Datenträger zum Speichern von Werteinheiten, Aufbuchstation und Abbuchstation für Werteinheiten sowie entsprechende Verfahren zum Aufbuchen und Abbuchen

摘要

The invention relates to a data carrier (CC) for storing units of value (VALUE) credited by a credit station (T1) and debited in at least one debit station (T2). Upon completion of the crediting procedure, the data carrier contains an identification number (T1ID) of the crediting station (T1) which is transmitted to the debiting station (T2) when the unit of value (VALUE) is debited. The debiting station (T2) uses the identification number (T1ID) to check if the units of value (VALUE) have been credited by an authorized crediting station (T1).