公开(公告)号：US20220109294A1

公开(公告)日：2022-04-07

申请号：US17552926

申请日：2021-12-16

Applicant: Google LLC

Inventor： Yao Ding ,  Hui Li

IPC: H02H3/08 ,  H02H1/00

Abstract: A short circuit protection circuit may comprise a first configuration channel line extending from a first connector, a first resistor connected to the first configuration channel line; a voltage divider connected to a junction point on the first configuration channel line, the voltage divider comprising a second resistor and a thermistor, and a field effect transistor (FET) comprising a source, gate, and drain. The thermistor may be connected to a ground line. The drain of the FET may be connected to the first resistor, the source of the FET may be connected to the ground line, and the gate of the FET may be connected to a second junction point between the second resistor and thermistor of the voltage divider.

公开(公告)号：US11152935B2

公开(公告)日：2021-10-19

申请号：US16115022

申请日：2018-08-28

Applicant: Google LLC

Inventor： Yao Ding ,  Guang Xie

IPC: H03K17/20 ,  H03K17/22

Abstract: The present disclosure describes a system and method for resetting firmware in an electronic accessory, such as a wearable electronic device, without a physical reset button on the accessory. A secondary device, such as a case for the accessory, can serve as a power source that initiates the reset. The reset may be manually initiated, for example by a user pressing a button, or automatically initiated, such as by the secondary device detecting that the accessory is unresponsive. The secondary device sends a reset command to the electronic accessory through a power line connection. The power line connection may be made, for example, upon contact of the accessory with the secondary device. In some examples, the reset command may be an elevated power level. Upon receiving the reset command through the power line, the accessory completes the reset.

公开(公告)号：US20210249892A1

公开(公告)日：2021-08-12

申请号：US17245462

申请日：2021-04-30

Applicant: Google LLC

Inventor： Yao Ding ,  Trevor Hermosillo ,  Maksim Shmukler ,  Chi Kin Benjamin Leung

IPC: H02J7/34 ,  H04R1/10

Abstract: A first electronic device, electronically coupled to a second device for supplying a charge to the second electronic device, tracks the voltage requirements of the second device and dynamically adjusts its output voltage upwards or downwards to match such requirements. The second electronic device may provide feedback to the first electronic device through a feedback loop. The feedback may include an indication of the voltage requirements and/or instructions for adjusting the voltage output of the first electronic device. The second device may be, for example, a wearable audio device, while the first device is a case for the wearable audio device.

公开(公告)号：US20200227954A1

公开(公告)日：2020-07-16

申请号：US16248931

申请日：2019-01-16

Applicant: Google LLC

Inventor： Yao Ding ,  Hui Li

IPC: H02J50/90 ,  H02J7/02 ,  H02J50/10 ,  H01F38/14 ,  H01F27/24

Abstract: In some implementations, a wireless charger includes a power transmission coil, a magnet sensor, an electromagnet, and control circuitry. The power transmission coil can wirelessly provide power at a charging area of the wireless charger through inductive coupling. The magnet sensor is arranged to detect the presence of a magnet at the charging area. The electromagnet can generate a magnetic field in the charging area when the electromagnet is energized. The control circuitry is able to selectively energize the electromagnet based on signals generated using the magnet sensor.

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

Inventor： Yao Ding ,  Jianyi Liu ,  Yuxin Yang ,  David Sparks ,  Nidhi Rathi ,  Chi Kin Benjamin Leung

IPC: H04R1/10 ,  G01V3/08

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.