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    • 1. 发明公开
    • TOUCH-TYPE INPUT DEVICE
    • EINGABEVORRICHTUNG MITBERÜHRUNGSBILDSCHIRM
    • EP2960757A1
    • 2015-12-30
    • EP15173280.7
    • 2015-06-23
    • KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOToyota Jidosha Kabushiki KaishaSMK Corporation
    • IMAI, TakaoUENO, ToruMURASE, KeijiTAKAI, YujiNORITAKE, HirokiSHIKATA, HiroshiKAMIYA, NaokiYOSHIKAWA, Osamu
    • G06F3/041G06F3/044
    • G09G3/20G06F3/0418G06F3/044G06F2203/04104G09G2354/00G09G2380/10
    • A touch-type input device (10) includes a touch panel (11) including drive electrodes (12) and sensor electrodes (13). Capacitors (C) are formed at intersections of the drive electrodes (12) and sensor electrodes (13). A controller (21) determines whether a conductive foreign matter exists on the touch panel (11) from raw data values indicating changes in the capacitances of the capacitors (C) from initial reference values. The controller (21) determines touching of the touch panel (11) from control data values indicating changes in the capacitances of the capacitors (C) from control reference values changed when a conductive foreign matter exists. When the raw data values indicate existence of a conductive foreign matter, the controller (21) sets the control reference value of each capacitor (C) to a raw data reference value corresponding to the present raw data value. The controller (21) updates the initial reference value when the touch-type input device (10) is activated and updates the control reference value when the control reference value is erroneous.
    • 触摸式输入装置(10)包括包括驱动电极(12)和传感器电极(13)的触摸面板(11)。 电容器(C)形成在驱动电极(12)和传感器电极(13)的交点处。 根据初始参考值,控制器(21)根据指示电容器(C)的电容变化的原始数据值确定触摸面板(11)上是否存在导电异物。 控制器(21)从导电异物存在时改变的控制参考值,根据控制数据值确定触摸面板(11)的触摸,指示电容器(C)的电容变化。 当原始数据值表示存在导电异物时,控制器(21)将每个电容器(C)的控制参考值设置为与当前原始数据值对应的原始数据参考值。 当触摸式输入装置(10)被激活时,控制器(21)更新初始参考值,并且当控制参考值错误时更新控制参考值。