A method and apparatus for wireless cursor position control is disclosed herein. The apparatus comprises a wireless cursor position device and a separate control base whereby the direction and velocity of motion of the position device is monitored by the control base and used said direction and velocity...http://www.google.fr/patents/US4578674?utm_source=gb-gplus-shareBrevet US4578674 - Method and apparatus for wireless cursor position control
Method and apparatus for wireless cursor position control