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公开(公告)号：US20130121142A1
公开(公告)日：2013-05-16
申请号：US13735477
申请日：2013-01-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tao Bai , Yunfu Yu , Gang Chen , Shuxue Fan , Hui Liu
CPC classification number: H04L41/0654 , H04L12/18 , H04L12/1868 , H04L45/06 , H04L45/28
Abstract: Embodiments of the present invention provide a method and an apparatus for forwarding multicast traffic. The method includes: receiving a third multicast join message; in response to the third multicast join message, sending a first multicast join message to a first upstream router, and establishing an active path; in response to the third multicast join message, sending a second multicast join message to a second upstream router, and establishing a standby path; and sending multicast traffic to the multicast receiver through the active path, where the standby path does not forward the multicast traffic. In the foregoing embodiments, the standby path that does not forward the multicast traffic is established beforehand, so that when a fault occurs in the active path, the standby path established beforehand can be used to forward the multicast traffic.
Abstract translation: 本发明的实施例提供了一种用于转发多播业务的方法和装置。 该方法包括：接收第三组播加入消息; 响应于所述第三组播加入消息，向第一上游路由器发送第一组播加入消息，并建立活动路径; 响应于所述第三组播加入消息，向第二上游路由器发送第二组播加入消息，并建立备用路径; 并通过主用路径向组播接收者发送组播流量，备用路径不转发组播流量。 在上述实施例中，预先建立不转发组播流量的备用路径，使得当在活动路径中发生故障时，预先建立的备用路径可用于转发多播业务。
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公开(公告)号：US12238156B2
公开(公告)日：2025-02-25
申请号：US18283374
申请日：2022-03-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gang Chen
IPC: H04L65/612 , H04L65/65 , H04L67/56 , H04N21/234
Abstract: A media playing method-includes: receiving a first play request of an application, where the first play request includes a first identifier; sending a first address to the application, where the first address is a local uniform resource locator URL address; buffering, from a server device to a client device, a target media resource that is in the server and that corresponds to the first identifier; and sending, when receiving a second play request sent by the application program to the first address, the buffered target media resource to the application program for playing.
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公开(公告)号：US11582053B2
公开(公告)日：2023-02-14
申请号：US17137398
申请日：2020-12-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Nu Xia , Gang Chen , Hongbo Zhao , Boyuan Yu , Mingli Zhang
Abstract: A data multicast implementation method, apparatus, and system are provided. In some embodiments, a transmission device receives a standby forwarding path establishment request, where the standby forwarding path establishment request includes a device identifier, has a destination address being an address of a multicast source device, and is used to request to establish a standby forwarding path between a multicast destination device identified by the device identifier and the multicast source device. In those embodiments, when determining, based on the device identifier in the standby forwarding path establishment request, that the transmission device is located on an active forwarding path between the multicast destination device and the multicast source device, the transmission device skips using the transmission device as a device on the standby forwarding path between the multicast destination device and the multicast source device, and skips forwarding the standby forwarding path establishment request.
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公开(公告)号：US11451509B2
公开(公告)日：2022-09-20
申请号：US17373025
申请日：2021-07-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gang Chen
IPC: H04L61/256 , H04L61/2521 , H04L61/5046 , H04L101/668
Abstract: A data transmission method includes determining that a first network address segment overlaps with a second network address segment, and creating at least two subnets on a virtual private cloud (VPC). The first network address segment is a network address segment of a subnet in which a target server is located, and configured to run on the VPC. The first network address segment belongs to a network address segment of the VPC. The second network address segment is a network address segment of a subnet in which a first electronic device is located. A network address segment of one of the at least two subnets on the VPC does not overlap with the first or second network address segment. Network interfaces in the at least two subnets are configured to sequentially forward a data packet being transmitted between the target server and the first electronic device at least two times.
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公开(公告)号：US10810720B2
公开(公告)日：2020-10-20
申请号：US16347146
申请日：2016-12-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gang Chen , Zhongwei Tang , Wei Luo
IPC: H04N5/235 , G06T5/50 , G06T3/40 , H04N5/247 , H04N5/262 , H04N5/265 , H04N9/04 , H04N9/78 , G06T5/00
Abstract: This application provides an imaging method. The imaging method is applied to an imaging apparatus including a color camera and a black-and-white camera, and resolution of the black-and-white camera is higher than resolution of the color camera; and the imaging method includes: obtaining a zoom magnification; simultaneously capturing a color image and a black-and-white image of a target scene, where resolution of the black-and-white image is higher than resolution of the color image; performing cropping processing on the black-and-white image and the color image separately based on the zoom magnification, where the cropped black-and-white image and the cropped color image have a same field of view; and merging the cropped color image and the cropped black-and-white image to obtain an output image of the target scene. Therefore, according to the optical imaging method provided by embodiments of this application, the obtained output image can have a better optical zoom capability.
