Abstract: An IC card adaptor having a wireless communication function and/or an optical communication function enabling a contact-type IC card to be used as an IC card of a non-contact type. The adaptor includes a power supply, a communication processing section, a transmission/reception section, and a device for establishing a contact-point coupling with an IC card developing at least a portion of a function to read data from the card and to write data therein through a contact-type contact point. An automatic roadway toll charging system employs such an IC card and IC card adaptor, as well as a card reader unit, a license plate identification unit, a comparison/collation unit, and a fee calculation unit to verify proper vehicle passage onto a roadway and calculate a required fee. A vehicle security system is disclosed which verifies proper vehicle passage into a security area.