Detecting Twist Input with an Interactive Cord

    公开(公告)号:US20220179510A1

    公开(公告)日:2022-06-09

    申请号:US17652469

    申请日:2022-02-24

    Applicant: Google LLC

    Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.

    Detecting twist input with an interactive cord

    公开(公告)号:US11294511B2

    公开(公告)日:2022-04-05

    申请号:US16549358

    申请日:2019-08-23

    Applicant: Google LLC

    Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.

    Sensor cord construction to prevent capacitance variation

    公开(公告)号:US10200774B1

    公开(公告)日:2019-02-05

    申请号:US15827045

    申请日:2017-11-30

    Applicant: Google LLC

    Abstract: A sensor cord construction to prevent capacitance variation is described herein. A sensor may be connected to a controller via a cord that includes a first cable and a second cable. The first cable includes first shield wires that are twisted around the first cable in a first direction, and the second cable includes second shield wires that are twisted around the second cable in a second direction that is opposite the first direction. When the cord is twisted, one of the first or second cables may provide a positive capacitance variation, while the other of the first or second cables may provide a negative capacitance variation in an amount that is directly proportional to the positive capacitance variation. Thus, the controller detects a minimum capacitance variation, when the cord is twisted, due to the capacitance variation of the first cable and the second cable canceling each other out.

    On head detection by capacitive sensing BCT

    公开(公告)号:US09998817B1

    公开(公告)日:2018-06-12

    申请号:US14959239

    申请日:2015-12-04

    Applicant: Google LLC

    Inventor: Jianyi Liu

    CPC classification number: H04R1/1091 H04R2460/13

    Abstract: The present application describes on-head detection by a capacitive sensing bone conduction transducer (BCT) system and applications thereof. An example apparatus includes a wearable computing device comprising: (1) the BCT comprising a transducer coupled to a BCT frame, wherein (a) the BCT frame couples the BCT to a component of the wearable computing device, (b) at least a portion of the BCT frame is conductive, wherein the conductive portion of the BCT frame is arranged to capacitively couple the BCT to a wearer when the wearable computing device is worn, and (c) the BCT is configured to receive and be driven by an audio signal; (2) a capacitive sensor controller; and (3) at least one connective component that further couples the conductive portion of the BCT frame to the capacitive sensor controller.

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