Abstract: The present invention provides a card type recording medium such as an IC card, which contains storage units to store data and an access control unit to control an access to the data by an access subject. The access control unit is designed to include an access subject identification information generating unit to generate an access subject identification information for identifying the access subject, an access authority information read-in unit to read in access authority information set in correspondence with the data that the access subject requests to access, and a control unit to obtain an access authority from the access subject identification information and the access authority information, and to control an access to the data by the access subject on the basis of the access authority obtained. Thereby, the card type recording medium intends to simplify the setting and modifying work of an access authority, and to reliably perform the management and operation of a security system.

Abstract: A system for automatically collecting charges in accordance with individual consumptions of a source from one or more users, the system including one or more user's mediums, provided one for each of the users, for storing electronic money, a source consumption monitor for monitoring the source consumptions for the individual users and a charge collector for collecting the charges in accordance with the individual source consumptions, which are monitored by the source consumption monitor, from the respective user's mediums as corresponding equivalent amounts of electronic money. With this system capable of automatically collecting a charge, a charge in accordance with source consumption is automatically collected.

Abstract: The present invention provides a card type recording medium such as an IC card, which contains storage units to store data and an access control unit to control an access to the data by an access subject. The access control unit is designed to include an access subject identification information generating unit to generate an access subject identification information for identifying the access subject, an access authority information read-in unit to read in access authority information set in correspondence with the data that the access subject requests to access, and a control unit to obtain an access authority from the access subject identification information and the access authority information, and to control an access to the data by the access subject on the basis of the access authority obtained. Thereby, the card type recording medium intends to simplify the setting and modifying work of an access authority, and to reliably perform the management and operation of a security system.