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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.
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公开(公告)号：US11212563B2
公开(公告)日：2021-12-28
申请号：US17197156
申请日：2021-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Jinhui Zhang , Ji Li , Zhigui Chen
IPC: H04N21/236 , H04N21/234 , H04N21/438 , H04N21/44
Abstract: A video stream switching method includes receiving, by transmission device, a plurality of video streams of a first video and a plurality of video streams of a second video, sending the video streams of the first video through target output ports respectively corresponding to the video streams of the first video, after receiving a switching instruction, determining switching reference information of a reference end-of-frame packet of each video stream of the first video and the second video, determining switching reference information of a switching packet of the video stream, and switching from the video streams of the first video to the video streams of the second video based on the switching reference information of the switching packet of each video stream.
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公开(公告)号：US20210204007A1
公开(公告)日：2021-07-01
申请号：US17197156
申请日：2021-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Jinhui Zhang , Ji Li , Zhigui Chen
IPC: H04N21/236 , H04N21/438 , H04N21/234 , H04N21/44
Abstract: Embodiments of the present invention disclose a video stream switching method. The method includes: A transmission device receives a plurality of video streams of a first video and a plurality of video streams of a second video; sends the plurality of video streams of the first video through target output ports respectively corresponding to the plurality of video streams of the first video; after receiving a switching instruction, determines switching reference information of a reference end-of-frame packet of each video stream of the first video and the second video, and then determines switching reference information of a switching packet of the video stream; and switches from the plurality of video streams of the first video to the plurality of video streams of the second video based on the switching reference information of the switching packet of each video stream.
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公开(公告)号：US12158945B2
公开(公告)日：2024-12-03
申请号：US17371712
申请日：2021-07-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ji Li , Leting Ren , Li Duan , Jun Xia
Abstract: This application provides an authentication credential protection method and system. The protection method includes the following steps: generating authentication secret information based on a lock screen password and hardware secret information of a first device; randomly generating, by the first device, a symmetric key, and using the symmetric key as an encryption key for the authentication secret information; splitting the encryption key into at least two first key segments by using a multi-party data splitting algorithm, where one of the at least two first key segments is stored on the first device; and sending, by the first device, another first key segment to a trusted device. In the foregoing technical solution, the authentication secret information is generated by using the lock screen password and the hardware secret information, increasing information complexity. In addition, different trusted devices are used to store the split key segments, improving security of the encryption key.
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Patent Agency Ranking
公开(公告)号：US11483495B2
公开(公告)日：2022-10-25
申请号：US17180568
申请日：2021-02-19
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jinhui Zhang , Jie Xiong , Ji Li , Wenbin Liu
Abstract: Disclosed are a method, an apparatus, and a system for implementing video stream switching. The method can determine switching reference information of a first reference frame trailer packet of a first video stream and switching reference information of a second reference frame trailer packet of a second video stream, when receiving a switching instruction; and switch from the first video stream sent through the target egress port to the second video stream based on the switching reference information of the first switching packet and the switching reference information of the second switching packet. Because locations of data packets sent before and after switching are considered during video stream switching, damage caused by a switching operation to a transmitted video image can be effectively reduced.
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公开(公告)号：US11122116B2
公开(公告)日：2021-09-14
申请号：US16587915
申请日：2019-09-30
Applicant: Huawei Technologies Co., Ltd.
Abstract: A load balancing system, method, and apparatus, where the method includes: receiving, by a load balancing device, a first message from a client that is used to request to establish a first Transmission Control Protocol (TCP) connection; sending the first message to a server; receiving a second message from the client that is used to request to establish a second TCP connection; and determining, based on a token of the server included in the second message, that a destination device of the second message is the server, and sending the second message to the server, in order to establish the second TCP connection between the client and the server.
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公开(公告)号：US20210176408A1
公开(公告)日：2021-06-10
申请号：US17180568
申请日：2021-02-19
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jinhui Zhang , Jie Xiong , Ji Li , Wenbin Liu
Abstract: Disclosed are a method, an apparatus, and a system for implementing video stream switching. The method can determine switching reference information of a first reference frame trailer packet of a first video stream and switching reference information of a second reference frame trailer packet of a second video stream, when receiving a switching instruction; and switch from the first video stream sent through the target egress port to the second video stream based on the switching reference information of the first switching packet and the switching reference information of the second switching packet. Because locations of data packets sent before and after switching are considered during video stream switching, damage caused by a switching operation to a transmitted video image can be effectively reduced.
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公开(公告)号：US20210014174A1
公开(公告)日：2021-01-14
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: H04L12/927 , H04L12/18 , H04L12/741
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.
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公开(公告)号：US20200028899A1
公开(公告)日：2020-01-23
申请号：US16587915
申请日：2019-09-30
Applicant: Huawei Technologies Co., Ltd.
Abstract: A load balancing system, method, and apparatus, where the method includes: receiving, by a load balancing device, a first message from a client that is used to request to establish a first Transmission Control Protocol (TCP) connection; sending the first message to a server; receiving a second message from the client that is used to request to establish a second TCP connection; and determining, based on a token of the server included in the second message, that a destination device of the second message is the server, and sending the second message to the server, in order to establish the second TCP connection between the client and the server.
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