Patent ID: 7336287
Filing Date: 2008-02-26
Classification: G09G,H04N

Abstract:
1. A video and graphics system comprising: a first input for receiving a graphics image comprising graphics pixels, the graphics pixels having square pixel aspect ratio; a second input for receiving a video image comprising video pixels, the video pixels having non-square pixel aspect ratio, the video image having a larger number of pixels per scan line than the graphics image; a sample rate converter for converting sample rate of the graphics image so that the number of graphics pixels per scan line of the graphics image becomes greater than or equal to the number of video pixels per scan line of the video image; and a video compositor for blending the graphics image with the video image, wherein the graphics image is scaled horizontally so that the graphics image can be overlaid on the full width of the video image, and the square pixel aspect ratio of the graphics pixels is maintained.