Keying device and system

A key and light-emitting unit technology, applied in the field of electronics, can solve problems such as easy key failure, and achieve the effect of beautiful and novel appearance, stable and reliable work

Active Publication Date: 2011-06-22
KONKA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, buttons can be divided into two types: mechanical switch buttons and capacitive touch-sensitive buttons. The above two kinds of buttons need fingers or other objects to touch the button itself to operate, and when the buttons are used for a long time, they are easy to There is a key failure

Method used

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  • Keying device and system

Examples

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Embodiment Construction

[0018] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] see figure 1 , is a schematic block diagram of the first embodiment of the key device of the present invention. The key device includes a key action detection unit (not marked) and a control unit 20 . The key action detection unit can detect the human hand or object located in the key area through the light pulse signal, and the control unit 20 is used to judge whether the key is pressed according to the detection of the human hand or object. The key action detection unit includes a light emitting unit 10 and a light sensor 30 . The light emitting unit 10 and the light sensor 30 are respectively connected to the control circuit 20 . The light emitting unit 10 is used to emit light under the control of the control unit 20 , and the light sensor 30 is used to receive the light emitted by the light emitting unit 10 and send a corresponding ele...

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PUM

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Abstract

The invention provides a keying device comprising a keying action detection unit and a control unit. Hands or objects in a keying area can be detected by the keying action detection unit through a light pulse signal, and the control unit is used for judging whether a key is in a press-down state according to the detection of hands or objects. The invention also provides a keying system. Through the keying device and system provided by the invention, contact-free keying; and the keying device and system have the advantages of operation stability and reliability and attractive and novel appearance.

Description

technical field [0001] The invention belongs to the field of electronics, and in particular relates to a key device and a system thereof for detecting key actions by using light pulses. Background technique [0002] With the development of electronic technology, various electronic products have been used more and more widely in people's daily life. Common electronic products, such as mobile phones, notebook computers, liquid crystal displays, telephones, etc., all include button parts, and users operate and control electronic products through button actions. Generally speaking, buttons can be divided into two types: mechanical switch buttons and capacitive touch-sensitive buttons. The above two kinds of buttons need fingers or other objects to touch the button itself to operate, and when the buttons are used for a long time, they are easy to A key failure has occurred. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, it ...

Claims

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Application Information

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IPC IPC(8): H03K17/96
Inventor 邹楠
Owner KONKA GROUP
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