Capacitive and Inductive Sensing
    1.
    发明申请
    Capacitive and Inductive Sensing 有权
    电容和感应感应

    公开(公告)号:US20130106769A1

    公开(公告)日:2013-05-02

    申请号:US13355013

    申请日:2012-01-20

    IPC分类号: G06F3/044

    摘要: In one embodiment, a method includes in an inductive-sensing mode, by a controller, applying an alternating-current (AC) signal on a first electrode of a capacitive touch sensor. The capacitive touch sensor is configured to operate in the inductive-sensing mode and a capacitive-sensing mode. The method also includes sensing a signal indicative of a magnetic field on the first electrode. The signal is due at least in part to a magnetic field generated by the object and the magnetic field is generated at least in part in response to the AC signal applied on the first electrode. The method also includes determining a position of the object generating the magnetic field based on the signal indicative of the magnetic field.

    摘要翻译: 在一个实施例中,一种方法包括在电感感测模式中,由控制器在电容式触摸传感器的第一电极上施加交流(AC)信号。 电容式触摸传感器被配置为在电感感测模式和电容感测模式下操作。 该方法还包括感测指示第一电极上的磁场的信号。 该信号至少部分地由至少部分地由对象产生的磁场产生,并且至少部分地响应于施加在第一电极上的AC信号而产生磁场。 该方法还包括基于指示磁场的信号来确定产生磁场的物体的位置。

    Scaling Voltage for Data Communication Between Active Stylus and Touch-Sensor Device
    2.
    发明申请
    Scaling Voltage for Data Communication Between Active Stylus and Touch-Sensor Device 有权
    有源手写笔和触摸传感器设备之间数据通信的缩放电压

    公开(公告)号:US20130106764A1

    公开(公告)日:2013-05-02

    申请号:US13329273

    申请日:2011-12-17

    IPC分类号: G06F3/045

    摘要: In one embodiment, an apparatus comprises a data-transmitting component and a data-receiving component. The data-transmitting component is operable to: select a set of first reference values and a set of second reference values respectively indicating a lower bound and an upper bound of a range of values; respectively represent the set of first reference values and the set of second reference values as a set of first pulses and a set of second pulses; represent a set of analog values as a set of third pulses, each third pulse having a third amplitude between the first amplitude of a corresponding first pulse and the second amplitude of a corresponding second pulse that is determined based on a percentage of the corresponding analog value within the range of values; and transmit the set of first pulses, the set of third pulses, and the set of second pulses to the data-receiving component.

    摘要翻译: 在一个实施例中,一种装置包括数据发送部件和数据接收部件。 所述数据发送组件可操作用于:分别选择一组第一参考值和一组第二参考值,所述第二参考值分别指示值的范围的下限和上限; 分别表示作为第一脉冲和一组第二脉冲的一组第一参考值和第二参考值的集合; 表示一组模拟值作为一组第三脉冲,每个第三脉冲具有相应的第一脉冲的第一幅度与相应的第二脉冲的第二幅度之间的第三幅度,所述第二幅度是基于对应的模拟值的百分比确定的 在价值范围内; 并将该组第一脉冲,该组第三脉冲和该组第二脉冲发送到数据接收部件。