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    • 1. 发明申请
    • EQUALIZING PARASITIC CAPACITANCE EFFECTS IN TOUCH SCREENS
    • 在触摸屏中均衡平衡电容效应
    • WO2011127442A3
    • 2011-12-29
    • PCT/US2011031839
    • 2011-04-08
    • APPLE INCCHANG SHIH CHANGHOTELLING STEVEN PORTERYU CHENG HO
    • CHANG SHIH CHANGHOTELLING STEVEN PORTERYU CHENG HO
    • G06F3/041G06F3/044
    • G06F3/044G06F3/0412G06F2203/04111
    • Reduction of the effects of differences in parasitic capacitances in touch screens is provided. A touch screen can include multiple display pixels with stackups that each include a first element and a second element. For example, the first element can be a common electrode, and the second element can be a data line. The display pixels can include a first display pixel including a third element connected to the first element, and the third element can contribute to a first parasitic capacitance between the first and second elements of the first display pixel, for example, by overlapping with the second element. The touch screen can also include a second display pixel lacking the third element. The second display pixel can include a second parasitic capacitance between the first and second elements of the second display pixel. The first and second parasitic capacitances can be substantially equal, for example.
    • 提供了减少触摸屏中寄生电容差异的影响。 触摸屏可以包括具有堆叠的多个显示像素,每个显示像素包括第一元素和第二元素。 例如,第一元件可以是公共电极,第二元件可以是数据线。 显示像素可以包括包括连接到第一元件的第三元件的第一显示像素,并且第三元件可以有助于第一显示像素的第一和第二元素之间的第一寄生电容,例如通过与第二元件重叠 元件。 触摸屏还可以包括缺少第三元素的第二显示像素。 第二显示像素可以包括第二显示像素的第一和第二元素之间的第二寄生电容。 例如,第一和第二寄生电容可以基本上相等。
    • 8. 发明申请
    • IMPROVED TOUCH DETECTION FOR TOUCH INPUT DEVICES
    • 用于触摸输入设备的改进的触摸检测
    • WO2010036651A3
    • 2011-06-23
    • PCT/US2009057853
    • 2009-09-22
    • APPLE INCGRUNTHANER MARTIN PAULHOTELLING STEVEN PORTER
    • GRUNTHANER MARTIN PAULHOTELLING STEVEN PORTER
    • G06F3/044
    • G06F3/0418G06F3/044
    • Methods and apparatus for correcting electrical noise coupling from a liquid crystal module to a plurality of sense elements disposed within a touch sensor panel, and for reducing errors in touch detection algorithms. Erroneous signal values detected by the sense elements may be corrected by utilizing a set of reference elements for detecting noise common to both the sense elements and the reference elements, and a correction module for effectively subtracting out the noise from the sensed values. Errors in touch detection algorithms may be reduced by providing a more uniform spacing between successive sense elements. In some embodiments, one or more dummy ground elements may be inserted between adjacent sense elements in order to reduce signal interference.
    • 用于校正从液晶模块到设置在触摸传感器面板内的多个感测元件的电噪声耦合的方法和装置,并且用于减少触摸检测算法中的误差。 可以通过利用一组用于检测感测元件和参考元件两者共同的噪声的参考元件来校正由感测元件检测到的错误信号值,以及用于从感测值有效地减去噪声的校正模块来校正。 可以通过在连续的感测元件之间提供更均匀的间隔来减少触摸检测算法中的错误。 在一些实施例中,可以在相邻感测元件之间插入一个或多个虚拟接地元件,以便减少信号干扰。
    • 9. 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。