Patent ID: 8659704

Claim:
An apparatus for mixing graphics from a general-purpose computer with video images from a video source, comprising: a first interface configured to receive graphics from the general-purpose computer, the graphics including a plurality of graphics frames composed of pixels that each have a color, the color of each pixel represented in a red, green, blue (RGB) color space, at least some graphics frames including one or more regions having pixels set to a repeating pattern of predetermined colors, the repeating pattern of predetermined colors defined by two or more nearby pixels where a first pixel has two or more of a red value, a green value, and a blue value that have a first relative difference and the first relative difference has a first particular less than or greater than relation to a first threshold, and a second pixel has two or more of a red value, a green value, and a blue value that have a second relative difference and the second relative difference has a second particular less than or greater than relation to a second threshold; a second interface configured to receive video images from the video source, each video image corresponding to one of the plurality of graphics frames; a video mixer including logic configured to recognize pixels in each of the at least some graphics frames that are set to the repeating pattern of predetermined colors, and in the one or more regions where the pixels are set to the repeating pattern of predetermined colors to mix pixels from the corresponding video image with the graphics frame, to create a mixed image; and one or more output interfaces to output mixed images.