Patent ID: 7034777

Claim:
A monitor system comprising: a host computer; a first monitor connected to said host computer; a second monitor, separate and unattached to said first monitor and smaller than said first monitor and coupled to said computer via a shared peripheral bus interface; a first memory configured to store image information transmitted to said second monitor; a second memory configured to store image information to be transmitted to said second monitor; and a video driver in said host computer for providing a portion of a display on said first monitor to said second monitor, said video driver being operable to compare said first and second memories to determine whether or not a first portion of an image displayed on said second monitor is to be modified and a second portion of said image displayed on said second monitor is to be left unmodified, wherein image data corresponding to said first portion of said image are transmitted to said second monitor and image data corresponding to said second portion of said image are not transmitted to said second monitor.