Systems and methods according to the present invention address these needs and others by providing a 3D pointing device and methods for 3D pointing which provide accurate translation of movement of the 3D pointing device into user interface commands, e.g., cursor movement. According to exemplary embodiments...http://www.google.de/patents/US7489299?utm_source=gb-gplus-sharePatent US7489299 - User interface devices and methods employing accelerometers
