Method and system for automatically calibrating sensitivity of touch detection, and touch control terminal

An automatic calibration and touch detection technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of sensitivity deviation, signal deviation, affecting the accuracy and linearity of the detection output position, etc., to achieve The effect of guaranteed accuracy and linearity

Active Publication Date: 2010-06-23
SHENZHEN GOODIX TECH CO LTD
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Problems solved by technology

In actual production, due to the inconsistency of the sensor and the inconsistency of the equipment assembly, there will be a certain deviation between the sensitivity and the preset parameters, which will affect the linearity or sensitivity of the detection; after the product is

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  • Method and system for automatically calibrating sensitivity of touch detection, and touch control terminal
  • Method and system for automatically calibrating sensitivity of touch detection, and touch control terminal
  • Method and system for automatically calibrating sensitivity of touch detection, and touch control terminal

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] In the embodiment of the present invention, when there is a touch action on the outside, the parameter value of the touch signal is obtained, and the difference or reference value of the touch signal parameter value relative to the reference value or the change speed of the difference is effectively calculated in real time. Adjust to realize the dynamic calibration of the sensitivity.

[0025] figure 1 The implementation process of the automatic calibration method for touch detection sensitivity provided by the embodiment of the present invention is shown, and the details are as follows:

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Abstract

The invention is suitable for the technical field of touch control and provides a method and a system for automatically calibrating the sensitivity of touch detection, and a touch control terminal. The method comprises the following steps: step a, obtaining a touch signal on a current channel detected by a sensor; step b, judging whether the sensitivity is needed to be adjusted according to a parameter value and a reference value of the touch signal, wherein the reference value is related to the parameter value of the sensor in a steady state without touch; and step c, when the judgment which indicates that the sensitivity needs to be adjusted is made, adjusting a difference value between the parameter value and the reference value of the touch signal. In the invention, dynamic calibration of the sensitivity is realized by detecting the parameter value and the reference value of the touch signal, judging the parameter value and the reference value of the touch signal and duly adjusting the difference value between the parameter value and the reference value of the touch signal according to the change of external touch, so the correctness and the linearity of a detection output position are ensured and the problem of sensitivity caused by the differences of deviation, individual operation habit, system environment and the like in a manufacturing process is solved.

Description

technical field [0001] The invention belongs to the field of touch technology, and in particular relates to an automatic calibration method, system and touch terminal for touch detection sensitivity. Background technique [0002] At present, touch detection input devices have been widely used in personal PCs, mobile phones, personal digital assistants (PDAs), multimedia handheld devices, and household appliances, and are an important input device for human-machine interfaces. When applying capacitive touch detection equipment to specific products, in order to detect the touch action and the position of the touch point normally, it is necessary to set a set of sensitivity parameters according to the thickness of the covering layer on the touch sensor and the size of the sensor. . In actual production, due to the inconsistency of the sensor and the inconsistency of the equipment assembly, there will be a certain deviation between the sensitivity and the preset parameters, whi...

Claims

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Application Information

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IPC IPC(8): G06F3/041
Inventor 石钱松柳玉平陈小祥
Owner SHENZHEN GOODIX TECH CO LTD
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