Patent ID: 6327002
Filing Date: 2001-12-04
Classification: G09G,H04N

Abstract:
A video system in a computer system comprises:a video decoder operably coupled to receive at least one input video signal to the computer system, wherein the video decoder includes:an analog to digital conversion module for converting the at least one input video signal into a digital video signal;comb filter operably coupled to the analog to digital conversion module, wherein the comb filter receives the digital video signal and produces therefrom a Y-component digital signal and a C-component digital signal;a digital to analog module;a graphics controller; andoutput control module operably coupled to the video decoder and the digital to analog module, wherein the video decoder, based on an output command, bypasses the graphics controller and provides the Y-component digital signal and the C-component digital signal to the output control module, wherein the output control module based on the output command, provides the Y-component digital signal and the C-component digital signal to the digital to analog module, and wherein the digital to analog module produces a composite video output and an S-video output from the Y-component digital signal and the C-component digital signal.