METHOD OF AMPLIFYING TOUCH CONTROL SIGNAL AND TOUCH CONTROL DEVICE USING THE SAME
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United States of America Patent
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Issued Date -
Aug 3, 2017
app pub date -
May 26, 2016
filing date -
Feb 2, 2016
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Abstract
The present disclosure provides a method of amplifying a touch control signal and a touch control device, applied to a touch control panel having a plurality of sensing points, including: acquiring capacitance values of at least one row of the sensing points of the touch control panel, and performing at least one round of amplifying steps, wherein each round of the amplifying steps includes subtracting a preset capacitance reference value from the capacitance value of each of the sensing points to obtain a capacitance difference value, and taking a product of amplifying the capacitance difference value by K times as a new capacitance value of the sensing point, where K is any number greater than or equal to 1. The method and the touch control may increase SNR effectively and improve sensitivity of the touch control panel.
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