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    Charge pump circuit and voltage converter using the same
    3.
    发明授权
    Charge pump circuit and voltage converter using the same 有权
    电荷泵电路和电压转换器使用相同

    公开(公告)号：US08232835B2

    公开(公告)日：2012-07-31

    申请号：US12652267

    申请日：2010-01-05

    申请人： Hyoung-rae Kim ,  Hee-seok Han ,  Yoon-kyung Choi

    发明人： Hyoung-rae Kim ,  Hee-seok Han ,  Yoon-kyung Choi

    IPC分类号： G05F1/10

    CPC分类号： H02M3/07 ,  Y10T307/76

    摘要： An apparatus for generating a voltage required for a semiconductor device by using a voltage supplied from an external power supply is provided. A charge pump circuit includes a first circuit comprising a first capacitor and a first group of switching elements and controlling the first group of switching elements according to first and second switching signals to transfer a voltage charged in the first capacitor to a target terminal during a first period and to charge the first capacitor with a reference voltage applied to a first input terminal of the first capacitor during a second period, and a second circuit comprising a second capacitor, a third capacitor connected between an output terminal and a ground terminal and a second group of switching elements, and controlling the second group of switching elements according to the first and second switching signals to connect a first terminal of the second capacitor to the ground terminal during the first period, connect the first terminal of the second capacitor to a power supply voltage input terminal during the second period, connect a second terminal of the second capacitor to the power supply voltage input terminal when a voltage of the second terminal of the second capacitor is lower than a voltage of the target terminal during the first period, and connect the second terminal of the second capacitor to the output terminal during the second period.

    摘要翻译： 提供一种通过使用从外部电源提供的电压来产生半导体器件所需的电压的装置。 电荷泵电路包括：第一电路，包括第一电容器和第一组开关元件，并且根据第一和第二开关信号控制第一组开关元件，以在第一电容器和第二开关元件期间将在第一电容器中充电的电压传送到目标端子 并且在第二时段期间用施加到第一电容器的第一输入端的参考电压对第一电容器充电;以及第二电路，包括第二电容器，连接在输出端子和接地端子之间的第三电容器，以及第二电容器 组开关元件，并且根据第一和第二开关信号控制第二组开关元件，以在第一时段期间将第二电容器的第一端子连接到接地端子，将第二电容器的第一端子连接到电源 电源电压输入端子，连接第二电容器的第二端子 在第一时段期间当第二电容器的第二端子的电压低于目标端子的电压时，连接到电源电压输入端子，并且在第二时段期间将第二电容器的第二端子连接到输出端子。

    METHOD AND APPARATUS FOR CORRECTING TOUCH COORDINATES IN TOUCH SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS FOR CORRECTING TOUCH COORDINATES IN TOUCH SYSTEM 审中-公开
    用于校正触控系统中触控坐标的方法和装置

    公开(公告)号：US20110310038A1

    公开(公告)日：2011-12-22

    申请号：US13158567

    申请日：2011-06-13

    申请人： Jong-Kang PARK ,  Chang-Ju LEE ,  Yoon-Kyung CHOI

    发明人： Jong-Kang PARK ,  Chang-Ju LEE ,  Yoon-Kyung CHOI

    IPC分类号： G06F3/041

    CPC分类号： G06F3/0418 ,  G06F3/044

    摘要： A method of operating a touch system comprises storing a lookup table for correcting a touch coordinate value of a touch panel, acquiring touch data generated in response to a touch conductor on the touch panel and calculating the touch coordinate value from the acquired touch data, measuring a size of the touch conductor, and correcting the touch coordinate value by accessing the lookup table using the touch coordinate value and the size of the touch conductor as input parameters.

    摘要翻译： 操作触摸系统的方法包括存储用于校正触摸面板的触摸坐标值的查找表，获取响应于触摸面板上的触摸导体生成的触摸数据，并根据获取的触摸数据计算触摸坐标值，测量 触摸导体的尺寸，并且通过使用触摸坐标值和触摸导体的尺寸作为输入参数来访问查找表来校正触摸坐标值。

    LEVEL SHIFTER
    5.
    发明申请
    LEVEL SHIFTER 审中-公开
    水平变化

    公开(公告)号：US20110096068A1

    公开(公告)日：2011-04-28

    申请号：US12910035

    申请日：2010-10-22

    申请人： Yoon-kyung Choi ,  Hyoung-rae Kim ,  Min-soo Cho

    发明人： Yoon-kyung Choi ,  Hyoung-rae Kim ,  Min-soo Cho

    IPC分类号： G09G5/00 ,  H03L5/00

    CPC分类号： H03K19/018521

    摘要： A level shifter including a voltage selection unit and at least one voltage level conversion unit. The voltage selection unit may be configured to apply a first voltage to a power supply node during a first time interval and apply a second voltage to the power supply node during a second time interval, in response to a control signal. The voltage level conversion unit may be connected to the power supply node and may be configured to convert a voltage level of an input signal to another voltage level based upon a voltage level at the power supply node and a third voltage.

