A method and system that monitors movement of a wheel or slider included on a keyboard, and conveys information indicative of the movement and its direction to a host computing device to which the keyboard is coupled, using predefined scan codes or Universal Serial Bus (USB) data signal. State changes...http://www.google.fr/patents/US6686904?utm_source=gb-gplus-shareBrevet US6686904 - Wheel reporting method for a personal computer keyboard interface
Wheel reporting method for a personal computer keyboard interface
