Method and system for de-noising touch detection device
A technology of touch detection and noise reduction processing, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as increased weight, increased system cost, and decreased product yield, so as to weaken the influence, The effect of reducing product cost
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[0054] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0055] In this embodiment of the present invention, the touch detection nodes are divided into several groups (eg, one group per row, or one group per column, or a combination of several rows and columns), and synchronous sampling is performed on each group, so that the sampling data of each group is affected by the interference signal. The impact is also the same or close to the same. Taking advantage of the feature that the sampling values of the same group of detection points are affected by the interference signal in the same amplitude and direction, the noise component in the sample...
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