公开(公告)号：US11489342B2

公开(公告)日：2022-11-01

申请号：US17040778

申请日：2018-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuangwei Li ,  Ke Ai ,  Tongjie Li ,  Jianzhong Zou

IPC: H02J7/00

Abstract: A charging method includes obtaining, by a charging device, a working status of a sensitive component in a terminal device, where the sensitive component interferes with a process in which the charging device charges the terminal device at a sensitive frequency, and the sensitive frequency is within a range of a charging frequency band of the charging device, determining, by the charging device, a safe charging parameter when the working status is an enabled state, where the safe charging parameter includes at least one of a safe charging frequency, a safe charging current, or a safe charging voltage, and charging, by the charging device, the terminal device using the safe charging parameter, where the sensitive component operates in a normal state when the wireless charging device charges the terminal device using the safe charging parameter.

公开(公告)号：US20210104844A1

公开(公告)日：2021-04-08

申请号：US16496814

申请日：2017-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tongjie Li ,  Ke Ai ,  Bei Fu

IPC: H01R13/6592 ,  H01R13/6598 ,  H01R13/66 ,  H01R31/06 ,  H02J7/00

Abstract: The present invention provides a method for designing USB floating with low electromagnetic interference, especially in a scenario in which a distance between a pin and a metal housing of a USB interface of a terminal device is increasingly small. A first plug and a second plug are connected by using a connection cable having a first shield layer and a second shield layer. The first shield layer and the second shield layer overlap and there is no electrical connection between the first shield layer and the second shield layer. One end of the first shield layer is connected to a metal housing of the first plug, and the other end is suspended. One end of the second shield layer is connected to a metal housing of the second plug, and the other end is suspended. In addition, a metal housing of a first socket and a metal housing of a second socket may be connected to a housing of the terminal device or a housing of an adapter by using a capacitive component, thereby helping the terminal device reduce a short circuit risk and radiation.

公开(公告)号：US10908735B2

公开(公告)日：2021-02-02

申请号：US16335371

申请日：2016-09-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianming Zhang ,  Ke Ai ,  Wenfeng Wang

IPC: G06F3/041

Abstract: An anti-interference method and apparatus for a touch panel relate to the communications field and improve accuracy of switching an operating frequency by the touch panel. The anti-interference method for the touch panel includes obtaining an operating frequency of a charging adapter and a jitter frequency of the charging adapter, and calculating, using a preset algorithm based on the operating frequency and the jitter frequency, a low-noise interval in which the touch panel is to operate such that the touch panel obtains the low-noise interval, and switches an operating frequency of the touch panel to a frequency in the low-noise interval when interference to the touch panel exceeds a preset range. The low-noise interval is a frequency interval in which the touch panel is to operate when the interference to the touch panel is within the preset range.

公开(公告)号：US11171454B2

公开(公告)日：2021-11-09

申请号：US16496814

申请日：2017-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tongjie Li ,  Ke Ai ,  Bei Fu

IPC: H01R13/6592 ,  H01R13/6598 ,  H01R13/66 ,  H01R31/06 ,  H02J7/00

Abstract: The present invention provides a method for designing USB floating with low electromagnetic interference, especially in a scenario in which a distance between a pin and a metal housing of a USB interface of a terminal device is increasingly small. A first plug and a second plug are connected by using a connection cable having a first shield layer and a second shield layer. The first shield layer and the second shield layer overlap and there is no electrical connection between the first shield layer and the second shield layer. One end of the first shield layer is connected to a metal housing of the first plug, and the other end is suspended. One end of the second shield layer is connected to a metal housing of the second plug, and the other end is suspended. In addition, a metal housing of a first socket and a metal housing of a second socket may be connected to a housing of the terminal device or a housing of an adapter by using a capacitive component, thereby helping the terminal device reduce a short circuit risk and radiation.

公开(公告)号：US20210006080A1

公开(公告)日：2021-01-07

申请号：US17040778

申请日：2018-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuangwei Li ,  Ke Ai ,  Tongjie Li ,  Jianzhong Zou

IPC: H02J7/00

Abstract: A charging method includes obtaining, by a charging device, a working status of a sensitive component in a terminal device, where the sensitive component interferes with a process in which the charging device charges the terminal device at a sensitive frequency, and the sensitive frequency is within a range of a charging frequency band of the charging device, determining, by the charging device, a safe charging parameter when the working status is an enabled state, where the safe charging parameter includes at least one of a safe charging frequency, a safe charging current, or a safe charging voltage, and charging, by the charging device, the terminal device using the safe charging parameter, where the sensitive component operates in a normal state when the wireless charging device charges the terminal device using the safe charging parameter.

公开(公告)号：US20190286277A1

公开(公告)日：2019-09-19

申请号：US16335371

申请日：2016-09-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianming Zhang ,  Ke Ai ,  Wenfeng Wang

IPC: G06F3/041

Abstract: An anti-interference method and apparatus for a touch panel relate to the communications field and improve accuracy of switching an operating frequency by the touch panel. The anti-interference method for the touch panel includes obtaining an operating frequency of a charging adapter and a jitter frequency of the charging adapter, and calculating, using a preset algorithm based on the operating frequency and the jitter frequency, a low-noise interval in which the touch panel is to operate such that the touch panel obtains the low-noise interval, and switches an operating frequency of the touch panel to a frequency in the low-noise interval when interference to the touch panel exceeds a preset range. The low-noise interval is a frequency interval in which the touch panel is to operate when the interference to the touch panel is within the preset range.