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Keyboard

A keyboard and key value technology, applied in the field of human-machine input devices, can solve problems such as inconvenience, and achieve the effect of reducing hardware costs and facilitating use

Inactive Publication Date: 2007-04-18
北京天一集成科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The general design of the main board of the current product application terminal needs to use the computer keyboard with PS / 2 interface, and the output is plain code; while the design on the POS board needs the output interface to be a password keyboard with a serial port; however, the general product application terminal is in the shape structure There is only one keyboard position, if two keyboards are set for it, it will cause great inconvenience

Method used

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Embodiment Construction

[0025] A specific embodiment of a keyboard according to the present invention is shown in FIG. 1 : it includes two or more output interfaces, which can be connected to product application terminals with different interfaces. The output interface generally includes PS / 2 interface, USB interface, parallel port and / or serial port. According to the output key value, it can be divided into password key value output interface and plain code key value output interface. The password key value output interface is used to output encrypted password key value; the plain code key value output interface is used to output unencrypted plain code key. value. Of course, both the password key value output interface and the plaintext key value output interface can use PS / 2 interface, USB interface, parallel port and / or serial port.

[0026] In order to make the keyboard switch between different interfaces during work, a switch control module is also provided, which is used to switch between diff...

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Abstract

The invention supplies key board. It includes two or more output interfaces which can be connected with product application terminal with different interfaces. The outputted key assignments can be cryptographic and plain code ones to realize one key board has double output functions, which is convenient for user's using. The corresponding function uses software to realize. This can reduce hardware cost.

Description

technical field [0001] The invention relates to a human-machine input device, in particular to a keyboard. Background technique [0002] The keyboard is a peripheral device commonly used in people's daily work and life, and it has a wide range of uses, including computers, industrial computers, telephones, and POS machines. At the same time, there are many types of keyboards, which can be divided into standard 101 keyboards, 105 keyboards and 108 keyboards according to the model, as well as portable keyboards for computer notebooks; according to applications, they can be divided into computer keyboards, industrial computer keyboards and password keyboard, etc.; because the general industrial computer can also be considered as a computer, the keyboard can be roughly divided into two categories: computer keyboard and password keyboard. [0003] The output interface that common computer keyboard adopts is PS / 2 interface, also has and adopts USB interface; The key value of its ...

Claims

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Application Information

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IPC IPC(8): G06F3/02G06F3/00
Inventor 王晓东李晓辉董保良
Owner 北京天一集成科技有限公司