TOUCH DETECTION TECHNIQUES FOR CAPACITIVE TOUCH SENSE SYSTEMS
    1.
    发明申请
    TOUCH DETECTION TECHNIQUES FOR CAPACITIVE TOUCH SENSE SYSTEMS 有权
    用于电容触摸感应系统的触摸检测技术

    公开(公告)号:US20120043976A1

    公开(公告)日:2012-02-23

    申请号:US13047620

    申请日:2011-03-14

    IPC分类号: G01R27/26

    摘要: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sense element. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The capacitance sense interface monitors a rate of change of the measured capacitance values and rejects an activation of the capacitance sense element as a non-touch event when the rate of change of the measured capacitance values have a magnitude greater than a threshold level, indicative of a maximum rate of change of a touch event.

    摘要翻译: 用于识别和拒绝与电容感测接口相关的假激活事件的技术包括测量电容感测元件的电容值。 分析测量的电容值以确定电容传感器的基线电容值。 当所测量的电容值的变化率具有大于阈值电平的幅度时,电容感测接口监测所测量的电容值的变化率并且拒绝电容感测元件的激活作为非触摸事件,表示 触摸事件的最大变化率。

    Touch detection techniques for capacitive touch sense systems
    2.
    发明授权
    Touch detection techniques for capacitive touch sense systems 有权
    触摸检测技术用于电容式触摸感测系统

    公开(公告)号:US08040142B1

    公开(公告)日:2011-10-18

    申请号:US11729818

    申请日:2007-03-28

    IPC分类号: G01R27/26

    摘要: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sensor within the capacitance sense interface to generate a measured capacitance value. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The baseline capacitance value may be updated based at least in part upon a weighted moving average of the measured capacitance value. The measured capacitance value may also be analyzed to determine whether the capacitance sensor was activated during a startup phase and to adjust the baseline capacitance value in response to determining that the capacitance sensor was activated during the startup phase.

    摘要翻译: 用于识别和拒绝与电容检测接口相关的假激活事件的技术包括测量电容检测接口内的电容传感器的电容值,以产生测量的电容值。 分析测量的电容值以确定电容传感器的基线电容值。 至少部分地基于所测量的电容值的加权移动平均值来更新基线电容值。 还可以分析测量的电容值,以确定电容传感器是否在启动阶段被激活,并且响应于确定在启动阶段激活电容传感器来调整基线电容值。

    Touch detection techniques for capacitive touch sense systems
    3.
    发明授权
    Touch detection techniques for capacitive touch sense systems 有权
    触摸检测技术用于电容式触摸感测系统

    公开(公告)号:US09494627B1

    公开(公告)日:2016-11-15

    申请号:US13590390

    申请日:2012-08-21

    IPC分类号: G01R27/26 G06F3/041 G06F3/044

    摘要: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sense element. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The capacitance sense interface monitors a rate of change of the measured capacitance values and rejects an activation of the capacitance sense element as a non-touch event when the rate of change of the measured capacitance values have a magnitude greater than a threshold level, indicative of a maximum rate of change of a touch event.

    摘要翻译: 用于识别和拒绝与电容感测接口相关的假激活事件的技术包括测量电容感测元件的电容值。 分析测量的电容值以确定电容传感器的基线电容值。 当所测量的电容值的变化率具有大于阈值电平的幅度时,电容感测接口监测所测量的电容值的变化率并且拒绝电容感测元件的激活作为非触摸事件,表示 触摸事件的最大变化率。

    Touch detection techniques for capacitive touch sense systems
    4.
    发明授权
    Touch detection techniques for capacitive touch sense systems 有权
    触摸检测技术用于电容式触摸感测系统

    公开(公告)号:US08248084B2

    公开(公告)日:2012-08-21

    申请号:US13047620

    申请日:2011-03-14

    IPC分类号: G01R27/26 G06F3/041

    摘要: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sense element. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The capacitance sense interface monitors a rate of change of the measured capacitance values and rejects an activation of the capacitance sense element as a non-touch event when the rate of change of the measured capacitance values have a magnitude greater than a threshold level, indicative of a maximum rate of change of a touch event.

    摘要翻译: 用于识别和拒绝与电容感测接口相关的假激活事件的技术包括测量电容感测元件的电容值。 分析测量的电容值以确定电容传感器的基线电容值。 当所测量的电容值的变化率具有大于阈值电平的幅度时,电容感测接口监测所测量的电容值的变化率并且拒绝电容感测元件的激活作为非触摸事件,表示 触摸事件的最大变化率。