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Keyboard safe protecting device and method of payment terminal

A technology of a security protection device and a payment terminal, applied in the field of electronic equipment, can solve problems such as the protection mechanism that cannot realize cross interlocking, and achieve the effect of improving the security protection level of the keyboard and the security of the equipment

Active Publication Date: 2014-03-05
FUJIAN XINO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device cannot realize the protection mechanism of cross-interlocking of safety detection signals involved in this patent application document.

Method used

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  • Keyboard safe protecting device and method of payment terminal
  • Keyboard safe protecting device and method of payment terminal
  • Keyboard safe protecting device and method of payment terminal

Examples

Experimental program
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Embodiment Construction

[0026] see Figure 1 to Figure 5 As shown, a keyboard safety protection device of a payment terminal of the present invention, the device includes a keyboard PCB board, a security processor, button rubber and metal pin FPC protective film; the security processor is connected to the keyboard PCB board;

[0027] There are at least two groups of cross-arranged safety network detection contacts (such as figure 1 As shown, the two groups are (101, 103) and (111, 113); (102, 104) and (112, 114) cross-arranged), and the safety network detection contacts of each group include at least two safety network detection input contacts and corresponding two Safety net sense output contacts (eg figure 1As shown, the two safety network detection input contacts of (101,103) and (111,113) are 101 and 103, and the two safety network detection output contacts are 111 and 113; the two safety network detection output contacts of (102,104) and (112,114) The first safety network detection input conta...

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Abstract

The invention provides a keyboard safe protecting method of a payment terminal. Two sets of independent safe network detection signals are output through a safe processor of the payment terminal in a driving mode, the signals pass through two sets of safe network detection contacts on the periphery of a keyboard PCB, two sets of the same corresponding safe network detection contacts on a dome FPC protecting film and two layers of corresponding network cables, and constitute an access through extrusion of a limiting column in a matched mode, the two sets of safe network detection contacts on the periphery of the keyboard PCB are arranged in a crossed mode, and the two sets of the same corresponding safe network detection contacts on the dome FPC protecting film are arranged in a crossed mode, the detection signals are fed back to a safe detection input circuit of the safe processor, and therefore safety of a keyboard is guaranteed through cross interlocking of the safe detection signals. The invention further provides a keyboard safe protecting device of the payment terminal, a safe protection mechanism of cross interlocking can be achieved, equipment is safer by means of safe network detection and safe switch detection, and the keyboard safe protection grade of the payment terminal is improved.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a keyboard security protection device and method for a payment terminal. Background technique [0002] Nowadays, POS machines, password keyboards, ATM machines and other electronic equipment in the financial field use the keyboard as part of the input data information, which inputs or stores some highly sensitive data information. With the rapid development of science and technology, there are more and more application fields of financial terminal products. Therefore, the security requirements for these electronic devices are getting higher and higher. In order to prevent electronic devices from being tampered with and anti-theft, financial payment terminals must be designed with security protection. Through the cooperation of the shell and the safety protection circuit, the protection of the payment terminal is realized, and important information such as passwords a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/78
Inventor 林毅峰彭慧娟
Owner FUJIAN XINO COMM TECH
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