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    TOUCH CONTROLLER AND OPERATING METHOD OF THE SAME
    1.
    发明公开
    TOUCH CONTROLLER AND OPERATING METHOD OF THE SAME 审中-公开

    公开(公告)号：US20240069673A1

    公开(公告)日：2024-02-29

    申请号：US18350578

    申请日：2023-07-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Choonghoon LEE ,  Minsung KIM ,  Kyungjik MIN ,  Seunghoon BAEK ,  Kyeonggon LEE

    IPC: G06F3/041

    CPC classification number: G06F3/0418 ,  G06F3/04166 ,  G06F3/0446

    Abstract: A touch controller, a touch screen device, and an operating method of the touch controller are provided. A touch controller, performing a touch sensing operation of sensing a touch of a touch panel in a touch sensing period, includes a first clock generator configured to generate a low frequency clock signal for calculating the touch sensing period, a second clock generator configured to generate a high frequency clock signal for performing the touch sensing operation, and a first calibration circuit configured to calibrate a frequency of the low frequency clock signal by using the high frequency clock signal.

    TOUCH PROCESSOR CIRCUIT AND TOUCH SCREEN SYSTEM PERFORMING ANALOG-TO-DIGITAL CONVERSION OF TWO STEPS
    2.
    发明申请
    TOUCH PROCESSOR CIRCUIT AND TOUCH SCREEN SYSTEM PERFORMING ANALOG-TO-DIGITAL CONVERSION OF TWO STEPS 有权
    触控处理器电路和触摸屏系统执行两步的模拟数字转换

    公开(公告)号：US20170003810A1

    公开(公告)日：2017-01-05

    申请号：US15199010

    申请日：2016-06-30

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： San-Ho BYUN ,  Chadong KIM ,  Jinchul LEE ,  Bumsoo KIM ,  Junchul PARK ,  Kyeonggon LEE

    IPC: G06F3/041 ,  H03M3/00 ,  H03M1/08 ,  G06F3/044

    CPC classification number: H03M1/08 ,  G06F3/044 ,  H03M1/144 ,  H03M1/145 ,  H03M3/458 ,  H03M3/464

    Abstract: A touch processor circuit includes a capacitance-to-voltage converter and an analog-to-digital converter. The capacitance-to-voltage converter converts an input signal transmitted from a touch sensor into a conversion signal corresponding to a capacitance of the touch sensor. The analog-to-digital converter digitizes the conversion signal transmitted from the capacitance-to-voltage converter and generates a digital value. The analog-to-digital converter includes a first converter, a second converter, and a combination logic circuit. The first converter calculates upper bits of the digital value based on the conversion signal during a first time period. The second converter calculates lower bits of the digital value based on a residue component signal transmitted from the first converter during a second time period. The combination logic circuit combines the upper bits and the lower bits and generates the digital value.

    Abstract translation: 触摸处理器电路包括电容 - 电压转换器和模 - 数转换器。 电容 - 电压转换器将从触摸传感器发送的输入信号转换成对应于触摸传感器的电容的转换信号。 模数转换器对从电容 - 电压转换器传输的转换信号进行数字化，并产生一个数字值。 模数转换器包括第一转换器，第二转换器和组合逻辑电路。 第一转换器基于第一时间段内的转换信号来计算数字值的高位。 第二转换器基于在第二时间段期间从第一转换器发送的残留分量信号来计算数字值的较低位。 组合逻辑电路组合高位和低位并产生数字值。

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