| 摘要 |
An electronic payment terminal for a card transaction system has a portable terminal and a communication module. The portable terminal includes an IC card interface 102, an MS card reader 104, a keypad interface 106, a display 126, a serial communication controller 122, a backup charging controller 120, a communication module interface, a memory 108, and a central processing unit, 110. The communication module includes a DC power supply 160, a serial communication controller 164, a modem 152, a terminal interface, a memory 156, and a central processing unit, 174. The terminal and communication module may be connected by wire or radio, and the modem 152 may be connected with a value added network (VAN) or a public switched telephone network (PSTN). |
