公开(公告)号：US20200221208A1

公开(公告)日：2020-07-09

申请号：US16238882

申请日：2019-01-03

Applicant: Google LLC

Inventor： Changzhan Gu ,  Jae-won Hwang

IPC: H04R1/10 ,  H02J7/02 ,  H02J50/10 ,  H02J7/00

Abstract: In some implementations, a headphone device includes an earpiece housing, a speaker in the earpiece housing configured to produce audio, and a wireless charging coil having a first portion that extends outside the earpiece housing and a second portion that extends within the earpiece housing. A battery charging circuit is coupled to the wireless charging coil, and the battery charging circuit is configured to charge a battery of the headphone device based on electrical current induced in the wireless charging coil.

公开(公告)号：US11171522B2

公开(公告)日：2021-11-09

申请号：US16393526

申请日：2019-04-24

Applicant: Google LLC

Inventor： Liang Jia ,  Qi Tian ,  Liyu Yang ,  Veera Venkata Siva Nagesh Polu ,  Srikanth Lakshmikanthan ,  Rahul Apte ,  Jae-won Hwang ,  Srenik Suresh Mehta

IPC: H02J50/10 ,  H02J50/90 ,  H02J7/00 ,  H02J7/02 ,  H02J7/04

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for improving wireless charging. In some implementations, an electronic device determines a power demand of the electronic device. The electronic device includes a wireless power receiver including a wireless power receiving coil configured to receive power through inductive coupling with a wireless charge. The electronic device determines an operating voltage or operating frequency for the wireless charger based on the power demand of the electronic device. The electronic device sends, to the wireless charger, data indicating the operating voltage or operating frequency for the wireless charger.

公开(公告)号：US20190356977A1

公开(公告)日：2019-11-21

申请号：US15980059

申请日：2018-05-15

Applicant: Google LLC

Inventor： Leng Ooi ,  Changzhan Gu ,  Jae-won Hwang

IPC: H04R1/10

Abstract: Methods, systems, and devices for enhanced digital headsets are disclosed. An enhanced USB-C headset includes a USB-C connector, a cable extending from the USB-C connector, an inline control box coupled to the USB-C connector through the cable, and a first earphone and a second earphone. The cable includes conductors for transmitting DC bus power, power return, and differential digital signals and extends at least one foot in length. The control box includes a single circuit board, with circuitry for managing digital communications, converting audio data, and providing output signals to drive analog speaker elements of the earphones.

公开(公告)号：US11342796B2

公开(公告)日：2022-05-24

申请号：US16125328

申请日：2018-09-07

Applicant: Google LLC

Inventor： Qi Tian ,  Veera Venkata Siva Nagesh Polu ,  Liang Jia ,  Liyu Yang ,  Jae-won Hwang ,  Rahul Apte ,  Srikanth Lakshmikanthan ,  Srenik Suresh Mehta ,  Robert Thomas Shone

IPC: H02J50/60 ,  H02J50/12 ,  H02J7/04 ,  H04B5/00 ,  H02J50/90

Abstract: Methods, systems, and techniques for safely controlling wireless charging in the presence of a foreign object are presented. A method includes determining a power difference between a power transmitted by a wireless charger and a power received by an electronic device, determining a level of misalignment of the electronic device with respect to the wireless charger; estimating an amount of power difference due to the level of misalignment of the electronic device with respect to the wireless charger, adjusting a power difference threshold for the wireless charger based on the estimated amount of power difference, and controlling operation of the wireless charger based on the power difference and the adjusted power difference threshold.

公开(公告)号：US20200343777A1

公开(公告)日：2020-10-29

申请号：US16393526

申请日：2019-04-24

Applicant: Google LLC

Inventor： Liang Jia ,  Qi Tian ,  Liyu Yang ,  Veera Venkata Siva Nagesh Polu ,  Srikanth Lakshmikanthan ,  Rahul Apte ,  Jae-won Hwang ,  Srenik Suresh Mehta

IPC: H02J50/90 ,  H02J7/04 ,  H02J7/02 ,  H02J50/10

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for improving wireless charging. In some implementations, an electronic device determines a power demand of the electronic device. The electronic device includes a wireless power receiver including a wireless power receiving coil configured to receive power through inductive coupling with a wireless charge. The electronic device determines an operating voltage or operating frequency for the wireless charger based on the power demand of the electronic device. The electronic device sends, to the wireless charger, data indicating the operating voltage or operating frequency for the wireless charger.

公开(公告)号：US20200083754A1

公开(公告)日：2020-03-12

申请号：US16125328

申请日：2018-09-07

Applicant: Google LLC

Inventor： Qi Tian ,  Veera Venkata Siva Nagesh Polu ,  Liang Jia ,  Liyu Yang ,  Jae-won Hwang ,  Rahul Apte ,  Srikanth Lakshmikanthan ,  Srenik Suresh Mehta ,  Robert Thomas Shone

IPC: H02J50/60 ,  H02J50/12 ,  H02J7/04 ,  H02J50/90 ,  H04B5/00

Abstract: Methods, systems, and techniques for safely controlling wireless charging in the presence of a foreign object are presented. A method includes determining a power difference between a power transmitted by a wireless charger and a power received by an electronic device, determining a level of misalignment of the electronic device with respect to the wireless charger; estimating an amount of power difference due to the level of misalignment of the electronic device with respect to the wireless charger, adjusting a power difference threshold for the wireless charger based on the estimated amount of power difference, and controlling operation of the wireless charger based on the power difference and the adjusted power difference threshold.

公开(公告)号：US10524039B2

公开(公告)日：2019-12-31

申请号：US15980059

申请日：2018-05-15

Applicant: Google LLC

Inventor： Leng Ooi ,  Changzhan Gu ,  Jae-won Hwang

IPC: H04R1/10

Abstract: Methods, systems, and devices for enhanced digital headsets are disclosed. An enhanced USB-C headset includes a USB-C connector, a cable extending from the USB-C connector, an inline control box coupled to the USB-C connector through the cable, and a first earphone and a second earphone. The cable includes conductors for transmitting DC bus power, power return, and differential digital signals and extends at least one foot in length. The control box includes a single circuit board, with circuitry for managing digital communications, converting audio data, and providing output signals to drive analog speaker elements of the earphones.