Force Sensing of Inputs Through Strain Analysis

    公开(公告)号:US20180217708A1

    公开(公告)日:2018-08-02

    申请号:US15933113

    申请日:2018-03-22

    Applicant: Apple Inc.

    Abstract: An electronic device has a force sensor that determines a measure of applied force from a user contacting a cover glass of the device. In one embodiment, a frame at least partially encloses an interior of the electronic device and has an open end. A cover glass covers the open end of the frame and is movably connected to the frame to allow movement of the cover glass in response to one or more forces applied to an external surface of the cover glass. A plurality of strain probes is positioned under the cover glass, between the cover glass and the frame, and is arranged to output a plurality of strain signals response to the one or more forces applied to the cover glass. A force processing module is configured to at least calculate an amount of force applied to the cover glass based on the plurality of strain signals.

    Linear Actuator
    23.
    发明申请
    Linear Actuator 审中-公开
    线性执行器

    公开(公告)号:US20160172953A1

    公开(公告)日:2016-06-16

    申请号:US15046194

    申请日:2016-02-17

    Applicant: Apple Inc.

    Abstract: Embodiments described herein may take the form of an electromagnetic actuator that produces a haptic output during operation. Generally, an electromagnetic coil is wrapped around a central magnet array. A shaft passes through the central magnet array, such that the central array may move along the shaft when the proper force is applied. When a current passes through the electromagnetic coil, the coil generates a magnetic field. The coil is stationary with respect to a housing of the actuator, while the central magnet array may move along the shaft within the housing. Titus, excitation of the coil exerts a force on the central magnet array, which moves in response to that force. The direction of the current through the coil determines the direction of the magnetic field and thus the motion of the central magnet array.

    Abstract translation: 本文描述的实施例可以采取在操作期间产生触觉输出的电磁致动器的形式。 通常,电磁线圈缠绕在中心磁体阵列周围。 轴通过中心磁体阵列,使得当施加适当的力时,中心阵列可以沿着轴移动。 当电流通过电磁线圈时,线圈产生磁场。 线圈相对于致动器的壳体是静止的,而中心磁体阵列可以沿壳体内的轴移动。 Titus,线圈的激励对中心磁体阵列施加力,响应于该力而移动。 通过线圈的电流的方向确定磁场的方向,从而确定中心磁体阵列的运动。

    FORCE SENSING SWITCH
    27.
    发明申请
    FORCE SENSING SWITCH 审中-公开
    感应开关

    公开(公告)号:US20160358737A1

    公开(公告)日:2016-12-08

    申请号:US14913933

    申请日:2014-08-22

    Applicant: APPLE INC.

    Abstract: A force sensing switch for use in an electronic device can include one or more dome switches disposed over a top surface of a deflectable beam. One or more strain gauges can be disposed over at least one surface of the deflectable beam. An electronic device that includes at least one force sensing switch can further include a processing device operatively connected to the one or more strain gauges. Alternatively or additionally, an electrode can be disposed under a bottom surface of the deflectable beam and a capacitance measured between the bottom surface and the electrode.

    Abstract translation: 用于电子设备的力感测开关可以包括设置在可偏转光束的顶表面上方的一个或多个圆顶开关。 一个或多个应变计可以设置在可偏转光束的至少一个表面上。 包括至少一个力感测开关的电子设备还可以包括可操作地连接到所述一个或多个应变计的处理装置。 或者或另外,电极可以设置在可偏转光束的底表面下方,并且在底表面和电极之间测量的电容。

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