    摘要翻译： 一种电平移位器，包括电压选择单元和至少一个电压电平转换单元。 电压选择单元可以被配置为在第一时间间隔期间向电源节点施加第一电压，并且响应于控制信号在第二时间间隔期间向电源节点施加第二电压。 电压电平转换单元可以连接到电源节点，并且可以被配置为基于电源节点处的电压电平和第三电压将输入信号的电压电平转换为另一电压电平。

    Cyclic digital to analog converter in pipeline structure
    7.
    发明授权
    Cyclic digital to analog converter in pipeline structure 有权
    循环数模转换器在管道结构中的应用

    公开(公告)号：US07551113B2

    公开(公告)日：2009-06-23

    申请号：US12038852

    申请日：2008-02-28

    申请人： Zhong-yuan Wu ,  Yoon-kyung Choi

    发明人： Zhong-yuan Wu ,  Yoon-kyung Choi

    IPC分类号： H03M1/66

    CPC分类号： H03M1/0617 ,  H03M1/002 ,  H03M1/662 ,  H03M1/667

    摘要： A cyclic digital to analog converter (CDAC) in a pipeline structure includes a first CDAC block and a second CDAC block. The first CDAC block receives a first digital signal and converts the first digital signal to a first analog value. The first CDAC block includes a charging capacitor for charging according to the first digital signal and a first storing capacitor for storing the first analog value. The second CDAC block receives a second digital signal and converts the second digital signal to a second analog value. The second CDAC block includes the charging capacitor for charging according to the second digital signal and a second storing capacitor for storing the second analog value. The first CDAC block and the second CDAC block share the charging capacitor.

    摘要翻译： 流水线结构中的循环数模转换器（CDAC）包括第一CDAC块和第二CDAC块。 第一CDAC块接收第一数字信号并将第一数字信号转换为第一模拟值。 第一CDAC块包括用于根据第一数字信号进行充电的充电电容器和用于存储第一模拟值的第一存储电容器。 第二CDAC块接收第二数字信号并将第二数字信号转换为第二模拟值。 第二CDAC块包括用于根据第二数字信号进行充电的充电电容器和用于存储第二模拟值的第二存储电容器。 第一个CDAC模块和第二个CDAC模块共享充电电容。

    Bit-adjacency capacitor-switched DAC, method, driver and display device
    8.
    发明申请
    Bit-adjacency capacitor-switched DAC, method, driver and display device 有权
    位邻接电容切换DAC，方法，驱动和显示设备

    公开(公告)号：US20070216563A1

    公开(公告)日：2007-09-20

    申请号：US11644991

    申请日：2006-12-26

    申请人： Zhong Wu ,  Yoon-Kyung Choi

    发明人： Zhong Wu ,  Yoon-Kyung Choi

    IPC分类号： H03M1/12

    CPC分类号： H03M1/667

    摘要： A cyclic digital to analog converter (CDAC) includes: first and second capacitors C1 and C2; an arrangement of switches selectively controllable to connect C1 and C2 in one of at least two charging-and-sharing configurations, the first configuration having the first capacitor C1 as a charging capacitor CCH and the second capacitor C2 as a sharing capacitor CSH, namely CCH=C1 and CSH=C2, and the second configuration having CCH=C2 and CSH=C1; and a controller to toggle the arrangement of switches between the first and second configurations based upon adjacent bits of a given input word.

    摘要翻译： 循环数模转换器（CDAC）包括：第一和第二电容器C 1和C 2; 选择性地控制开关以将至少两个充电和共享配置中的一个连接到C 1和C 2的开关的布置，所述第一配置具有作为充电电容器CCH的第一电容器C 1和作为共用电容器的第二电容器C 2 CSH，即CCH = C 1和CSH = C 2，第二配置具有CCH = C 2和CSH = C 1; 以及控制器，用于基于给定输入字的相邻位来切换第一和第二配置之间的开关的布置。

    Method and apparatus compensating noise in touch panel
    10.
    发明授权
    Method and apparatus compensating noise in touch panel 有权
    补偿触摸屏噪声的方法和装置

    公开(公告)号：US08736573B2

    公开(公告)日：2014-05-27

    申请号：US13013308

    申请日：2011-01-25

    申请人： San-ho Byun ,  Yoon-kyung Choi

    发明人： San-ho Byun ,  Yoon-kyung Choi

    IPC分类号： G06F3/045 ,  G06F3/044 ,  G06F3/041

    CPC分类号： G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/045

    摘要： Touch screen systems and method of compensating noise in same are presented. One touch screen system includes; a touch screen panel having sense channels providing a sense output corresponding to a capacitance variation associated with an applied touch input as detected by one or more sensing units connected to the sense channels. A parasitic capacitance is accumulated in the sense channels as the touch input is applied. The touch screen system also includes a touch controller receiving the sense output and including; a noise compensation block configured to generate a compensation capacitance to compensate for the parasitic capacitance and provide a compensation output, and a signal conversion unit that receives the sense output and the compensation output and generates a noise compensated sense output.

    摘要翻译： 介绍了触摸屏系统和噪声补偿方法。 一触摸屏系统包括： 具有感测通道的触摸屏面板，其提供对应于与连接到感测通道的一个或多个感测单元检测到的与所施加的触摸输入相关联的电容变化的感测输出。 当施加触摸输入时，寄生电容在感测通道中累积。 触摸屏系统还包括接收感测输出并包​​括的触摸控制器; 噪声补偿块，被配置为产生补偿电容以补偿寄生电容并提供补偿输出;以及信号转换单元，其接收感测输出和补偿输出并产生噪声补偿感测输出。