A display device is provided for selecting a plurality of selectable symbols on an electronic display. The display device comprises an electronic display that displays a plurality of selectable symbols, a user input control device, and a processor coupled to the electronic display and the user input...http://www.google.com.mx/patents/US8166419?utm_source=gb-gplus-sharePatent US8166419 - Apparatus and method for navigating amongst a plurality of symbols on a display device