The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2015
Filed:
Oct. 31, 2012
Pax Computer Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
PAX Computer Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Abstract
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.