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    • 6. 发明申请
    • CAPACITIVE SENSOR COUPLING CORRECTION
    • 电容传感器耦合校正
    • WO2010009057A2
    • 2010-01-21
    • PCT/US2009/050427
    • 2009-07-13
    • APPLE INC.ELIAS, John, GreerHOTELLING, Steven, Porter
    • ELIAS, John, GreerHOTELLING, Steven, Porter
    • G06F3/041G06F3/044
    • G06F3/0418G06F3/044H03K17/9622H03K2217/960705
    • Methods and apparatus for normalizing the effects of the changes to the parasitic capacitive coupling that can occur in touch sensor panels so as to reduce or eliminate the appearance of erroneous touch events. In some embodiments, at some time prior to regular device use (e.g. during factory calibration), a conductive sheet is initially positioned so as to entirely cover a touch surface of a touch sensor panel. A set of sensed signals may be determined upon driving the drive lines and sensing the sense lines of the panel. Correctional coefficients may then be calculated based in part upon the difference between a sensed signal and an expected signal. The correctional coefficients may then be stored in the device and used to determine signal corrections for a set of measured signals during normal operation.
    • 对接触传感器面板中可能发生的寄生电容耦合的变化的影响进行归一化的方法和装置,以便减少或消除错误触摸事件的出现。 在一些实施例中,在常规设备使用之前的某个时间(例如在工厂校准期间),导电片最初被定位成完全覆盖触摸传感器面板的触摸表面。 可以在驱动驱动线并感测面板的感测线时确定一组感测信号。 然后可以部分地基于感测信号和期望信号之间的差异来计算校正系数。 校正系数然后可以存储在设备中,并且用于在正常操作期间确定一组测量信号的信号校正。
    • 10. 发明申请
    • NOISE SUPPRESSION CIRCUIT FOR POWER ADAPTER
    • 用于电源适配器的噪声抑制电路
    • WO2013062686A3
    • 2013-08-29
    • PCT/US2012055657
    • 2012-09-14
    • APPLE INCRICHARDS PETER WHOTELLING STEVEN PORTER
    • RICHARDS PETER WHOTELLING STEVEN PORTER
    • H02M1/44
    • H02M1/44
    • A noise suppression circuit for a power adapter is disclosed. The noise suppression circuit can reduce or eliminate adapter-induced noise that could interfere with an electronic device powered by the adapter. In one example, the noise suppression circuit can include an active circuit to detect and attenuate or cancel the induced noise. In another example, the noise suppression circuit can include an RLC circuit in parallel with the adapter choke to suppress the induced noise at the operating frequencies of the powered electronic device. In still another example, the noise suppression circuit can include a modified adapter Y capacitor connection so as to bypass the adapter choke, thereby reducing or eliminating the choke's induced noise.
    • 公开了一种用于电源适配器的噪声抑制电路。 噪声抑制电路可以减少或消除可能干扰由适配器供电的电子设备的适配器引起的噪声。 在一个示例中,噪声抑制电路可以包括用于检测和衰减或消除感应噪声的有源电路。 在另一示例中,噪声抑制电路可以包括与适配器扼流圈并联的RLC电路,以抑制在动力电子设备的工作频率处的感应噪声。 在又一示例中,噪声抑制电路可以包括修改的适配器Y电容器连接,以绕过适配器扼流圈,从而减少或消除扼流圈的感应噪声。