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公开(公告)号：US20150309655A1
公开(公告)日：2015-10-29
申请号：US14696755
申请日：2015-04-27
发明人： Sung-Soo Park , Chang-Byung Park , Gyu-Hyeong Cho
CPC分类号： G06F3/0416 , G06F3/0418 , G06F3/044
摘要： A device for sensing a touch by measuring a variation in capacitance according to a contact of an object, and measuring a contact position of the object is provided. The device includes a touch screen panel comprising grid electrodes forming a plurality of electrode patterns, the grid electrodes serving as Tx antennas or Rx antennas, a Tx circuit unit connected with the grid electrode to apply an electric signal to the touch screen panel unit, an Rx circuit unit connected with the grid electrodes to sense variations in the capacitance in the plurality of electrode patterns, and a controller configured to control the touch screen panel unit, the Tx circuit unit, and the Rx circuit unit. The Rx circuit unit includes a first operational amplifier, a first feedback capacitor, and a second feedback capacitor. The first feedback capacitor and the second feedback capacitor are connected with the first operational amplifier. Both terminals of the first feedback capacitor and the first operational amplifier are connected through a first switching unit. The first switching unit includes a 1-1 switch and a 1-2 switch, which are controlled to be short-circuited at a first phase of the electric signal. Both terminals of the second feedback capacitor and the first operational amplifier are connected through a second switching unit. The second switching unit includes a 2-1 switch and a 2-2 switch, which are controlled to be short-circuited at a second phase of the electric signal. The controller is further configured to short-circuit the first switching unit and the second switching unit, at different times, to store charges in each of the first feedback capacitor and the second feedback capacitor.
摘要翻译： 提供了一种用于通过根据物体的接触测量电容变化并测量物体的接触位置来感测触摸的装置。 该装置包括触摸屏面板，其包括形成多个电极图案的栅格电极，用作Tx天线或Rx天线的栅格电极，与栅电极连接以向触摸屏面板单元施加电信号的Tx电路单元， Rx电路单元，与栅电极连接，以检测多个电极图案中的电容的变化;以及控制器，被配置为控制触摸屏面板单元，Tx电路单元和Rx电路单元。 Rx电路单元包括第一运算放大器，第一反馈电容器和第二反馈电容器。 第一反馈电容器和第二反馈电容器与第一运算放大器相连。 第一反馈电容器和第一运算放大器的两个端子通过第一开关单元连接。 第一开关单元包括1-1开关和1-2开关，其被控制为在电信号的第一相处短路。 第二反馈电容器和第一运算放大器的两个端子通过第二开关单元连接。 第二开关单元包括2-1开关和2-2开关，其被控制为在电信号的第二相处短路。 该控制器还被配置为在不同时间使第一开关单元和第二开关单元短路，以在第一反馈电容器和第二反馈电容器的每一个中存储电荷。
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公开(公告)号：US09965081B2
公开(公告)日：2018-05-08
申请号：US14696755
申请日：2015-04-27
发明人： Sung-Soo Park , Chang-Byung Park , Gyu-Hyeong Cho
CPC分类号： G06F3/0416 , G06F3/0418 , G06F3/044
摘要： A device for sensing a touch by measuring a variation in capacitance according to a contact of an object, and measuring a contact position of the object is provided. The device includes a touch screen panel comprising grid electrodes forming a plurality of electrode patterns, the grid electrodes serving as Tx antennas or Rx antennas, a Tx circuit unit connected with the grid electrode to apply an electric signal to the touch screen panel unit, an Rx circuit unit connected with the grid electrodes to sense variations in the capacitance in the plurality of electrode patterns, and a controller configured to control the touch screen panel unit, the Tx circuit unit, and the Rx circuit unit. The Rx circuit unit includes a first operational amplifier, a first feedback capacitor, and a second feedback capacitor. The first feedback capacitor and the second feedback capacitor are connected with the first operational amplifier. Both terminals of the first feedback capacitor and the first operational amplifier are connected through a first switching unit. The first switching unit includes a 1-1 switch and a 1-2 switch, which are controlled to be short-circuited at a first phase of the electric signal. Both terminals of the second feedback capacitor and the first operational amplifier are connected through a second switching unit. The second switching unit includes a 2-1 switch and a 2-2 switch, which are controlled to be short-circuited at a second phase of the electric signal. The controller is further configured to short-circuit the first switching unit and the second switching unit, at different times, to store charges in each of the first feedback capacitor and the second feedback capacitor.
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公开(公告)号：US09886130B2
公开(公告)日：2018-02-06
申请号：US14844630
申请日：2015-09-03
发明人： Sung-Soo Park , Chang-Byung Park , Gyu-Hyeong Cho
CPC分类号： G06F3/0418 , G06F3/044
摘要： A touch sensing device for measuring a contact position of an object by measuring a change in capacitance caused by contact of an object is provided. The touch sensing device includes a touch screen panel on which channel electrodes functioning as a transmission antenna or a reception antenna are disposed to form a plurality of electrode patterns, a transmission circuit connected to the channel electrodes to apply an electrical signal to the touch screen panel, a reception circuit connected to the channel electrodes to sense a varying capacitance from the plurality of electrode patterns, and a controller configured to control the touch screen panel, the transmission circuit and the reception circuit.
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4.发明授权公开(公告)号：US10761650B2
公开(公告)日：2020-09-01
申请号：US16322010
申请日：2017-08-03
发明人： Sung-Soo Park , Byung-Hoon Kang , Chang-Byung Park , Kang-Nam Kim
IPC分类号： G06F3/041 , G06F3/044 , G06F3/0354 , G06F3/038
摘要： A touch sensing device determines a contact location of a pen by using a first electrode signal generated from a first electrode of the pen, determines additional information related to the pen by using a second electrode signal generated from a second electrode of the pen, and can determine tilt information of the pen and/or rotation information of the pen by using a profile of the first electrode signal and a profile of the second electrode signal.
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