Patent ID: 7720717
Filing Date: 2010-05-18
Classification: G06Q,G07F,H04M

Abstract:
1. A mobile terminal device having an Internet access function for access to the Internet to communicate the mobile terminal device with an electronic money server providing electronic money service, the mobile terminal device comprising: information processing means for processing electronic information including money information; storing means for storing the electronic information including the money information; receiving means for receiving from the electronic money server secret information and an electronic money identification (ID); means for downloading from the electronic money server a money information processing program using the received secret information and electronic money ID for enabling the information processing means to execute processing of the money information stored in the storing means; installing means for installing into the storing means the money information processing program downloaded from the electronic money server and the electronic money ID and the secret information received by the receiving means while the mobile terminal device communicates only with the electronic money server; sending means for sending to the electronic money server information necessary for enabling the electronic money server to provide electronic money service, the necessary information corresponding to the electronic money ID and being sent to the electronic server by the sending means before the money information processing program is downloaded from the electronic money server and the receiving means receives the electronic money ID and the secret information from the electronic money server; and a log data storing unit for storing a history of electronic information processed by the information processing means; wherein while the mobile terminal device communicates with the electronic money server or an electronic terminal device, the money information processing program enables the information processing means to perform a money-amount information receiving function for receiving from the electronic money server or the electronic terminal device information corresponding to a change in an amount of money corresponding to the money information stared by the storing means by using the secret information installed in the storing means, to perform a money information processing function for changing the amount of money in accordance with the received information corresponding to the change in the amount of money, and to perform a history information recording function for recording the history of electronic information processed by the information processing means and stored in the log data storing unit; wherein the installing means generates the log data storing unit in the storing means when the installing means installs into the storing means the money information processing program, the electronic money ID, and the secret information; wherein the information processing means and the storing means comprise at least one IC chip; wherein the necessary information sent by the sending means to the electronic money server comprises information identifying the IC chip; and wherein the receiving means receives the electronic money ID from the electronic money server after the electronic money server receives the information identifying the IC chip.