TECHNIQUES FOR CAPACITIVE TOUCH SCREEN CONTROL
    1.
    发明申请
    TECHNIQUES FOR CAPACITIVE TOUCH SCREEN CONTROL 审中-公开
    电容触摸屏控制技术

    公开(公告)号:US20130050132A1

    公开(公告)日:2013-02-28

    申请号:US13218788

    申请日:2011-08-26

    IPC分类号: G06F3/045

    摘要: Techniques to control a capacitive touch screen that decrease processing time and increase noise rejection. The techniques may include injecting a plurality of excitation signals having unique spectral profiles onto conductors of the capacitive touch screen, sampling signals returned from the screen, and determining a location of touch. The techniques may further include injecting a plurality of excitation signals having unique spectral profiles onto adjacent or non-adjacent conductors of the capacitive touch screen. The techniques may further include injecting a plurality of excitation signals having unique spectral profiles onto conductors of the capacitive touch screen in unequal measures. The techniques may also include mapping frequency characteristics of noise present on the capacitive touch screen.

    摘要翻译: 用于控制电容式触摸屏的技术,其减少处理时间并增加噪声抑制。 这些技术可以包括将具有独特光谱轮廓的多个激励信号注入到电容式触摸屏的导体上,从屏幕返回的采样信号以及确定触摸的位置。 这些技术可以进一步包括将具有唯一光谱轮廓的多个激励信号注入到电容式触摸屏的相邻或非相邻导体上。 这些技术可以进一步包括以不相等的措施将具有独特光谱分布的多个激励信号注入到电容式触摸屏的导体上。 这些技术还可以包括映射存在于电容式触摸屏上的噪声的频率特性。

    System and method for dual-touch gesture classification in resistive touch screens
    6.
    发明授权
    System and method for dual-touch gesture classification in resistive touch screens 有权
    电阻式触摸屏中双触式手势分类的系统和方法

    公开(公告)号:US09152287B2

    公开(公告)日:2015-10-06

    申请号:US12851291

    申请日:2010-08-05

    IPC分类号: G06F3/041 G06F3/045

    CPC分类号: G06F3/045 G06F2203/04104

    摘要: A system and method for classifying touches input into a four-wire resistive touch screen is presented. A voltage may be applied to electrodes in a layer making it the active layer. A first set of four voltages may be measured by a voltage sensing circuit from electrodes in the active layer of a touch screen and a passive layer of a touch screen. The voltage may be switched from electrodes of the first layer to the electrodes of the second layer. A voltage sensing circuit may measure a second set of four voltages nearly simultaneously from electrodes in the active layer and the passive layer of a touch screen. Each set of measured voltages from the passive layer and or the active may be processed. A rule set may be applied to the processing results. An indication of the type of touch that was applied to the touch screen may be provided and optionally including quantitative results.

    摘要翻译: 提出了一种将触摸输入分类为四线电阻式触摸屏的系统和方法。 可以在使其成为有源层的层中的电极上施加电压。 可以通过电压感测电路从触摸屏的有源层中的电极和触摸屏的被动层测量第一组四个电压。 电压可以从第一层的电极切换到第二层的电极。 电压感测电路可以几乎同时从触摸屏的有源层和被动层中的电极测量第二组四个电压。 可以处理来自被动层和/或活动的每组测量电压。 规则集可以应用于处理结果。 可以提供应用于触摸屏的触摸类型的指示,并且可选地包括定量结果。