A communication system (20) is provided with multiple purpose personal communication devices (50 and 150). Each communication device (50 and 150) includes a touch-sensitive visual display (60 and 160) to communicate text and graphic information to and from the user and for operating the communication...http://www.google.fr/patents/US5465401?utm_source=gb-gplus-shareBrevet US5465401 - Communication system and methods for enhanced information transfer
Communication system and methods for enhanced information transfer
