公开(公告)号：US11310489B2

公开(公告)日：2022-04-19

申请号：US17067645

申请日：2020-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Xiong ,  Youqing Yang ,  Yihong Huang

IPC: H04N7/12 ,  H04N17/04 ,  H04N21/44 ,  H04N19/169 ,  H04N19/114 ,  H04N19/154 ,  H04N17/00

Abstract: The present invention discloses a method, an apparatus, and a system for implementing video quality assessment. When video quality is assessed, a proportion of a damaged data caused by packet loss in a video frame in which the damaged data is located is considered, and other factors are also considered, such as a position of the damaged data in the video frame and impact of a scene in which the video frame is located on the video frame or a video frame located after the video frame. Therefore, accuracy of quality assessment is higher.

公开(公告)号：US10560382B2

公开(公告)日：2020-02-11

申请号：US15625638

申请日：2017-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jin Li ,  Feng Li ,  Yihong Huang

IPC: H04L12/801 ,  H04L29/06

Abstract: A data transmission method and an apparatus are provided. The data transmission method in the present invention includes: determining, by a first device and according to data stream information, whether a data transfer protocol TCP parameter in a data stream corresponding to the data stream information needs to be modified, where the data stream information includes at least one of the following information: information about the first device, information about a second device, service information, or network status information; if determining that the TCP parameter needs to be modified, modifying, by the first device, the TCP parameter, to obtain a modified TCP parameter; and generating, by the first device, a modification result of the TCP parameter.

公开(公告)号：US11265601B2

公开(公告)日：2022-03-01

申请号：US16931938

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Xiong ,  Li Xue ,  Yihong Huang ,  Youqing Yang

IPC: H04N21/442 ,  H04N21/6437 ,  H04N17/00 ,  H04N21/44 ,  H04N21/647

Abstract: A video quality assessment method includes obtaining a video quality assessment parameter of a to-be-assessed video, where the video quality assessment parameter of the to-be-assessed video includes an average packet loss gap of the to-be-assessed video, determining packet loss dispersion of the to-be-assessed video based on the video quality assessment parameter of the to-be-assessed video, and determining quality of the to-be-assessed video based on a packet loss rate of the to-be-assessed video, an average consecutive packet loss length of the to-be-assessed video, the packet loss dispersion of the to-be-assessed video, and attribute information of the to-be-assessed video.

公开(公告)号：US10862735B2

公开(公告)日：2020-12-08

申请号：US15493480

申请日：2017-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zitao Wang ,  Qin Wu ,  Yihong Huang ,  Liang Xia

IPC: H04W24/02 ,  H04L12/24 ,  H04L12/26 ,  H04L12/707

Abstract: The present application discloses a method and an apparatus for implementing an OAM function. In this solution, a unified OAM management center processes, based on a unified OAM management data model, network OAM status information, but the unified OAM management data model is unrelated to a network technology used by a network entity.

公开(公告)号：US20240300855A1

公开(公告)日：2024-09-12

申请号：US18263385

申请日：2022-01-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shifeng Chen ,  Yihong Huang ,  Wenbin Xu ,  Zhou Zeng ,  Geng Lin ,  Jiejie Chen ,  Guangxiang Zhu

IPC: C03C21/00 ,  C03C10/00 ,  H04N23/51 ,  H05K5/03

CPC classification number: C03C21/002 ,  C03C10/0009 ,  C03C10/0027 ,  C03C10/0054 ,  H04N23/51 ,  H05K5/03 ,  C03C2204/00

Abstract: A chemically strengthened glass ceramic includes strengthening layers respectively formed on opposite sides, and each of the strengthening layers includes a potassium strengthening layer and a sodium strengthening layer sequentially located from a surface to an inside of the chemically strengthened glass ceramic. A depth of the potassium strengthening layer is 0.01 micrometers (μm) to 5 μm. A depth of the sodium strengthening layer is greater than or equal to 0.1t, where t is a thickness of the chemically strengthened glass ceramic. An average transmittance of a three-dimensional (3D) chemically strengthened glass ceramic in an optical wavelength range of 400 nanometers (nm) to 700 nm is greater than or equal to 85 percent %; a b value of a Lab color chromaticity indicator is greater than or equal to −2.0; and a haze is less than or equal to 0.25%.

