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公开(公告)号：US10241632B2
公开(公告)日：2019-03-26
申请号：US15700123
申请日：2017-09-09
发明人： Lei Dai , Zhenyu Zhong , Jinchun Ye , Haolei Wang , Xiaoxiang Chen
摘要： The present disclosure relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as no touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode and determining whether the touch exists in the mutual capacitance mode, updating no reference in the mutual capacitance mode if the touch exists, and updating the reference in the mutual capacitance mode if no touch exists.
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公开(公告)号：US09798428B2
公开(公告)日：2017-10-24
申请号：US14552896
申请日：2014-11-25
发明人： Lei Dai , Zhenyu Zhong , Jinchun Ye , Haolei Wang , Xiaoxiang Chen
CPC分类号： G06F3/044 , G06F3/0416
摘要： The present invention relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as a multi-touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode, determining whether the touch state in the mutual capacitance mode is a single touch or the multi-touch, outputting one touch coordinate if the touch state is the single touch; and outputting a plurality of touch coordinates if the touch state is the multi-touch. The present invention also provides a touch detecting system and a touch terminal for the touch sensor. The present invention improves the accuracy of a touch detection result of the touch sensor, particularly the accuracy of the detection result for distinguishing whether the touch is the single touch or the multi-touch in the case that the touch control terminal is subjected to a large area touch in a floating state.
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