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    • 4. 发明授权
    • Position detecting device and position input device
    • 位置检测装置和位置输入装置
    • US08665211B2
    • 2014-03-04
    • US13045319
    • 2011-03-10
    • Noriyuki KitaharaKe Chao
    • Noriyuki KitaharaKe Chao
    • G09G5/00
    • G06F3/046G01D5/20G06F3/0416G06F3/047
    • A position detecting device is provided, which is configured to minimize leakage of magnetic flux in an electromagnetic induction system. The position detecting device includes: a sensor unit including a plurality of first loop coils arranged in a first direction and a plurality of second loop coils arranged in a second direction intersecting with the first direction; a yoke sheet provided on a side of the sensor unit that is opposite to a side that faces a position indicator; an auxiliary loop coil provided at a corner part of the sensor unit; a signal transmitter configured to transmit a signal to one of the coils in order to generate a magnetic field to induce an induced current in a coil of the position indicator; and a controller configured to select one of the coils, and to control whether to transmit a signal from the signal transmitter to the selected one of the coils or to make the selected one of the coils receive a signal from the position indicator.
    • 提供了一种位置检测装置,其被配置为使电磁感应系统中的磁通量的泄漏最小化。 位置检测装置包括:传感器单元,包括沿第一方向布置的多个第一环形线圈和沿与第一方向相交的第二方向布置的多个第二环形线圈; 设置在所述传感器单元的与面向位置指示器的一侧相对的一侧的磁轭片; 设置在所述传感器单元的角部的辅助环形线圈; 信号发送器,被配置为向一个线圈发送信号,以产生磁场,以引起位置指示器的线圈中的感应电流; 以及控制器,被配置为选择线圈中的一个,并且控制是否将信号从信号发射器传输到所选择的一个线圈,或者使所选择的一个线圈从位置指示器接收信号。
    • 5. 发明申请
    • POSITION DETECTING DEVICE AND POSITION INPUT DEVICE
    • 位置检测装置和位置输入装置
    • US20110234485A1
    • 2011-09-29
    • US13045319
    • 2011-03-10
    • Noriyuki KitaharaKe Chao
    • Noriyuki KitaharaKe Chao
    • G09G5/00G01B7/14
    • G06F3/046G01D5/20G06F3/0416G06F3/047
    • A position detecting device is provided, which is configured to minimize leakage of magnetic flux in an electromagnetic induction system. The position detecting device includes: a sensor unit including a plurality of first loop coils arranged in a first direction and a plurality of second loop coils arranged in a second direction intersecting with the first direction; a yoke sheet provided on a side of the sensor unit that is opposite to a side that faces a position indicator; an auxiliary loop coil provided at a corner part of the sensor unit; a signal transmitter configured to transmit a signal to one of the coils in order to generate a magnetic field to induce an induced current in a coil of the position indicator; and a controller configured to select one of the coils, and to control whether to transmit a signal from the signal transmitter to the selected one of the coils or to make the selected one of the coils receive a signal from the position indicator.
    • 提供了一种位置检测装置,其被配置为使电磁感应系统中的磁通量的泄漏最小化。 位置检测装置包括:传感器单元,包括沿第一方向布置的多个第一环形线圈和沿与第一方向相交的第二方向布置的多个第二环形线圈; 设置在所述传感器单元的与面向位置指示器的一侧相对的一侧的磁轭片; 设置在所述传感器单元的角部的辅助环形线圈; 信号发送器,被配置为向一个线圈发送信号,以产生磁场,以引起位置指示器的线圈中的感应电流; 以及控制器,被配置为选择线圈中的一个,并且控制是否将信号从信号发射器传输到所选择的一个线圈,或者使所选择的一个线圈从位置指示器接收信号。