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公开(公告)号：US11290232B2
公开(公告)日：2022-03-29
申请号：US16683847
申请日：2019-11-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei Wang , Yan Chen , Zukang Shen , Lei Zhang
Abstract: This application provides a communications method and apparatus, to improve data transmission reliability. The method includes: determining, by a terminal device, M pilot ports that are used to transmit one data stream, where M is a positive integer greater than or equal to 2; and sending, by the terminal device to a network device, M pilot signals and the data stream that have been subject to same precoding processing, where the M pilot signals are respectively generated based on the M pilot ports.
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公开(公告)号：US20210004166A1
公开(公告)日：2021-01-07
申请号：US17029285
申请日：2020-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G06F3/06
Abstract: In a method disclosed for writing data, a device receives data, divides the data into one or more data fragments, obtains a first parity fragment based on the one or more data fragments and a second parity fragment of a written data fragment in a stripe distributed across a plurality of nodes, stores the one or more data fragments and the first parity fragment in the stripe.
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公开(公告)号：US10714141B2
公开(公告)日：2020-07-14
申请号：US16114412
申请日：2018-08-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qingchao Luo , Lei Zhang
IPC: G11B20/12 , G06F3/06 , G06F12/0868 , G11B5/012
Abstract: A method for accessing a shingled magnetic recording (SMR) disk is provided. The method includes: receiving, by the server, a data operation request, where the data operation request includes address information of target data; determining, according to the address information, a target storage zone in the SMR disk that corresponds to the target data; determining that there is write pointer information of the target storage zone in a cache, and obtaining the write pointer information from the cache, where the write pointer information is address information of latest stored data in the target storage zone; generating a data operation instruction according to the write pointer information and the address information of the target data, where the data operation instruction is used to perform an operation on the target data; and sending the data operation instruction to the SMR disk. Embodiments of the present disclosure are applied for a server to access an SMR disk.
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公开(公告)号：US10678648B2
公开(公告)日：2020-06-09
申请号：US15614985
申请日：2017-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Heng Huang , Lei Zhang , Hua Cheng
Abstract: A method, an apparatus, and a system for migrating virtual machine backup information, which implement backup information migration after a virtual machine is migrated. The method includes: receiving, by a first backup server, a migration trigger message, where the migration trigger message carries pre-migration virtual-machine identification information and indication information of a second backup server; determining, by the first backup server, backup information of the virtual machine according to the pre-migration virtual-machine identification information; and sending, by the first backup server, the backup information to the second backup server. Therefore, the migrated virtual machine inherits backup information existing before the migration, such that the migrated virtual machine continues to be protected by backup data existing before the migration, and data of the virtual machine is backed up according to a backup policy existing before the migration.
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公开(公告)号：US10082982B2
公开(公告)日：2018-09-25
申请号：US15479696
申请日：2017-04-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lei Zhang
CPC classification number: G06F3/065 , G06F3/0619 , G06F3/064 , G06F3/067 , G06F11/1451 , G06F11/1464 , G06F11/1469 , G06F2201/815 , G06F2201/84
Abstract: A data backup method and apparatus, a data restoration method and apparatus, and a server are presented. The backup method includes the following steps of obtaining, by a backup server, an original differential bitmap of a first target volume; obtaining valid data in each fixed-length data block from the first target volume according to the original differential bitmap; saving a bitmap corresponding to a fixed-length data block including the valid data to a fixed-length volume bitmap file of the fixed-length data block according to the original differential bitmap; and saving the valid data in the fixed-length data block to a fixed-length volume file of the fixed-length data block. According to the foregoing solution, only valid data is transmitted, an amount of data transmitted between the production end and the server can be reduced, a transmission speed can be increased, and storage space can be saved.
