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    • 2. 发明授权
    • Method and apparatus compensating noise in touch panel
    • 补偿触摸屏噪声的方法和装置
    • US08736573B2
    • 2014-05-27
    • US13013308
    • 2011-01-25
    • San-ho ByunYoon-kyung Choi
    • San-ho ByunYoon-kyung Choi
    • G06F3/045G06F3/044G06F3/041
    • G06F3/044G06F3/0412G06F3/0416G06F3/0418G06F3/045
    • 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.
    • 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。
    • 10. 发明申请
    • GRAY SCALE VOLTAGE DECODER AND DIGITAL-TO-ANALOG CONVERTER INCLUDING THE SAME
    • 灰度电压解码器和数字到模拟转换器,包括它们
    • US20080291143A1
    • 2008-11-27
    • US12123787
    • 2008-05-20
    • Yoon-Kyung Choi
    • Yoon-Kyung Choi
    • G09G3/36H03M1/66
    • G09G3/20G09G2310/027H03M1/68H03M1/76
    • A gray scale voltage decoder includes a first decoding unit and a second decoding unit, in which the first decoding unit includes row blocks. Each of the row blocks receives one of a number of gray scale voltages and determines whether to output the received gray scale voltage in response to first bits of digital image data provided through data input lines formed along a column direction. Row blocks outputting the received gray scale voltage according to the same values of the first bits are arranged adjacently. The first decoding unit selects part of the gray scale voltages to output the selected gray scale voltages. The second decoding unit selects one of the gray scale voltages selected by the first decoding unit in response to second bits of the digital image data and outputs the selected gray scale voltage.
    • 灰度级电压解码器包括第一解码单元和第二解码单元,其中第一解码单元包括行块。 每个行块接收多个灰度级电压中的一个,并且响应于通过沿着列方向形成的数据输入线提供的数字图像数据的第一位来确定是否输出接收的灰度级电压。 根据第一位的相同值输出接收到的灰度级电压的行块相邻布置。 第一解码单元选择部分灰度电压以输出所选择的灰度级电压。 第二解码单元响应于数字图像数据的第二位选择由第一解码单元选择的灰度级电压之一,并输出所选择的灰度级电压。