| 摘要 |
The purpose of the present invention is to enable data communication between a portable terminal and a data communication device (reader terminal) using a simple method and without using an IC chip for contactless communication. In the present invention, a data communication device is provided with the following: a memory; a plurality of photodetectors detecting light in a plurality of regions on a touch screen of a portable terminal; a data generation unit for generating reception data on the basis of the output of the plurality of photodetectors, and storing such data in the memory; an input device for carrying out touch input via the touch screen in accordance with a control signal; and a control signal generation unit for generating the control signal for the input device. |
