Disclosed are a method and a system for detecting multiple, simultaneous touches on a touch-sensitive screen of a computing device. The hardware that controls the touch screen performs two measurements to locate a touch location on the screen. If there is a single touch, then the two measurements are...http://www.google.com/patents/US20040001048?utm_source=gb-gplus-sharePatent US20040001048 - Method and system for detecting multiple touches on a touch-sensitive screen
