| 摘要 |
<p>The invention relates to a modular chip card system with function modules which, either separately or in a combination of functions, are accommodated in standardized chip cards with contacts. The required electrical connections between the basic chip card, which for example comprises an electronic purse, and one or more function modules are effected through the stacking of these modules, by means of electric contacts provided on two sides in the modules at positions corresponding with the electric contacts of the basic chip card. Possible function modules are, for example, a user interface, a battery module, standardized or non-standardized wireless interface modules, tone modulation modem module, and data logger module. <IMAGE> <IMAGE></p> |
