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    TOUCH ANALOG FRONT END AND TOUCH SENSOR CONTROLLER HAVING THE SAME
    1.
    发明申请
    TOUCH ANALOG FRONT END AND TOUCH SENSOR CONTROLLER HAVING THE SAME 有权
    触摸模拟前端和触摸传感器控制器

    公开(公告)号：US20160124544A1

    公开(公告)日：2016-05-05

    申请号：US14741940

    申请日：2015-06-17

    申请人： Samsung Electronics Co., Ltd.

    发明人： Sanghyub Kang ,  San-ho Byun ,  Jinchul Lee ,  Chadong Kim ,  Bumsoo Kim ,  Junchul Park ,  Hojin Park ,  Hyunkyu Ouh ,  Kyunghoon Lee ,  Michael Choi ,  Yoonkyung Choi

    IPC分类号： G06F3/044

    CPC分类号： G06F3/044 ,  G06F1/163 ,  G06F3/011 ,  G06F3/03547 ,  G06F3/0418 ,  G06F2203/0339 ,  G06F2203/04108

    摘要： A touch analog front-end (AFE) for a touch sensitive screen may include a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver may include a charge-to-voltage (C2V) converter configured to convert a change of capacitance received from the touch panel into a voltage signal, a correlated double sampling (CDS) block configured to convert the voltage signal into a differential signal and to sample each of the positive and the negative signals of the differential signal, and an integrator configured to accumulate a difference between the sampled positive and negative signals.

    摘要翻译： 用于触敏屏幕的触摸模拟前端（AFE）可以包括被配置为对触摸面板和被配置为感测触摸面板的接收器充电的发射器。 接收器可以包括被配置为将从触摸面板接收的电容的变化转换为电压信号的电荷 - 电压（C2V）转换器，被配置为将电压信号转换为差分信号的相关双采样（CDS）块，以及 对差分信号的正和负信号进行采样，以及积分器，被配置为累积采样的正和负信号之间的差。

    TOUCH ANALOG FRONT END AND TOUCH SENSOR CONTROLLER HAVING THE SAME
    4.
    发明申请
    TOUCH ANALOG FRONT END AND TOUCH SENSOR CONTROLLER HAVING THE SAME 有权
    触摸模拟前端和触摸传感器控制器

    公开(公告)号：US20160098150A1

    公开(公告)日：2016-04-07

    申请号：US14851775

    申请日：2015-09-11

    申请人： Samsung Electronics Co., Ltd.

    发明人： Sanghyub Kang ,  Hojin Park ,  Kyunghoon Lee ,  Jungho Lee

    IPC分类号： G06F3/041 ,  G06F3/0354 ,  G06F3/01 ,  G06F3/044 ,  G06F1/32

    CPC分类号： G06F3/0418 ,  G06F1/163 ,  G06F3/011 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101

    摘要： A touch analog front-end (AFE) and a touch sensor controller (TSC) are provided. The touch AFE includes a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver includes a charge-to-voltage (C2V) converter configured to convert an amount of change of capacitance received from the touch panel into a voltage signal, a filter configured to filter a noise from the voltage signal, resulting in a filtered voltage signal, an integrator configured to accumulate the filtered voltage signal, and a polarity detection circuit configured to monitor the filtered voltage signal and to control the integrator to invert a polarity of the filtered voltage signal when it is negative.

    摘要翻译： 提供触摸模拟前端（AFE）和触摸传感器控制器（TSC）。 触摸AFE包括被配置为对触摸面板充电的发射器和被配置为感测触摸面板的接收器。 所述接收器包括电荷电压（C2V）转换器，其被配置为将从触摸面板接收的电容量的变化量转换成电压信号，滤波器被配置为滤除来自所述电压信号的噪声，从而产生经滤波的电压信号 被配置为累积经滤波的电压信号的积分器，以及极性检测电路，被配置为监视经滤波的电压信号，并且当积分器为负时，控制积分器反相滤波电压信号的极性。