pixel value from the second plurality of RGB pixel values is in the designated portion of the plurality of RGB pixel values; displaying the first RGB pixel value if the first RGB pixel value is not in the designated portion of the plurality of RGB pixel values; determining the special value for the first RGB pixel value if first the RGB pixel value is in the designated portion of the plurality of RGB pixel values; and displaying the determined special value for the first RGB pixel value.