System with IC card deactivation
    2.
    发明授权
    System with IC card deactivation 有权
    具有IC卡停用功能的系统

    公开(公告)号:US07050830B2

    公开(公告)日:2006-05-23

    申请号:US10119606

    申请日:2002-04-10

    CPC分类号: G06K7/0008

    摘要: The device, and a respective system, comprises a microcontroller for signal processing and an interface controller for communicating with an IC card, the interface controller being coupled between the microcontroller and the IC card. According to the invention, the device comprises a reset button for resetting the microcontroller in case of a malfunction, the reset button being accessible to a customer, and a reset signal from the reset button simulates an IC card extraction or a card supply voltage shut down. In a special embodiment, the reset signal from the reset button is applied to the microcontroller and to the interface controller, and the signal from the reset button resetting the microcontroller is delayed by a delay circuit with respect to the signal, which resets the interface controller. The signal from the reset button is advantageously combined with the signal from a card presence contact via a logical OR-combination, and then coupled to a card presence input of the interface controller.

    摘要翻译: 该装置和相应的系统包括用于信号处理的微控制器和用于与IC卡通信的接口控制器,该接口控制器耦合在微控制器和IC卡之间。 根据本发明,该装置包括用于在发生故障的情况下复位微控制器的复位按钮,复位按钮可由客户访问,并且来自复位按钮的复位信号模拟IC卡提取或卡供电电压关闭 。 在特殊实施例中,来自复位按钮的复位信号被施加到微控制器和接口控制器,并且复位微控制器的复位按钮的信号被延迟相对于信号的延迟电路,该信号使接口控制器 。 来自复位按钮的信号有利地通过逻辑OR组合与来自卡存在联系的信号组合,然后耦合到接口控制器的卡存在输入。