Methods for recognizing gestures made by a conductive object on a touch-sensor pad and for cursor motion are disclosed. Tapping, drags, pushes, extended drags and variable drags gestures are recognized by analyzing the position, pressure, and movement of the conductive object on the sensor pad during...http://www.google.de/patents/US6028271?utm_source=gb-gplus-sharePatent US6028271 - Object position detector with edge motion feature and gesture recognition
