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    Electronic device and method of identifying frequency for detecting touches
    2.
    发明授权
    Electronic device and method of identifying frequency for detecting touches 有权
    用于识别触摸的频率的电子设备和方法

    公开(公告)号：US09244550B2

    公开(公告)日：2016-01-26

    申请号：US13969089

    申请日：2013-08-16

    Applicant: BLACKBERRY LIMITED

    Inventor： Amit Pal Singh ,  Premal Vinodchandra Parekh ,  Rohan Michael Nandakumar ,  Byron Allen Schiel ,  John Edward Dolson

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/044

    Abstract: A method includes identifying a first plurality of drive frequencies at which drive electrodes of a touch-sensitive display of an electronic device are driven, wherein the first plurality of drive frequencies includes a first frequency and a second frequency. A first noise value at the first frequency is determined. When the first noise value meets a first threshold value and the first noise value is less than a second threshold value that is greater than the first threshold value, a second noise value at the second frequency is determined by the electronic device and, in response to determining that the second noise value is less than the first threshold value, driving the drive electrodes at the second frequency. When the first noise value meets the second threshold value, a third frequency at which the drive electrodes are driven is identified by the electronic device, wherein the third frequency is not one of the first plurality of drive frequencies.

    Abstract translation: 一种方法包括识别驱动电子设备的触敏显示器的驱动电极的第一多个驱动频率，其中第一多个驱动频率包括第一频率和第二频率。 确定第一频率处的第一噪声值。 当第一噪声值满足第一阈值并且第一噪声值小于大于第一阈值的第二阈值时，第二频率处的第二噪声值由电子设备确定，并且响应于 确定所述第二噪声值小于所述第一阈值，以所述第二频率驱动所述驱动电极。 当第一噪声值满足第二阈值时，由电子设备识别驱动电极驱动的第三频率，其中第三频率不是第一多个驱动频率中的一个。

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