The object of the present invention is to provide a multichip IC card which seems to be a single chip IC card constituted by one chip and in which plural function chips are built. The multichip IC card is provided with a connector 3 for connecting to an interface processor 1, a master chip 4 ...http://www.google.de/patents/US5838059?utm_source=gb-gplus-sharePatent US5838059 - Multichip IC card and IC card system using it
