Patent ID: 7997480
Filing Date: 2011-08-16
Classification: G06K,H04B

Abstract:
1. A data communication system for executing a data communication among an IC card function execution unit having a memory, a card reading/writing device capable of communicating with the IC card function execution unit through a contactless interface, and an information processing terminal capable of communicating with the IC card function execution unit through a wired interface by interposing the IC card function execution unit, the data communication system comprising: first communication means for causing the card reading/writing device to execute a data transfer operation to the memory in the IC card function execution unit through the contactless interface or causing the information processing terminal to execute a data transfer operation to the memory in the IC card function execution unit through the wired interface; second communication means for executing a data transfer between the card reading/writing device and the information processing terminal on a communication path composed of the contactless interface and the wired interface through the IC card function execution unit interposed therebetween, the information processing terminal having a data transfer state for permitting a data transfer to the IC card function execution unit through the wired interface and a data not transfer state for not permitting a data transfer to the IC card function execution unit through the wired interface, wherein the first communication means executes a data transfer operation in the data not transfer state and the second communication means executes a data transfer operation in the data transfer state; and communication control means for executing a communication operation using any of the first or second communication means.