公开(公告)号：US20220017014A1

公开(公告)日：2022-01-20

申请号：US17489112

申请日：2021-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanshan He ,  Wei Huang ,  Wenkang Xu ,  Junhao Zhang

IPC: B60R1/072 ,  G06T7/70 ,  G06F3/01 ,  G06T7/11 ,  G06K9/00

Abstract: An adaptive rearview mirror adjustment method includes obtaining a spatial position of a human eye of a driver of a current vehicle and a spatial position of a target rearview mirror, obtaining a horizontal field of view of the driver in the target rearview mirror based on the spatial position of the human eye of the driver and a spatial position of a target rearview mirror, obtaining a next-vehicle image, obtaining a first auxiliary angle of a target next vehicle based on the next-vehicle image, calculating a second auxiliary angle based on the horizontal field of view, the spatial position of the human eye, and the position of the target rearview mirror, obtaining a horizontal adjustment angle of the target rearview mirror based on the first auxiliary angle and the second auxiliary angle, and adjusting a horizontal angle of the target rearview mirror based on the horizontal adjustment angle.

公开(公告)号：US20220011132A1

公开(公告)日：2022-01-13

申请号：US17486335

申请日：2021-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chengcheng Jia ,  Lei Yang ,  Hai Yu ,  Wei Huang

IPC: G01C21/36 ,  G01C21/34 ,  B60W40/08 ,  B60W40/04 ,  B60W50/14 ,  B60Q9/00 ,  G06N20/00

Abstract: The disclosure relates to technology for a navigation system that enhances the safety of drivers using fatigue detection mapping. The navigation system accesses data sources storing map data a route for drivers of one or more first vehicles. Based on the map data, a personalized fatigue map for a driver of a second vehicle is generated based on the map data. The personalized fatigue map displays predicted driver fatigue of the driver of the second vehicle on the route. Drivers in the first and second vehicles are monitored to detect driver fatigue and a level of the driver fatigue is measured according to a calculated fatigue score. When driver fatigue is detected, a recommendation is output to the driver of the second vehicle that is based on the level of the driver fatigue. The personalized fatigue map is updated to reflect the recommendation.

公开(公告)号：US11165504B2

公开(公告)日：2021-11-02

申请号：US16968366

申请日：2019-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Huang ,  Ping Fang

IPC: H04B10/516 ,  G06F7/58 ,  H04B10/116 ,  H04B10/40

Abstract: Embodiments of this application provide a wireless optical communication method and a communications apparatus, and relate to the field of mobile communications technologies. The method includes: receiving a data frame sent by a second device; obtaining coded symbols, lengths of source symbols, a quantity of source symbols, degree information of the source symbols, and index information of the source symbols based on the data frame, where the degree information of the source symbols indicates a quantity of source symbols included in each source symbol group that participates in coding processing, and the index information of the source symbols indicates indexes of the source symbols included in each source symbol group that participates in coding processing; determining a mapping relationship between the source symbols and the coded symbols based on the lengths of the source symbols, the quantity of source symbols, the degree information of the source symbols, and the index information of the source symbols; and determining the source symbols based on the mapping relationship, the coded symbols, and a preset rateless decoding algorithm. According to this application, bit rate adaptation can be implemented based on a dynamic channel at a VLC physical layer.

公开(公告)号：US09853664B2

公开(公告)日：2017-12-26

申请号：US15382030

申请日：2016-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingwen Li ,  Wei Huang ,  Siqing Ye ,  Jinming Wang

IPC: H04B1/04 ,  H03F3/19 ,  H03F3/24 ,  H03F3/21

CPC classification number: H04B1/0475 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451 ,  H03F2203/21142 ,  H04B2001/0425

Abstract: A apparatus for radio frequency power amplification, a radio frequency power amplification method, a transmitter, and a base station that can reduce nonlinear signal distortion factors are disclosed. The radio frequency power amplification system includes: a radio frequency signal generation circuit, configured to process a baseband digital signal, to obtain an original radio frequency signal; a radio frequency signal processing circuit, configured to process the original radio frequency signal, to obtain N processed radio frequency signals, where N is greater than or equal to 2; a power amplifier, configured to perform power amplification on each of the N processed radio frequency signals, to obtain N amplified radio frequency signals; and a combiner, configured to combine the N amplified radio frequency signals.

公开(公告)号：US20170310285A1

公开(公告)日：2017-10-26

申请号：US15645579

申请日：2017-07-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Huang ,  Xiang Feng

IPC: H03F1/32 ,  H03F1/02 ,  H03F3/19 ,  H03F3/24 ,  H04B1/02

CPC classification number: H03F1/3247 ,  H03F1/02 ,  H03F1/3241 ,  H03F3/19 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/321 ,  H03F2200/451 ,  H03F2200/462 ,  H03F2200/465 ,  H04B1/02

Abstract: The application relates to the field of communications technologies, and disclose a signal amplification processing method and apparatus. The method includes setting multiple groups of parameter values for a signal decomposition parameter group, separately performing signal amplification processing based on each group of parameter values, obtaining a power amplification efficiency corresponding to each group of parameter values, obtaining a group of parameter values corresponding to a maximum power amplification efficiency in the power amplification efficiency corresponding to each group of parameter values, and setting the group of parameter values corresponding to the maximum power amplification efficiency as parameter values of the signal decomposition parameter group. Thus, the power amplification efficiency may be improved.

