Patent ID: 6728686
Filing Date: 2004-04-27
Classification: G06Q,G07F

Abstract:
In a system including a device attachable with an IC card storing electronic money, and including electronic money transaction management apparatuses for an electronic money supplier and an electronic money payee, the device being connected to the electronic money transaction management apparatuses via a network, a method of automatically paying electronic money from the device to the electronic money transaction managing apparatus of the payee via the network, comprising:reading payment data of an electronic money transaction from the IC card; obtaining a payment amount from the payment data having a payment due date indicating that payment should presently be made; obtaining a balance of the electronic money in the IC card; comparing the payment amount with the balance; if the payment amount is larger than the balance, receiving additional electronic money, which amount corresponds to a difference between the payment amount and the balance, from the electronic money transaction management apparatus of the electronic money supplier; and sending the electronic money corresponding to the payment amount to the electronic money transaction management apparatus of the payee.