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1. 发明公开

EP3128490A1 A SECURITY SHIELD FOR A DATA ENTRY KEYPAD 审中-公开
标题翻译： SICHERHEITSABSCHIRMUNGFÜRDATENEINGABETASTATUR
公开(公告)号：EP3128490A1
公开(公告)日：2017-02-08
申请号：EP15180144.6
申请日：2015-08-07
申请人： Coraza Holdings Limited
发明人： O'REILLY, Dave
IPC分类号： G07F19/00 , G07F7/10 , H03K3/0231
CPC分类号： G07F19/205 , G07F7/1033 , G07F19/209
摘要： A PIN shield 14 for a PIN pad 10 set into a fascia 12 comprises one or more components 14a, 14b, 14c which restrict a full view of the keypad to a person located directly in front of the keypad. At least one shield component has embedded therein a mesh 16 (Figures 2 and 3) comprising an electrical conductor extending continuously between input and output contacts 18b on the component. A microcontroller is connected to the input and output contacts 18b to detect if the value of the mesh resistance falls outside a predetermined range. In a second embodiment (Figure 6), at least one shield component has a capacitive element closely associated therewith whose capacitance value is influenced by the presence of the shield. A microcontroller is connected to the capacitive element to detect changes in its capacitance value.
摘要翻译：用于设置在面板12中的PIN垫10的PIN屏蔽14包括一个或多个部件14a，14b，14c，其将键盘的全视图限制在直接位于键盘前面的人。至少一个屏蔽部件已经嵌入其中，网格16（图2和图3）包括在部件上的输入和输出触点18b之间连续延伸的电导体。微控制器连接到输入和输出触点18b以检测网格电阻的值是否落在预定范围之外。在第二实施例（图6）中，至少一个屏蔽部件具有与其紧密相关的电容元件，其电容值受屏蔽件的存在的影响。微控制器连接到电容元件以检测其电容值的变化。

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