DYNAMIC TEXT INPUT USING ON AND ABOVE SURFACE SENSING OF HANDS AND FINGERS

摘要

A virtual keyboard is displayed on a touch screen display surface of a computing device. Partial images of the keyboard are displayed, where a partial image may be one key, referred to as the most probable key that the user will touch, or a group of keys, which may include some less probable or surrounding keys that may be touched. Sensors under or near the display surface detect an outline of the user hands and determines which finger is the fastest moving finger, which is presumed to be the finger used to touch a key. The most probable key is determined based on the fastest moving finger and may be displayed before the finger touches the surface. If the most probable key is not touched, a user profile containing user typing habits may be updated to reflect that a less probable key was touched.