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Touch recognition method, device, spatial mouse and control method thereof

A space mouse and identification method technology, applied in the direction of instruments, electrical digital data processing, electrical components, etc., can solve the problems of touch operation errors, affecting users' use, unable to identify which button belongs to, to prevent jitter and improve operating experience , to avoid the effect of false triggering

Active Publication Date: 2012-06-13
JIANGSU HUITONG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the existing capacitive touch key system, if the panel material is made of metal material or the panel material contains metal components, any touch on the panel will trigger the key, which makes it impossible to identify which key a certain trigger belongs to. , which will cause touch operation errors and affect the user's use

Method used

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  • Touch recognition method, device, spatial mouse and control method thereof
  • Touch recognition method, device, spatial mouse and control method thereof
  • Touch recognition method, device, spatial mouse and control method thereof

Examples

Experimental program
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Embodiment 1

[0045] figure 1 It is a schematic flowchart of the touch recognition method provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the touch recognition method includes:

[0046] Step S101, when the touch button structure is facing a touch or near touch, record the number of charge transfer times of each electrode when the voltage corresponding to the total amount of charge transferred from each electrode of the touch button structure reaches a reference voltage;

[0047] Step S102, collect the charge transfer times of each electrode when the voltage corresponding to the total amount of charge transferred on each electrode reaches the reference voltage every predetermined period, as the charge of the button corresponding to the electrode when the touch button structure is facing touch or near touch sample value;

[0048] Step S103 , identifying the keys whose charge sample values ​​collected for a first preset number of predetermined periods in succes...

Embodiment 2

[0086] The difference between this embodiment and Embodiment 1 is that the touch sensing threshold in the touch recognition method in Embodiment 1 is set according to the actual situation, and generally can be set as a fixed value, while in this embodiment, the touch The sensing threshold is related to the long-term average (LTA, Long Term Average) of the charge sample value within the first preset time period. The long-term average value refers to the average value of charge sample values ​​of multiple predetermined periods sampled within a period of time.

[0087] As described in Embodiment 1, after the charge sample value is sampled, the keys whose charge sample values ​​are all smaller than the touch sensing threshold within a first preset number of consecutive predetermined periods are identified as touched keys. However, in different environments, all aspects are very complicated, and what the capacitive touch device detects is not always related to the user touching the...

Embodiment 3

[0095] Compared with the foregoing first or second embodiment, this embodiment also includes a determination of triggering a proximity sensing event. As described in Embodiment 1, when each electrode in the touch key structure generates a source electric field after charging, the source electric field is an electrostatic field, and forms a charge accumulation area on the surface of each electrode, the triggering of the touch sensing event is due to When a metal button is touched, the electric field distribution will change, which will cause the transfer of charges in the charge accumulation area, so that the charge amount in the charge accumulation area will change, and once a severe charge occurs in the charge accumulation area of ​​a certain electrode If the amount changes, it can generally be considered that a touch operation has occurred on the key corresponding to the electrode. Specifically, the charge sample value of the charge accumulation area corresponding to the key...

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Abstract

Disclosed are a touch recognition method, a device, a spatial mouse and a control method thereof. The touch recognition method includes steps of recording the charge transfer frequencies of various electrodes when a touch button structure is pressed or is about to be pressed and voltage corresponding to total quantities of charge transferred from the electrodes of the touch button structure reaches reference voltage; sampling the charge transfer frequencies of the electrodes when the voltage corresponding to the total quantities of the charge transferred from the electrodes reaches the reference voltage at predetermined intervals, and adopting the charge transfer frequencies as charge sample values of buttons corresponding to the electrodes when the touch button structure is pressed or is about to be pressed; and recognizing a button as a touched button when charge sample values, which are continuously acquired within a first predetermined number of periods, of the button are smaller than a touch sensitive threshold value. By the aid of the technical scheme of the touch recognition method, the device, the spatial mouse and the control method, touch recognition accuracy can be improved, and false triggering of the buttons can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of touch sensing, in particular to a touch recognition method and device, a space mouse and a control method thereof. Background technique [0002] Currently, common mouse devices on the market are divided into two types according to their operating principles, one is a roller mouse, and the other is an optical mouse. Among them, the rolling ball mouse is to control the pointing position of the mouse pointer (cursor or cursor) displayed in the computer system by converting the moving direction and path of the rolling ball on the placed desktop or plane; Control the reflection caused by the light on the table or plane. For the positioning of the mouse pointer of an optical mouse, most of them rely on optical sensors or laser sensors. These sensors are all based on the principle of physical optics, so that the sensors need to be realized by platforms such as desktops. In addition, in many occasions, such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033H03K17/975G06F3/0354
CPCH03K17/96H03K17/9622H03K2217/960725G06F3/044
Inventor 龙涛刘正东龙江唐元浩严松
Owner JIANGSU HUITONG GRP
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