A video entertainment system adapter unit is provided for use on a video entertainment system, such as video game machines, to increase the processing power and complexity of the video images. The adapter unit includes at least a computer for generating image data and a video display processor...http://www.google.ca/patents/US5692162?utm_source=gb-gplus-sharePatent US5692162 - Video entertainment system adapter and image display method of a video entertainment system using a video entertainment system adapter 
