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公开(公告)号：US20230412961A1
公开(公告)日：2023-12-21
申请号：US18457124
申请日：2023-08-28
Applicant: Google LLC
CPC classification number: H04R1/1025 , H04R17/00 , H04R3/00
Abstract: This document describes improved driving circuits for piezoelectric speakers (piezos). In aspects, a charging case for a hearable device includes a piezo and a circuit for driving the piezo having a battery, an inductor, first and second switches, and a microcontroller. The microcontroller is configured to first toggle the first switch for a number of times to charge the piezoelectric speaker via the inductor to a target voltage level and second toggle the second switch to discharge and thus sound the piezo. In such aspects, the first toggling of the first switch and the second toggling of the second switch control a volume and frequency, respectively, of the sounding, improving audio quality and providing finder features to users. Further, charging the piezoelectric speaker via the inductor enables the inductor to be smaller, conserving space within and power consumption of the charging case, leading to improved battery life.
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12.发明授权公开(公告)号：US11812216B2
公开(公告)日：2023-11-07
申请号：US17673363
申请日：2022-02-16
Applicant: Google LLC
Inventor： Shengyin Ding , Gemin Li , Yao Ding , Jianmin Zhang , Guohua Sun
CPC classification number: H04R1/1075 , H01F7/02 , H04R1/1016
Abstract: The present disclosure provides for an arrangement of components within a hearable device, such as earbuds, to reduce H field coupling for E noise improvement. A battery is positioned above a magnet and speaker, such that the battery is not coaxially aligned with either the magnet or the speaker. An internal positive tab of a battery is positioned farthest from a speaker yoke, while an internal negative tab of the battery is closer to the speaker yoke. Magnetic flux poles of a contact magnet have different contributions for electric field coupling.
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公开(公告)号：US20230110268A1
公开(公告)日：2023-04-13
申请号：US17497018
申请日：2021-10-08
Applicant: Google LLC
Abstract: A high permeability metal (mu-metal) shield is placed in close proximity of a main logic board (MLB) of a wearable device, such as an earbud, to reduce eNoise. Radio frequency current flow induced by an antenna radiator will flow over the MLB and its associated ground plane, including the mu-metal shield. To reduce an impact of the mu-metal shield on antenna performance, a coating process is done on the mu-metal shield, by developing a thin layer of high conductivity, low permeability copper or silver on top of the mu-metal.
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公开(公告)号：US20230014566A1
公开(公告)日：2023-01-19
申请号：US17379421
申请日：2021-07-19
Applicant: Google LLC
Inventor： Yao Ding , Troy Edwards , Gemin Li
Abstract: A wearable audio device sized to fit within an ear of an user comprises an outer housing; a circuit board positioned within the outer housing; a battery having an anode and a cathode, the battery being connected to the circuit board; a speaker adjacent the battery; and an electromagnetic interference (“EMI”) shield tab coupled to the anode. The EMI shield tab may be configured to shield the speaker from EMI generated by the circuit board and to provide an electrical interconnection to the anode. The EMI shield tab may be comprised of a high magnetic flux permeable metal material
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公开(公告)号：US11522273B2
公开(公告)日：2022-12-06
申请号：US16130411
申请日：2018-09-13
Applicant: Google LLC
Inventor： Wenjing Su , Jiang Zhu , Maura Aranguren , Eric Dayringer , Troy Edwards , Trevor Hermosillo , Matthew Egan , Chi Kin Benjamin Leung , Yao Ding
IPC: H01Q1/12 , H01Q1/24 , H04B1/3827 , H04M1/03 , H04R5/033
Abstract: An antenna is provided for a wearable personal computing device, such as an earbud. The antenna integrates with other components of the wearable device, such as an input control. For example, the antenna may at least partially surround a portion of a touchpad input at a surface of the device that is exposed when the device is worn. In one example, the antenna shares a ground plane with the touchpad. In another example, the antenna includes two nested traces, wherein a first trace is connected to ground and a second trace is connected to an antenna feed.
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Patent Agency Ranking
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
Inventor： Thad Eugene Starner , Karissa A. Sawyer , Greg Ellis Priest-Dorman , Jonathan Moeller , Nidhi Rathi , Jianyi Liu , Yao Ding , Chi Kin Benjamin Leung
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.
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公开(公告)号：US20200091590A1
公开(公告)日：2020-03-19
申请号：US16130411
申请日：2018-09-13
Applicant: Google LLC
Inventor： Wenjing Su , Jiang Zhu , Maura Aranguren , Eric Dayringer , Troy Edwards , Trevor Hermosillo , Matthew Egan , Chi Kin Benjamin Leung , Yao Ding
IPC: H01Q1/24 , H04B1/3827 , H04M1/03 , H04R5/033 , G06F1/16
Abstract: An antenna is provided for a wearable personal computing device, such as an earbud. The antenna integrates with other components of the wearable device, such as an input control. For example, the antenna may at least partially surround a portion of a touchpad input at a surface of the device that is exposed when the device is worn. In one example, the antenna shares a ground plane with the touchpad. In another example, the antenna includes two nested traces, wherein a first trace is connected to ground and a second trace is connected to an antenna feed.
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公开(公告)号：US10541726B1
公开(公告)日：2020-01-21
申请号：US16025597
申请日：2018-07-02
Applicant: Google LLC
Abstract: A first device provides both power and data to a second device over a power line connection between the two devices. The first device includes a power line extending from a power supply, a ground line extending from a ground, a first impedance in the power line, and a second impedance in the ground line. A modulator comprised of a transistor and modulator impedance is between the first impedance and the second impedance, and a tank capacitor is between the power line and the ground line, outside the first impedance and second impedance. A comparator is coupled between the first and second impedance. A switch may be included to short out the first and second impedance, thereby enabling transmission of only power for period of time, and return to a mode of transmitting both data and power. The first device may also receive data from the second device over the power line connection.
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19.发明授权公开(公告)号：US12231839B2
公开(公告)日：2025-02-18
申请号：US18497656
申请日：2023-10-30
Applicant: Google LLC
Inventor： Shengyin Ding , Gemin Li , Yao Ding , Jianmin Zhang , Guohua Sun
Abstract: The present disclosure provides for an arrangement of components within a hearable device, such as earbuds, to reduce H field coupling for E noise improvement. A battery is positioned above a magnet and speaker, such that the battery is not coaxially aligned with either the magnet or the speaker. An internal positive tab of a battery is positioned farthest from a speaker yoke, while an internal negative tab of the battery is closer to the speaker yoke. Magnetic flux poles of a contact magnet have different contributions for electric field coupling.
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公开(公告)号：US20240175946A1
公开(公告)日：2024-05-30
申请号：US18431518
申请日：2024-02-02
Applicant: Google LLC
CPC classification number: G01R33/072 , G01R33/0011 , G01R33/0047 , H01F7/0294 , H05K5/0226
Abstract: This disclosure describes an extended closure sensor design for an electronic device. An electronic device (300) senses, with a magnetic sensor (306), an open or a closed position of the electronic device (300). A lid magnetic field is propagated through a ferromagnetic material (304) by a lid magnet (302) when a lid (310) or similar component of the electronic device (300) is in the closed position, thereby placing the lid magnetic field incident upon the magnetic sensor (306). In the open position, the lid magnetic field is materially absent and a bias magnet (308) causes a bias magnetic field to be incident upon the magnetic sensor (306).
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