公开(公告)号：US20130121352A1

公开(公告)日：2013-05-16

申请号：US13735858

申请日：2013-01-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinyu SHEN ,  Jianmei ZHANG ,  Congqi LI ,  Tianhai CHANG ,  Hao LIU ,  Zhiguo LIU

IPC: H04J3/06

CPC classification number: H04J3/0602 ,  H04J3/0667 ,  H04J14/0201

Abstract: A method and a device for time synchronization are disclosed according to the embodiments of the present invention. The method includes: selecting, by a slave device, a port of a single-fiber bi-directional line as a synchronization port of a 1588 clock protocol; specifying a work mode of the synchronization port; exchanging a 1588 clock synchronization packet with a master device through the synchronization port according to the work mode; acquiring transmission time information and restore a system clock according to the 1588 clock synchronization packet; and adjusting the system clock according to the work mode and the transmission time information. The device includes: a line processing module, a clock recovery module and a clock adjustment module. Through the method and the device, zero-error time synchronization is implemented; and in the case of unfixed path delay, the time synchronization can also be implemented.

Abstract translation: 根据本发明的实施例公开了一种用于时间同步的方法和装置。 该方法包括：由从设备选择单光纤双向线路的端口作为1588时钟协议的同步端口; 指定同步端口的工作模式; 根据工作模式通过同步端口与主设备交换1588时钟同步报文; 根据1588时钟同步包获取传输时间信息并恢复系统时钟; 并根据工作模式和传输时间信息调整系统时钟。 该设备包括：线路处理模块，时钟恢复模块和时钟调整模块。 通过该方法和设备，实现零错误时间同步; 并且在非固定路径延迟的情况下，也可以实现时间同步。

公开(公告)号：US20240038238A1

公开(公告)日：2024-02-01

申请号：US18020851

申请日：2021-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei QIN ,  Lele ZHANG ,  Hao LIU ,  Yuewan LU

IPC: G10L15/25 ,  G06V10/82 ,  G10L15/02 ,  G10L25/24 ,  G10L15/16 ,  G06V40/16 ,  G06T7/50 ,  G06V10/30 ,  G06V10/26 ,  G06V10/80

CPC classification number: G10L15/25 ,  G06V10/82 ,  G10L15/02 ,  G10L25/24 ,  G10L15/16 ,  G06V40/171 ,  G06T7/50 ,  G06V10/30 ,  G06V10/26 ,  G06V10/806 ,  G06T2207/30201 ,  G06T2207/10028 ,  G06T2207/20084

Abstract: Embodiments of this application provide a speech recognition method. The speech recognition method includes: obtaining a facial depth image and a to-be-recognized voice of a user, where the facial depth image is an image collected by using a depth camera; recognizing a mouth shape feature from the facial depth image, and recognizing a voice feature from a to-be-recognized audio; and fusing the voice feature and the mouth shape feature into an audio-video feature, and recognizing, based on the audio-video feature, a voice uttered by the user.

公开(公告)号：US20200374447A1

公开(公告)日：2020-11-26

申请号：US16627636

申请日：2017-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Henghui LU ,  Hao LIU ,  Wenmei GAO

IPC: H04N5/235 ,  H04N5/225 ,  G06T5/00 ,  G06T7/90

Abstract: A terminal device calibrates a to-be-detected image based on a light source color temperature and scene brightness that are obtained during imaging of the to-be-detected image and based on a preset reference color card image set to restore a real color of the to-be-detected image to a greatest extent.

公开(公告)号：US20190324717A1

公开(公告)日：2019-10-24

申请号：US16474596

申请日：2016-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenyang ZHANG ,  Hao LIU ,  Xinggang GU

IPC: G06F3/16 ,  G06F3/0482 ,  G06F3/0484

Abstract: Embodiments of the present invention relate to a multimedia data playing method and a terminal device. The method includes: obtaining, by a terminal device, a first sound effect plug-in, where the first sound effect plug-in corresponds to a first sound effect, and the terminal device includes a first application and a second application that are used to play multimedia data; receiving, by the terminal device, a first instruction used to indicate that the user selects the first sound effect option; wherein the first sound effect option is an option corresponding to the first sound effect; when first multimedia data is to be played by the first application or the second application, processing, by the terminal device, the first multimedia data by using the first sound effect plug-in according to the first instruction, to play the first multimedia data with the first sound effect.

公开(公告)号：US20180123687A1

公开(公告)日：2018-05-03

申请号：US15830792

申请日：2017-12-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tianhai CHANG ,  Rui HE ,  Hao LIU

IPC: H04B10/071 ,  H04B10/077 ,  H04J14/08 ,  H04B10/25

Abstract: An optical fiber status detection method includes: alternately sending, by a first station, an optical time domain reflectometer (OTDR) pulse and optical supervisory channel (OSC) data to a second station on a same channel, where the second station is a neighboring station of the first station; and receiving, by the first station, reflection light returned by the OTDR pulse by using an optical fiber between the first station and the second station, and obtaining an OTDR probe value according to the reflection light.