| 摘要 |
PURPOSE: A selective payment transaction system is provided to automatically recognizing the payment performance target when simultaneously connecting plural payment units to a terminal. CONSTITUTION: A terminal(200) performs payment by selecting the most lately used payment unit among plural payment units(100). The payment units includes a first payment unit(110), a second payment unit(120) and a third payment unit(130). The terminal includes: a recognizer which recognizes the payment unit; and a selector which selects each payment unit when recognizing plural payment unit. If the selected payment units cannot be used, the terminal selects another payment unit which is most lately used. |
