发明名称 Security keyboard
摘要 The invention relates to a console (1) and a safety console (101) having dual-stage functionality. The console (1) has a key (21) and a contact plate (41). According to one exemplary embodiment, the key (21) has a dual-stage safety shutdown mat (23) on which electrically conductive layers (25, 27) are located. The contact plate (41) has two contact arrangements having electrically conductive safety contact elements (43, 45) and key contact elements (47, 49). The console (1) is configured to connect the electrically conductive safety contact elements (43, 45) by means of the safety contact layer (25) in an inactive state, thus continuously monitoring the presence and active contact state of the key (21) via a safety switch (37). In an active state, the key (1) is configured to also connect the key contact elements (47, 49) via the key contact layer (27) on the safety shutdown mat (23) such that the activation can be registered by an evaluation circuit (53).
申请公布号 US8325067(B2) 申请公布日期 2012.12.04
申请号 US20080675268 申请日期 2008.08.28
申请人 MOELLER OTTMAR;OSTERMOELLER MICHAEL;IDE TORSTEN;WAHL THOMAS;VERIFONE GMBH 发明人 MOELLER OTTMAR;OSTERMOELLER MICHAEL;IDE TORSTEN;WAHL THOMAS
分类号 G06F3/02;G06F21/83 主分类号 G06F3/02
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