Inductive Touch Input
    7.
    发明申请

    公开(公告)号:US20180180450A1

    公开(公告)日:2018-06-28

    申请号:US15854744

    申请日:2017-12-26

    Inventor: Dongtai Liu

    Abstract: A touch-scroll apparatus can provide touch-scroll input/functionality, such as for a mobile communication device (as an example application). The touch-scroll apparatus includes a multi-coil sensor assembly including multiple sense inductor coils (for example, three). A sensor slot is formed in a portion of the device case (such as a device side-wall), defining a touch-scrolling surface/area at the exterior of the device. The sidewall slot is dimensioned to receive and position the touch-scrolling multi-coil sensor assembly relative to the touch-scrolling surface/area. Inductive sensor electronics is coupled to the multiple touch-scroll sense inductor coils to detect scrolling movement and direction based on signal output from the sensor inductor coil signals (such as changes in coil inductance), including for each a peak signal corresponding to maximum deflection of the touch-scrolling surface/area opposite the sense inductor coil. The touch-scrolling sensor assembly can be secured within the sensor slot with elastomeric pads.

    TOUCH SENSING APPARATUS WITH DUAL TOUCH SENSORS

    公开(公告)号:US20180081221A1

    公开(公告)日:2018-03-22

    申请号:US15708120

    申请日:2017-09-18

    Inventor: Dongtai Liu

    Abstract: A touch sensing apparatus for dual (adjacent) touch buttons (areas) defined on a touch surface (such as a sidewall of a mobile communications device). The apparatus includes first and second touch sensor assemblies, each including a support structure, a mounting structure to mount the touch sensor assembly to the back-side of the surface, and a sense inductor coil disposed on one of the support structure and the mounting structure. The first touch sensor assembly mounted to the back-side of the surface opposite the first touch area. The second touch sensor assembly mounted to the back-side of the surface opposite the second touch area. The touch sensor assembly can be constructed with the sense inductor coil disposed on the support structure, such that deflection of the respective touch area causes the touch surface to deflect toward the sense inductor coil, or with the sense inductor coil is disposed on the mounting structure, such that deflection of the respective touch area causes the touch surface and the sense coil inductor to deflect toward the support structure.

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