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    • 33. 发明申请
    • ENCRYPTION KEYPAD CAPABLE OF PREVENTING ILLEGAL DISASSEMBLY
    • 加密键盘可防止非法拆卸
    • US20130160149A1
    • 2013-06-20
    • US13810415
    • 2011-07-22
    • Junkun ZhangZhulong LinJing HeYing Han
    • Junkun ZhangZhulong LinJing HeYing Han
    • G06F21/83
    • G06F21/83G06F21/86G06F2221/2101G06F2221/2107G09C1/00
    • An enhanced encryption keypad (100) capable of preventing illegal disassembly for an automated teller machine comprises a key panel (101) and a main control board (102). A removal detection protection circuit is disposed inside a main chip of the main control board (102), and at least one pin of the removal detection protection circuit is guided out from a surface (1021) of a side of the main control board (102) near the key panel to form a removal detection point (1022). The removal detection point (1022) has two opened signal contact points. The two opened signal contact points are conducted by a conductive adhesive (103) to activate the removal detection protection circuit. A conductive protection ring (1023) isolated from the removal detection point is disposed at the periphery of the removal detection point. The conductive protection ring (1023) is connected to the removal detection protection circuit inside the main control chip. A protection circle (1024) is disposed at the periphery of the conductive protection ring and the corresponding conductive adhesive. The present application effectively protects the encryption keypad from illegal attacks on the removal detection point from the side.
    • 能够防止自动柜员机非法拆卸的增强型加密键盘(100)包括键盘(101)和主控板(102)。 移除检测保护电路设置在主控板(102)的主芯片的内侧,移除检测保护电路的至少一个引脚从主控板(102)的一侧的表面(1021)被引出 ),以形成移除检测点(1022)。 移除检测点(1022)具有两个打开的信号接触点。 两个打开的信号接触点由导电粘合剂(103)进行以激活去除检测保护电路。 从去除检测点隔离的导电保护环(1023)设置在移除检测点的周围。 导电保护环(1023)连接到主控芯片内部的去除检测保护电路。 保护圈(1024)设置在导电保护环的周边和相应的导电粘合剂上。 本应用有效地保护加密小键盘免受从侧面的去除检测点的非法攻击。