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Touch-sensitive keyboard and control method thereof

A technology of touch sensing and keyboard, applied in the direction of electrical components, electronic switches, user/computer interaction input/output, etc., to achieve reasonable structure, realize large-area touch sensing input, and simplify connection complexity

Active Publication Date: 2012-11-14
G TECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the keyboard has little to do with the touchpad

Method used

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  • Touch-sensitive keyboard and control method thereof
  • Touch-sensitive keyboard and control method thereof
  • Touch-sensitive keyboard and control method thereof

Examples

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0039] The touch-sensitive keyboard of the present invention is used to accept user operations, convert the user operations into input signals, and transmit them to terminal devices such as personal computers, notebook computers, and ultrabooks.

[0040] see figure 1 and figure 2 , the touch-sensitive keyboard of the present invention is physically composed of a multi-layer structure, and sequentially includes a base 1, a matrix switch film 2, an upper cover 3, a capacitive sensing film layer 4, a protective film 5, and a preset keyboard A plurality of button devices arranged in a layout (not labeled), in addition, the touch-sensitive keyboard should also have the necessary control circuit parts of the known keyboard, such as the control unit 8 (see Figure 5), an optional wireless signal transceiver circuit , Sound and light warning circuit, etc.

[0041]...

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Abstract

The invention discloses a touch-sensitive keyboard which comprises a base, a matrix switch membrane and a plurality of key devices. The matrix switch membrane is arranged on the base according to the layout setting of the keyboard and consists of a plurality of switch elements, the key devices are positioned above the matrix switch membrane and are used for controlling on and off of the switch elements correspondingly after being stressed to ascend and descend, each key device comprises a press portion for being pressed by a user, and a capacitive sensing film layer is arranged between the press portion of each key device and the matrix switch membrane and used for sensing an external human body medium within the layout range of the keyboard. The keyboard is provided with a control unit used for identifying an on-off state of an optional switch element and detecting the position of the external human body medium in the layout of the keyboard by detecting change of current signals of the capacitive sensing film layer. The invention further provides a control method of the touch-sensitive keyboard. The touch-sensitive keyboard is small in occupied area, and a keyboard input function and a touch-sensitive input function are simultaneously realized on the same layout of the keyboard.

Description

【Technical field】 [0001] The invention relates to a keyboard, in particular to a touch-sensitive keyboard and a control method thereof. 【Background technique】 [0002] Capacitive touch sensing technology is a technology that determines the position of a human body (such as a finger) close to the sensor by detecting changes in the capacitance value of the human body to the touch sensor, and is widely used in handheld devices. For desktop devices, it is widely simply assembled on one side of the keyboard to complete text input and host control functions. [0003] On the one hand, due to the limitation of the size of the fingers, in order to achieve flexible and quick input, the area of ​​the keys on the keyboard cannot be infinitely reduced. On the other hand, in order to achieve a good operating experience, the touchpad integrated on one side of the keyboard requires a larger area. A keyboard with a touchpad designed to meet the above two user needs must have a large area. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/02H03K17/96
Inventor 黎柏松
Owner G TECH TECH
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