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公开(公告)号：US20220334671A1
公开(公告)日：2022-10-20
申请号：US17859576
申请日：2022-07-07
发明人： Tae-gil KANG , Hang YIN , Cam Chung LA
摘要： An electronic device includes a touch screen for a touch sensitive display carried by a portable housing. The electronic device is configured to operate in a high detection threshold mode to determine whether an object is in contact with the touch sensitive display, and operate in a low detection threshold mode to determine whether the object is adjacent to the touch sensitive display, based on lack of detection of the object being in contact with the touch sensitive display. The electronic device is further configured to determine whether the object s in contact with a peripheral edge of the portable housing by determining whether the object is adjacent opposite sides of the touch sensitive display, based on detection of the object being adjacent to the touch sensitive display.
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2.发明申请公开(公告)号：US20180373381A1
公开(公告)日：2018-12-27
申请号：US16011941
申请日：2018-06-19
发明人： Tae-gil KANG , Jay WANG
IPC分类号： G06F3/041 , G06F3/044 , G06F3/047 , G06F3/0488
摘要： A touch screen controller includes input circuitry receiving touch data from the touch screen. Processing circuitry acquires touch data from the input circuitry in a self-capacitance sensing mode, locates a force island and locates a sense island. A length of the force island and a length of the sense island is calculated. If the length of the force island is greater than a threshold force length and if the length of the sense island is greater than a threshold sense length, then the product of the lengths is calculated, and if greater than a threshold size, designated a valid area. Touch data in the valid area is then acquired in mutual-capacitance sensing mode, and represents palm touch if a maximum strength value in the valid area is less than a maximum area threshold and if a minimum strength value in the valid area is greater than a minimum area threshold.
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