公开(公告)号：US11019367B2

公开(公告)日：2021-05-25

申请号：US16382211

申请日：2019-04-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qikun Wei ,  Yihong Huang ,  Yuping Jiang ,  Ruichuan You ,  Shen Zhang

IPC: H04N21/2187 ,  H04L29/06 ,  H04N21/84 ,  H04N21/643 ,  H04N21/858 ,  H04N21/6405 ,  H04N21/266 ,  H04N21/6408 ,  H04N21/6373 ,  H04N21/6437 ,  H04N21/633 ,  H04N21/2381

Abstract: The present invention provides a live video transmission method and system and an apparatus. According to the method, an M2U device receives a UDP request sent by a client, where the UDP request includes a live channel identifier and is used to request video data of a live channel corresponding to the live channel identifier, and the live channel identifier includes a multicast address or a URL. Then, the M2U device obtains the video data corresponding to the live channel identifier, and obtains a source IP address and a source port of the UDP request, where the source IP address and the source port of the UDP request are used as a destination IP address and a destination port of a UDP unicast packet to be subsequently sent to the client.

公开(公告)号：US20200351549A1

公开(公告)日：2020-11-05

申请号：US16931938

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Xiong ,  Li Xue ,  Yihong Huang ,  Youqing Yang

IPC: H04N21/442 ,  H04N21/6437 ,  H04N17/00 ,  H04N21/44 ,  H04N21/647

Abstract: A video quality assessment method includes obtaining a video quality assessment parameter of a to-be-assessed video, where the video quality assessment parameter of the to-be-assessed video includes an average packet loss gap of the to-be-assessed video, determining packet loss dispersion of the to-be-assessed video based on the video quality assessment parameter of the to-be-assessed video, and determining quality of the to-be-assessed video based on a packet loss rate of the to-be-assessed video, an average consecutive packet loss length of the to-be-assessed video, the packet loss dispersion of the to-be-assessed video, and attribute information of the to-be-assessed video.

公开(公告)号：US11736411B2

公开(公告)日：2023-08-22

申请号：US17033100

申请日：2020-09-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Nu Xia ,  Jian Chen ,  Xia Zhu ,  Jun Zhou ,  Yihong Huang ,  Ji Li ,  Naiwen Wei

IPC: H04L47/80 ,  H04L12/18 ,  H04L45/745

CPC classification number: H04L47/806 ,  H04L12/1886 ,  H04L45/745

Abstract: A method, a device, and a system for transmitting a multicast packet are provided. The method includes: when a device that is in a source subnet and that is connected to a core network receives a multicast packet of a target multicast group, determining addresses of devices that are in a plurality of destination subnets corresponding to the target multicast group and that are connected to the core network, replicating the multicast packet, to obtain a plurality of multicast packets whose quantity is equal to a quantity of the plurality of destination subnets, separately adding outer encapsulation to each multicast packet, and forwarding the multicast packet to which the outer encapsulation is added, where a destination address in the outer encapsulation is an address of a device that is in each destination subnet and that is connected to the core network.

公开(公告)号：US20210029348A1

公开(公告)日：2021-01-28

申请号：US17067645

申请日：2020-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Xiong ,  Youqing Yang ,  Yihong Huang

IPC: H04N17/04 ,  H04N21/44 ,  H04N19/114 ,  H04N19/154 ,  H04N17/00

Abstract: The present invention discloses a method, an apparatus, and a system for implementing video quality assessment. When video quality is assessed, a proportion of a damaged data caused by packet loss in a video frame in which the damaged data is located is considered, and other factors are also considered, such as a position of the damaged data in the video frame and impact of a scene in which the video frame is located on the video frame or a video frame located after the video frame. Therefore, accuracy of quality assessment is higher.

公开(公告)号：US20190260999A1

公开(公告)日：2019-08-22

申请号：US16284664

申请日：2019-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Xiong ,  Youqing Yang ,  Yihong Huang

IPC: H04N19/142 ,  G06K9/00 ,  H04N19/114 ,  H04N19/177

Abstract: A method and an apparatus for detecting a scene change frame in a video and a system, where when a scene change frame in the video is detected, whether a maximum P frame (Pmax) in all P frames in a group of pictures (GOP) of the video is a scene change frame is determined based on a relative relationship between a size Pkmax of Pmax and a median or an average of sizes of a plurality of I frames between Pmax and a scene change frame closest to Pmax and before Pmax, or a relative relationship between Pkmax and a median or an average of sizes of a plurality of P frames in the GOP to detect a scene change frame in the P frames such that missed detection of a scene change frame is effectively reduced.