Cyclic digital to analog converter in pipeline structure
    1.
    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

    IPC分类号: H03M1/66

    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。

    Multi-touch sensing circuit
    3.
    发明授权
    Multi-touch sensing circuit 有权
    多点触摸感应电路

    公开(公告)号:US08643609B2

    公开(公告)日:2014-02-04

    申请号:US12618264

    申请日:2009-11-13

    IPC分类号: G06F3/041

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A multi-touch sensing includes a voltage-current converter converting an input voltage into a current. A touch sensing block senses touch of an object. An amplifier includes a first input terminal connected to an output terminal of the voltage-current converter and to a first terminal of the touch sensing block. A second input terminal of the amplifier is grounded. An output terminal of the amplifier is connected to a second terminal of the touch sensing block.

    摘要翻译: 多点触摸感测包括将输入电压转换为电流的电压 - 电流转换器。 触摸感测块感测物体的触摸。 放大器包括连接到电压 - 电流转换器的输出端子和触摸感测块的第一端子的第一输入端子。 放大器的第二个输入端接地。 放大器的输出端子连接到触摸感测块的第二端子。

    Method and apparatus compensating noise in touch panel
    4.
    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

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

    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。

    MULTI-TOUCH SENSING CIRCUIT
    6.
    发明申请
    MULTI-TOUCH SENSING CIRCUIT 有权
    多触摸感应电路

    公开(公告)号:US20100134438A1

    公开(公告)日:2010-06-03

    申请号:US12618264

    申请日:2009-11-13

    IPC分类号: G06F3/041

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A multi-touch sensing includes a voltage-current converter converting an input voltage into a current. A touch sensing block senses touch of an object. An amplifier includes a first input terminal connected to an output terminal of the voltage-current converter and to a first terminal of the touch sensing block. A second input terminal of the amplifier is grounded. An output terminal of the amplifier is connected to a second terminal of the touch sensing block.

    摘要翻译: 多点触摸感测包括将输入电压转换为电流的电压 - 电流转换器。 触摸感测块感测物体的触摸。 放大器包括连接到电压 - 电流转换器的输出端子和触摸感测块的第一端子的第一输入端子。 放大器的第二个输入端接地。 放大器的输出端子连接到触摸感测块的第二端子。

    Adaptive digital filtering method and apparatus in touch sensing system
    7.
    发明授权
    Adaptive digital filtering method and apparatus in touch sensing system 有权
    触摸感应系统中的自适应数字滤波方法和装置

    公开(公告)号:US09134857B2

    公开(公告)日:2015-09-15

    申请号:US13103257

    申请日:2011-05-09

    IPC分类号: G06F3/044 G06F3/041

    摘要: An adaptive digital filtering method and apparatus for touch data in a touch system is described. Adaptive digital filtering involves estimating a signal-to-noise ratio (SNR) for stored touch data, and reducing a digital filter order if the SNR is high and increasing the digital filter order if the SNR is small.

    摘要翻译: 描述了触摸系统中的触摸数据的自适应数字滤波方法和装置。 自适应数字滤波包括估计用于存储的触摸数据的信噪比(SNR),并且如果SNR较高并且如果SNR小则增加数字滤波器阶数,则减少数字滤波器阶数。

    Charge Pump Circuit and Voltage Converter Using the Same
    8.
    发明申请
    Charge Pump Circuit and Voltage Converter Using the Same 有权
    电荷泵电路和电压转换器使用它

    公开(公告)号:US20100171372A1

    公开(公告)日:2010-07-08

    申请号:US12652267

    申请日:2010-01-05

    IPC分类号: H02M3/07

    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 开关元件组,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。

    Liquid crystal displays, timing controllers and data mapping methods
    9.
    发明申请
    Liquid crystal displays, timing controllers and data mapping methods 审中-公开
    液晶显示器,定时控制器和数据映射方法

    公开(公告)号:US20090015574A1

    公开(公告)日:2009-01-15

    申请号:US12155792

    申请日:2008-06-10

    IPC分类号: G09G3/36 G09G3/20

    摘要: In a liquid crystal display (LCD), a liquid crystal panel includes a plurality of subpixels. Source drivers drive source lines of the liquid crystal panel and gate drivers drive gate lines of the liquid crystal panel. A timing controller generates combination pixel data using current pixel data and previous pixel data, and supplies the generated combination pixel data to the source drivers. The previous pixel data is generated by delaying the current pixel data by a first time period.

    摘要翻译: 在液晶显示器(LCD)中,液晶面板包括多个子像素。 源驱动器驱动液晶面板的源极线,栅极驱动器驱动液晶面板的栅极线。 定时控制器使用当前像素数据和先前像素数据生成组合像素数据,并将生成的组合像素数据提供给源驱动器。 通过将当前像素数据延迟第一时间段来生成先前像素数据。