公开(公告)号：US20170302233A1

公开(公告)日：2017-10-19

申请号：US15581823

申请日：2017-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Huang

IPC: H03F1/32 ,  H03F3/189 ,  G06F17/10 ,  H03F3/20

CPC classification number: H03F1/3247 ,  G06F17/10 ,  G06F17/17 ,  H03F1/3258 ,  H03F3/189 ,  H03F3/19 ,  H03F3/20 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: A curve fitting circuit, an analog predistorter, and a radio frequency signal transmitter are disclosed. Each segmentation processing circuit in the curve fitting circuit generates a to-be-processed signal according to a intercepted part of a received signal, and generates q output signals according to the to-be-processed signal. Parts intercepted by different segmentation processing circuits are not exactly the same. Each first adder circuit in the curve fitting circuit receives one signal in the q output signals of each segmentation processing circuit, and obtains one output signal of the curve fitting circuit according to a sum of received n signals.

公开(公告)号：US12192586B2

公开(公告)日：2025-01-07

申请号：US17708876

申请日：2022-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenkang Xu ,  Wei Huang ,  Junhao Zhang ,  Xiaolin Huang

IPC: H04N21/4788 ,  G06T7/40 ,  G06T19/20 ,  G06V10/143 ,  G06V10/56 ,  G06V10/82 ,  G06V20/59 ,  G06V40/16 ,  H04N7/15 ,  G06V20/58

Abstract: A method for presenting a face in a video call includes: obtaining a key feature point of a facial expression of a user based on a face image of the user; driving a three-dimensional (3D) head image of the user by using the key feature point of the facial expression of the user, to obtain a target 3D avatar of the user, where the target 3D avatar of the user has an expression of the user; rotating the target 3D avatar based on a preset presentation angle, to obtain a target 3D avatar at the preset presentation angle; and transmitting the target 3D avatar at the preset presentation angle to a peer video call device. A user can see a 3D avatar that is of a user and that is at a preset presentation angle in real time.

公开(公告)号：US11606288B2

公开(公告)日：2023-03-14

申请号：US17113555

申请日：2020-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Huang ,  Yongjian Hu

IPC: H04L45/50 ,  H04L12/46 ,  H04L45/00 ,  H04L45/28

Abstract: This application provides a communication method and a communications apparatus. The method can include performing extension based on an existing operation, administration, and maintenance (OAM) packet after an intermediate node in a path of a segment routing traffic engineering (SR-TE) tunnel senses a bit error fault, to support a bit error switching function. That is, the method can include adding, to the OAM packet, identification information used to identify that signal degradation occurs in the SR-TE tunnel. As a result, it is ensured that the SR-TE tunnel supports the bit error switching function of the intermediate node, and a customer service can be effectively prevented from being damaged.

公开(公告)号：US20220176912A1

公开(公告)日：2022-06-09

申请号：US17678334

申请日：2022-02-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junhao Zhang ,  Gailiang Wang ,  Wei Huang ,  Wenkang Xu ,  Xiaolin Huang

IPC: B60S1/02 ,  G06V10/56 ,  G06V20/56

Abstract: This application provides an automatic vehicle window cleaning method and apparatus, used to detect a foreign object on a vehicle window based on a value of a pixel in a vehicle window image, and perform automatic cleaning. The method includes: obtaining a vehicle window image; determining a dark channel image corresponding to a single frame of vehicle window image; further determining, based on a quantity of pixels whose gray values exceed a preset gray threshold in the dark channel image and/or definition of the dark channel image, that a first-type foreign object exists on a vehicle window; and/or determining, based on RGB values of pixels in i consecutive frames of vehicle window images, that a second-type foreign object exists on the vehicle window; and controlling a cleaning tool to remove a foreign object. The foreign object includes the first-type foreign object and/or the second-type foreign object.

公开(公告)号：US20220173502A1

公开(公告)日：2022-06-02

申请号：US17645806

申请日：2021-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chulmin Han ,  Wee Kian Toh ,  Wei Huang ,  Hongwei Liu

IPC: H01Q1/24 ,  H01Q5/371 ,  H01Q5/35 ,  H01Q13/10 ,  H01Q5/50 ,  H01Q1/48 ,  H01Q13/18 ,  H04B7/0404 ,  H04B7/0413

Abstract: An apparatus and associated method are provided involving a housing having a periphery configured to operate as a second antenna, a third antenna, and a fourth antenna. The periphery includes a top wall having a first slot formed therein, a first side wall having a second slot formed therein, and a second side wall having a third slot formed therein. The top wall is arranged between the first side wall and the second side wall, and a top portion of the periphery is defined between the second slot and the third slot. The top portion is divided into a first top side portion and a second top side portion via the first slot. Further, the first top side portion operates as the second antenna, and the second top side portion operates as both the third antenna and the fourth antenna.