Patent ID: 6570579
Filing Date: 2003-05-27
Classification: G06F,G06T,G09G,H04N

Abstract:
An integrated circuit comprising:an input for receiving video data; an input for receiving graphics data; a display engine for blending a plurality of graphics layers using alpha values; and a video compositor coupled to the display engine for blending the graphics data and video data using alpha values, and for providing a blended output of video and graphics, wherein the graphics data is spatially processed independently of the video data prior to blending, wherein the display engine blends a plurality of graphics images included in the graphics data into a blended graphics image and combines a plurality of alpha values into a plurality of composite alpha values, and the video compositor blends the blended graphics image with video included in the video data, and wherein the plurality of graphics images are blended one at a time using the plurality of alpha values to form the blended graphics image.