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    OUTPUT VOLTAGE STABILIZATION CIRCUIT OF DISPLAY DEVICE DRIVING CIRCUIT
    2.
    发明申请
    OUTPUT VOLTAGE STABILIZATION CIRCUIT OF DISPLAY DEVICE DRIVING CIRCUIT 有权
    显示设备驱动电路的输出电压稳定电路

    公开(公告)号：US20130162618A1

    公开(公告)日：2013-06-27

    申请号：US13511128

    申请日：2010-11-19

    申请人： Jung Il Seo ,  Yong Jung Kwon ,  An Young Kim ,  Joon Ho Na ,  Yun Tack Han ,  Ji Hun Kim ,  Hyun Min Song ,  Yeong Joon Son ,  Sung Wan Jung

    发明人： Jung Il Seo ,  Yong Jung Kwon ,  An Young Kim ,  Joon Ho Na ,  Yun Tack Han ,  Ji Hun Kim ,  Hyun Min Song ,  Yeong Joon Son ,  Sung Wan Jung

    IPC分类号： G06F1/26

    CPC分类号： H03F1/308 ,  G06F1/26 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2380/02

    摘要： The present invention relates to an output voltage stabilization circuit. Specifically, the present invention relates to an output voltage stabilization circuit of a display device driving circuit, which generates a reference current dependent on a high source voltage using a current source independent of a magnitude of the high source voltage, generates a reference current dependent on a low source voltage using a current source independent of a magnitude of the low source voltage, and then generates a control signal by comparing the magnitudes to each other, whereby the output voltage stabilization circuit may stabilize an output voltage regardless of an order in which the low source voltage and the high source voltage are turned off in a circuit using both the low source voltage and the high source voltage.

    摘要翻译： 本发明涉及输出电压稳定电路。 具体地说，本发明涉及一种显示装置驱动电路的输出电压稳定电路，该电路根据高电源电压的幅度产生取决于高电源电压的参考电流，产生依赖于 使用独立于低源电压的幅度的电流源的低电源电压，然后通过将幅度彼此进行比较来产生控制信号，由此输出电压稳定电路可以稳定输出电压，而不管其中的 在低电源电压和高电源电压的电路中，低电源电压和高电源电压都被关断。

    Circuit and method for measuring capacitance value of touch screen
    3.
    发明授权
    Circuit and method for measuring capacitance value of touch screen 有权
    用于测量触摸屏电容值的电路和方法

    公开(公告)号：US08674709B2

    公开(公告)日：2014-03-18

    申请号：US13106411

    申请日：2011-05-12

    申请人： Ji Hun Kim ,  Hyun Min Song ,  Joon Ho Na ,  Ki Uk Gwak ,  Sang Gug Lee

    发明人： Ji Hun Kim ,  Hyun Min Song ,  Joon Ho Na ,  Ki Uk Gwak ,  Sang Gug Lee

    IPC分类号： G01R27/26

    CPC分类号： G06F3/044

    摘要： A circuit for measuring a capacitance value of a touch screen includes: a target capacitor unit having a target capacitor charged with a target charging voltage; a target voltage control unit to charge the target capacitor; a reference capacitor unit having a reference capacitor charged with a charging reference voltage; a reference voltage control unit to charge the reference capacitor; a comparator to compare the target charging voltage and the charging reference voltage and output a transition signal at a moment when the target charging voltage becomes higher than the charging reference voltage; and a controller to receive an output signal of the comparator and a clock signal and generate a digital output signal and a control signal, wherein a capacitance value of the target capacitor is measured using a time elapsed from a time when the target capacitor is initialized to a time when the transition signal is outputted.

    摘要翻译： 用于测量触摸屏的电容值的电路包括：目标电容器单元，其具有充电目标充电电压的目标电容; 目标电压控制单元，用于对目标电容器充电; 具有充电了充电参考电压的参考电容器的参考电容器单元; 参考电压控制单元，用于对参考电容器充电; 比较器，用于比较目标充电电压和充电参考电压，并在目标充电电压变得高于充电参考电压的时刻输出转换信号; 以及控制器，用于接收比较器的输出信号和时钟信号，并产生数字输出信号和控制信号，其中使用从目标电容器初始化的时间起经过的时间来测量目标电容器的电容值 输出转换信号的时间。