Patent ID: 7061509
Filing Date: 2006-06-13
Classification: G09G,H04N

Abstract:
1. A method for inserting video data from a TV card into a computer display image of a computer system, said method comprising the steps of: transferring key area parameters defining a size and a position of a window in the computer display image; generating a color key; generating, in a graphics card, responsive to the key area parameters, an imbedded color key area on the window in the computer display image for displaying the input video image; generating a color key signal which has a first value when picture elements in the key area are being sent to the display in the key area and a second value otherwise; transferring at least one synchronizing signal from the TV card to the graphics card to synchronize the TV card and the graphics card with each other; providing, responsive to the color key signal having the first value, the video data from the TV card to a computer monitor; and providing, responsive to the color key signal having the second value, the computer display screen images to the computer monitor.