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Patent Agency Ranking
公开(公告)号：US20190114793A1
公开(公告)日：2019-04-18
申请号：US16090451
申请日：2016-03-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gang Chen
IPC: G06T7/38 , G06T7/223 , G06T7/285 , H04N13/204
Abstract: A method and an apparatus for a terminal, where the method includes obtaining a first video sequence photographed by a first camera and a second video sequence photographed by a second camera, determining, according to a first image in the first video sequence and photographed at a first moment and a second image in the second video sequence and photographed at the first moment, an available first motion vector (V), and a third image and a fourth image corresponding to the V, obtaining a second motion vector (U) of the first image relative to the third image, obtaining a third motion vector (W) of the fourth image relative to the second image, and obtaining a correspondence between a pixel in the first image and a pixel in the second image according to the V, the U, and the W.
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公开(公告)号：US20230421889A1
公开(公告)日：2023-12-28
申请号：US18253551
申请日：2021-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hantao Cui , Wei Ji , Guangyuan Li , Gang Chen
IPC: H04N23/63 , H04N23/68 , H04N13/239
CPC classification number: H04N23/632 , H04N23/687 , H04N13/239
Abstract: In accordance with an embodiment, a method of operating an electronic device comprising a screen, a first camera, and a second camera, includes: detecting that a zoom ratio gradually changes within a first ratio range, wherein the zoom ratio in the first ratio range is less than an optical zoom ratio of the second camera, and a ratio difference between the zoom ratio within the first ratio range and the optical zoom ratio of the second camera is less than a first value; cropping an image captured by the first camera to obtain a preview image whose field of view (FOV) size gradually changes; and displaying on the screen, the preview image whose FOV size gradually changes.
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公开(公告)号：US11625815B2
公开(公告)日：2023-04-11
申请号：US17030038
申请日：2020-09-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gregory Slabaugh , Youliang Yan , Fenglong Song , Gang Chen , Jiangwei Li , Tao Wang , Liu Liu , Ioannis Alexiou , Ioannis Marras , Sean Moran , Steven George McDonagh , Jose Costa Pereira , Viktor Vladimirovich Smirnov
Abstract: An image processing apparatus and a method are provided. The apparatus comprises a plurality of processing modules configured to operate in series to refine a raw image captured by a camera, the modules comprising a first module and a second module, each of which independently implements a respective trained artificial intelligence model, wherein: the first module implements an image transformation operation that performs an operation from the set comprising: (i) an essentially pixel-level operation that increases sharpness of an image input to the module, (ii) an essentially pixel-level operation that decreases sharpness of an image input to the module, (iii) an essentially pixel-block-level operation on an image input to the module; and the second module as a whole implements a different operation from the said set.
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公开(公告)号：US20210119814A1
公开(公告)日：2021-04-22
申请号：US17137398
申请日：2020-12-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Nu Xia , Gang Chen , Hongbo Zhao , Boyuan Yu , Mingli Zhang
IPC: H04L12/18 , H04L12/761 , H04L12/703 , H04L12/707
Abstract: A data multicast implementation method, apparatus, and system are provided. In some embodiments, a transmission device receives a standby forwarding path establishment request, where the standby forwarding path establishment request includes a device identifier, has a destination address being an address of a multicast source device, and is used to request to establish a standby forwarding path between a multicast destination device identified by the device identifier and the multicast source device. In those embodiments, when determining, based on the device identifier in the standby forwarding path establishment request, that the transmission device is located on an active forwarding path between the multicast destination device and the multicast source device, the transmission device skips using the transmission device as a device on the standby forwarding path between the multicast destination device and the multicast source device, and skips forwarding the standby forwarding path establishment request.
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公开(公告)号：US10547785B2
公开(公告)日：2020-01-28
申请号：US15563280
申请日：2015-03-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gang Chen
IPC: H04N5/232
Abstract: A photographing method includes: collecting, by a terminal device, data of M image frames of a photographed object, and processing the data of the M image frames to obtain M image frames; when collecting data of each of the M image frames of the photographed object, obtaining angular acceleration of the terminal device in an X-axis direction, a Y-axis direction, and a Z-axis direction; processing—the obtained angular acceleration in a period corresponding to the data of each image frame into shake information; selecting—one image frame from the M image frames as a reference image, performing registration on each of (M−1) image frames based on the reference image, the shake information, and a preset motion vector table, and performing fusion on the registered images; and displaying the compressed image.
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