Object positioning for an X-Y projected capacitive touch panel
    1.
    发明授权
    Object positioning for an X-Y projected capacitive touch panel 有权
    X-Y投影电容式触控面板的对象定位

    公开(公告)号:US09069419B2

    公开(公告)日:2015-06-30

    申请号:US12869114

    申请日:2010-08-26

    IPC分类号: G06F3/041 G06F3/044

    摘要: Methods are proposed for object positioning for an X-Y projected capacitive touch panel. In an embodiment, capacitance sensing under inphase excitation of traces is applied to set a base value when the capacitive touch panel is not touched and to obtain capacitances at intersections when the capacitive touch panel is touched, and the base value is compared with the measured capacitances to identify touch points. In other embodiments, X-Y projected sensing and all-point sensing are combined to reduce the amount of calculation and achieve the same positioning effect as an all-point capacitive touch panel.

    摘要翻译: 提出了用于X-Y投影电容式触摸面板的物体定位的方法。 在一个实施例中,当电容触摸面板未被触摸时,施加同时励磁轨迹处的电容感测以设置基值,并且在触摸电容触摸面板时获得交点处的电容,并将基准值与所测量的电容进行比较 识别接触点。 在其他实施例中,组合X-Y投影感测和全点感测以减少计算量并且实现与全点电容式触摸面板相同的定位效果。