A keypad used for dialing telephone numbers to establish a communications link is also used to display game moves. Once the communications link is established between two or more parties, their terminals are placed in a game mode which activates inband signal detection and player identification circuitry...http://www.google.es/patents/US20020142840?utm_source=gb-gplus-sharePatente US20020142840 - Keypad for dialing telephone numbers and displaying game moves
Keypad for dialing telephone numbers and displaying game moves
Número de solicitud: 10/143,350 Número de publicación: US 2002/0142840 A1 Fecha de presentación: 10 May 2002 Patente emitida: US6682427 ( Fecha de emisión 27 Ene 2004)