Rotation detection for ring-shaped user input member of smart-home device

    公开(公告)号:US10203126B2

    公开(公告)日:2019-02-12

    申请号:US14836631

    申请日:2015-08-26

    Applicant: Google LLC

    Abstract: According to one embodiment, a thermostat includes a main body, a rotatable input component that is rotatably coupled with the main body, and a rotation detection system that is configured to sense user rotation of the rotatable input component. The rotatable input component is configured to be rotated by a user to enable the user to provide input to the thermostat. The rotation detection system includes a magnetic component that is positioned on an inner surface of the rotatable input component and that is magnetized so as to have a plurality of alternating north and south magnetic regions. The rotation detection system also includes a sensor that is positioned adjacent the magnetic component. The sensor is configured to detect polarity changes as the rotatable input component and magnetic component are rotated relative to the sensor.

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