Patent ID: 6621499
Filing Date: 2003-09-16
Classification: G06F,G09G,H04N,Y10S

Abstract:
A video processing device comprising:a first unidirectional output switch selectable to output at least graphic data over a common port; a second unidirectional output switch, operatively coupled to a common set of signal paths of the common port, configurable to selectively output at least one of graphic and video data;: a first overlay image generator operatively coupled to the second unidirectional output switch wherein the overlay image generator receives graphics data from a graphics memory reader and video data from a video memory reader to facilitate output of overlayed graphics data and video data from the second unidirectional output switch; a second overlay generator operatively coupled to receive data from the frame buffer and operatively coupled to output second overlay information from a port different from a port associated with the port; and an input buffer, operatively coupled to a video capture engine and to the common port, that receives input video data to facilitate operation of the common port as a flexible bi-directional video data port.