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    • 6. 发明授权
    • Touch panel system and electronic device
    • 触摸屏系统和电子设备
    • US08902200B2
    • 2014-12-02
    • US13589257
    • 2012-08-20
    • Masayuki MiyamotoShinichi YoshidaAkira NishiokaManabu YumotoKengo Takahama
    • Masayuki MiyamotoShinichi YoshidaAkira NishiokaManabu YumotoKengo Takahama
    • G06F3/042
    • G06F3/044G06F3/0416G06F3/0418G06F2203/04112
    • A touch panel system includes a touch panel having sense lines, and drive lines which intersect the sense lines and form capacitance with the sense lines, a touch panel controller for processing signals of the sense lines, and a drive line driving circuit for driving the drive lines in parallel. The touch panel controller includes a subtracting section for finding differences in signals between the sense lines adjacent to each other, a decoding section for calculating a distribution of differences between the capacitances by calculating an inner product of code sequences for driving the drive lines in parallel and difference output sequences which correspond to the code sequences, a touch detecting section for obtaining touch information based on the distribution of differences between the capacitances calculated by the decoding section, and a region setting section for setting an effective region in the touch panel based on the touch information.
    • 触摸面板系统包括具有感测线的触摸面板和与感测线相交并与感测线形成电容的驱动线,用于处理感测线的信号的触摸面板控制器和用于驱动驱动器的驱动线驱动电路 行并行。 触摸面板控制器包括用于求出彼此相邻的感测线之间的信号差异的减法部分,用于通过计算并行驱动驱动线的代码序列的内积来计算电容之间的差分布的解码部分,以及 对应于代码序列的差分输出序列,用于基于由解码部分计算出的电容之间的差异的分布获得触摸信息的触摸检测部分和用于基于触摸面板设置触摸面板中的有效区域的区域设置部分 触摸信息。