公开(公告)号：US20210004544A1

公开(公告)日：2021-01-07

申请号：US17030915

申请日：2020-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huaizhi ZHANG ,  Sunjie WANG ,  Bo HAN ,  Lang WANG ,  Mei JIAN ,  Junfeng GAO

IPC: G06K7/00 ,  G06K7/10

Abstract: This application discloses example radio frequency identification systems and example methods for constructing a relay network, a reader, and a repeater. One example radio frequency identification system includes a reader, a repeater, and a target tag. The reader can be configured to send a first signal to the repeater. The repeater can be configured to send an excitation signal to the target tag based on the first signal. The target tag can be configured to send a target backscatter signal based on excitation of the excitation signal, where the target backscatter signal carries electronic product code information. The reader can be further configured to receive the target backscatter signal and obtain the electronic product code information in the target backscatter signal.

公开(公告)号：US20230116044A1

公开(公告)日：2023-04-13

申请号：US17909623

申请日：2021-03-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo HAN

IPC: H04N23/667 ,  H04N23/63 ,  H04N23/69 ,  H04R3/00

Abstract: Embodiments of this application provide an audio processing method and a device. In a multi-channel video recording mode, a plurality of channels of video images and a plurality of channels of audio can be recorded simultaneously, and different audio can be played during video playback. A specific solution is as follows: After detecting an operation of opening a camera by a user, an electronic device displays a shooting preview interface, and then enters a multi-channel video recording mode. After detecting a shooting operation of the user, the electronic device displays a shooting interface, where the shooting interface includes a plurality of channels of video images. Then, the electronic device records the plurality of channels of video images, and records audio corresponding to each of the plurality of channels of video images based on a shooting angle of view corresponding to each channel of video image.

公开(公告)号：US20230162718A1

公开(公告)日：2023-05-25

申请号：US18157158

申请日：2023-01-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo HAN ,  Ling TANG ,  Fan FAN ,  Daihu SHI

IPC: G10K11/178 ,  G10L21/0232 ,  G06F3/16

CPC classification number: G10K11/17823 ,  G10L21/0232 ,  G06F3/165 ,  G10K11/17881 ,  G10K11/17825 ,  G10L2021/02082

Abstract: An echo filtering method, an electronic device, a computer-readable storage medium, and an echo filtering apparatus are disclosed. The electronic device includes M microphones and N speakers. M and N are integers greater than 1. The method includes: obtaining N speaker signals corresponding to the N speakers (302); obtaining M microphone signals corresponding to the M microphones (304); and performing at least direct sound filtering on the N speaker signals and the M microphone signals to obtain a target signal (306). By using this method, better echo filtering effect can be obtained.

公开(公告)号：US20180295020A1

公开(公告)日：2018-10-11

申请号：US16003652

申请日：2018-06-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Taofu MO ,  Bo HAN

IPC: H04L12/24 ,  H04L5/14 ,  H04W72/08 ,  H04W72/04 ,  H04W16/24

Abstract: Embodiments of the present disclosure provide a method and apparatus, and relate to the field of communications technologies. The method provided in the embodiments of the present disclosure is applied to a full-duplex system, and includes: dividing, by a base station, user equipments in a first cell into N user groups, where N is a positive integer greater than or equal to 2; and configuring, by the base station for user equipment in each of the N user groups, an uplink frequency band used for uplink transmission and a downlink frequency band used for downlink receiving, where the uplink frequency band is different from the downlink frequency band in a same user group, and the uplink frequency band and the downlink frequency band are frequency sub-bands of an operating frequency band of the full-duplex system. According to the embodiments of the present disclosure, interference between user equipments is reduced.

公开(公告)号：US20180156887A1

公开(公告)日：2018-06-07

申请号：US15557760

申请日：2016-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cunshou QIU ,  Hua MA ,  Qing CHANG ,  Bo HAN

IPC: G01S3/802 ,  H04R1/32 ,  H04R1/40

CPC classification number: G01S3/802 ,  G01S5/18 ,  H04R1/326 ,  H04R1/406 ,  H04R3/005 ,  H04R2430/20 ,  H04R2499/11 ,  H04R2499/15

Abstract: A directional recording method includes: generating an initial sound pickup beam by using a beam forming algorithm, where the initial sound pickup beam points towards the target acoustic source; recording an initial pointing direction of the initial sound pickup beam; and detecting that a direction towards which the recording device faces changes, and adjusting, according to the change of the direction towards which the recording device faces, the initial sound pickup beam to obtain a target sound pickup beam, where the target sound pickup beam points towards the target acoustic source. Compared with the prior art, according to the directional recording method and apparatus, and the recording device provided in the embodiments of the present invention, a pointing direction of a sound pickup beam can be adjusted according to a change of a direction towards which the recording device faces.