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US 2014/0118971 A1Published application
Keyboard safety protection device
AssigneePax Computer Technology (Shenzhen) Co., Ltd.
InventorsBo Zhu, Shuxian Shi, Yuzhuo Wang
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AssigneePax Computer Technology (Shenzhen) Co., Ltd.
InventorsBo Zhu, Shuxian Shi, Yuzhuo Wang
Estimating the term…
A keyboard safety protection device for protecting a point of sale (POS) device keyboard area from being attacked includes: a protection layer, a metal dome, and a keyboard printed circuit board, wherein a key gold finger and a safety processor are arranged on the keyboard PCB, the protection layer is composed of a layer of PVDF film and a first and second silver slurries, the first and the second silver slurries are coated on the surface of the PVDF film, the surfaces of the first and second silver slurries are provided with a first and second thin film layers respectively, the first and second silver slurries are electrically connected with the key gold finger, and the first and second silver slurries are electrically connected with the safety processor to form a safety detection circuit through the keyboard printed circuit board and the safety processor.
A keyboard safety protection device comprising a protection layer (1), a metal dome (2), a keyboard printed circuit board (3), wherein a key gold finger (4) and a safety processor (5) are arranged on the keyboard printed circuit board (3), the protection layer (1) is composed of a layer of PVDF film (11) and a first and second silver slurries (12, 13), the first and second silver slurries (12, 13) are coated on the surface of the PVDF film (11), the surfaces of the first and second silver slurries (12, 13) are provided with a first and second thin film layers (14, 15) respectively, the first and second silver slurries (12, 13) are electrically connected with the key gold finger (4), and the first and second silver slurries (12, 13) are electrically connected with the safety processor (5) through the keyboard printed circuit board to form a safety detection circuit.
Dependencies are inferred from the claim text.