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    • 6. 发明授权
    • Touch panel system, electronic information device, and method for detecting indicator position
    • 触摸屏系统,电子信息设备,以及检测指示器位置的方法
    • US08937608B2
    • 2015-01-20
    • US13485481
    • 2012-05-31
    • Tamiyo NakabayashiShinichi YoshidaShunsuke Nagasawa
    • Tamiyo NakabayashiShinichi YoshidaShunsuke Nagasawa
    • G06F3/044
    • G06F3/0416G06F3/044
    • A touch panel system can accurately detect a position of an indicator as distinguished from noise, an electronic information device, and an indicator position detecting method are provided. An indicator position detecting portion detects a position of an indicator, which is in contact with or close to a detecting surface P, based on either one of a first or a second capacitance signal. The first capacitance signal is obtained in a first driving mode in which a first drive signal is applied to first signal lines and a first sense signal appearing on second signal lines is applied to a sense signal processing portion. The second capacitance signal is obtained in a second driving mode in which a second drive signal is applied to the second signal lines, and a second sense signal appearing on the first signal lines is applied to the sense signal processing portion.
    • 触摸面板系统可以精确地检测与噪声区分开的指示器的位置,提供电子信息装置和指示器位置检测方法。 指示器位置检测部分基于第一或第二电容信号中的任一个来检测与检测表面P接触或接近的指示器的位置。 在第一驱动模式中获得第一电容信号,其中第一驱动信号被施加到第一信号线,并且出现在第二信号线上的第一感测信号被施加到感测信号处理部分。 在第二驱动模式中获得第二电容信号,其中第二驱动信号被施加到第二信号线,并且出现在第一信号线上的第二感测信号被施加到感测信号处理部分。