| 摘要 |
The present invention is to enable data communication between a portable terminal and a data communication device (reader terminal) using a simple method without using an IC chip for contactless communication. The data communication device includes: a memory, multiple photodetectors for detecting light in multiple regions on a touch screen of the portable terminal; a data generation unit for generating reception data based on the output of the multiple photodetectors and storing the reception data in the memory; an input device for performing touch input on the touch screen according to a control signal; and a control signal generation unit for generating the control signal for the input device. |
