Patent ID: 6707505
Filing Date: 2004-03-16
Classification: G09G,H04N

Abstract:
A single chip system for combining digital video and graphics streams of data for display on a television output display comprising:a first input channel for receiving digital video input data, a second input channel for receiving computer graphics data, means for synchronizing the two channels to one another comprising: means for utilizing a timing signal to determine horizontal and vertical synchronization intervals for each of the channels, and means for locking the horizontal and vertical signals for each channel together, means for adjusting the format in which the computer graphics signals are presented to the same format as the format in which the video signals are presented comprising: means for equalizing the difference between horizontal lines in a frame of computer graphics display, and means for dividing each frame of the computer graphics signals into a pair of successive frames, and means for selectively blending the adjusted computer graphics and unmodified video signals furnished as video input data for presentation on a single output display.