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Patent Agency Ranking
公开(公告)号：US10064194B2
公开(公告)日：2018-08-28
申请号：US15192501
申请日：2016-06-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Li , Dageng Chen , Lei Zhang
CPC classification number: H04W72/048 , H04L5/0016 , H04L5/0053 , H04W4/08 , H04W8/005 , H04W48/16 , H04W72/04 , H04W76/14
Abstract: Embodiments of the present invention provide a method and an apparatus for allocating a device-to-device (D2D) communication resource. The method for allocating a device-to-device D2D communication resource in the present invention comprises: receiving, by a first network device, a device-to-device D2D communication capability sent by a user device within coverage; sending, by the first network device according to the communication capability, a resource identifier to each user device within the coverage of the first network device in a D2D group, where the D2D group includes at least two user devices; and sending, by the first network device, a resource allocation message, where the resource allocation message carries D2D communication resource allocation information corresponding to the resource identifier.
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27.发明授权Frame type detection and frame size detection methods and apparatuses for video stream 有权视频流的帧类型检测和帧大小检测方法和装置公开(公告)号：US09571862B2
公开(公告)日：2017-02-14
申请号：US14469953
申请日：2014-08-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04N7/12 , H04N19/89 , H04N17/00 , H04N19/115 , H04N19/61 , H04N19/103 , H04N19/85 , H04N21/44 , H04N21/6437 , H04L12/26
CPC classification number: H04N19/89 , H04L43/0835 , H04N17/004 , H04N19/103 , H04N19/115 , H04N19/61 , H04N19/85 , H04N21/44008 , H04N21/6437
Abstract: Embodiments of the present invention provide frame type detection and frame size detection methods and apparatuses for a video stream. The video frame type detection method includes: obtaining a size of a current video frame; obtaining a change feature value of the current video frame; obtaining an I-frame threshold of the current video frame; and determining whether the previous first video frame is an I frame according to the change feature value of the current video frame and a change feature value of the previous first video frame, the I-frame threshold of the current video frame, and the size of the current video frame, the size of the previous first video frame, and a size of a previous second video frame. The present invention provides a complete and effective frame type detection method; in addition, impact of a video frame rate is fully considered.
Abstract translation: 本发明的实施例提供了用于视频流的帧类型检测和帧大小检测方法和装置。 视频帧类型检测方法包括：获得当前视频帧的大小; 获取当前视频帧的改变特征值; 获得当前视频帧的I帧阈值; 以及根据当前视频帧的变化特征值和前一个第一视频帧的改变特征值，当前视频帧的I帧阈值以及当前视频帧的I帧阈值来确定先前的第一视频帧是否是I帧 当前视频帧，先前第一视频帧的大小，以及之前的第二视频帧的大小。 本发明提供一种完整且有效的帧类型检测方法; 另外，视频帧速率的影响也被充分考虑。
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公开(公告)号：US09462169B2
公开(公告)日：2016-10-04
申请号：US14574002
申请日：2014-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qingpeng Xie , Lei Zhang , Shanfu Li , Jun Yao , Shan Gao
CPC classification number: H04N5/2256 , H04N5/23222 , H04N5/23293 , H04N5/2354 , H04N5/2355 , H04N5/2356
Abstract: Embodiments of the present invention disclose a shooting method, an apparatus, and a terminal. The method includes: after it is detected that a camera is started, instructing a display screen facing a shooting person to display a preview image; obtaining a preset lighting parameter; controlling a display screen facing a shot target to provide lighting by using the preset lighting parameter; and shooting an image according to a shooting instruction. In the embodiments of the present invention, a display screen may be used as an auxiliary light source, and the display screen is controlled to provide lighting by using a preset lighting parameter, so that the quality of an image shot by a camera in a low light condition is improved.
Abstract translation: 本发明的实施例公开了一种拍摄方法，装置和终端。 该方法包括：在检测到摄像机开始之后，指示面向拍摄人物的显示屏幕显示预览图像; 获得预设的照明参数; 控制面向射击目标的显示屏幕，通过使用预设的照明参数来提供照明; 并根据拍摄说明拍摄图像。 在本发明的实施例中，显示屏可以用作辅助光源，并且通过使用预设的照明参数来控制显示屏以提供照明，使得由相机拍摄的图像的质量低 光条件得到改善。
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公开(公告)号：US12068895B2
公开(公告)日：2024-08-20
申请号：US18166529
申请日：2023-02-09
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of this application provide a data transmission method and apparatus. A method at a transmit end includes: obtaining a first sequence, where the first sequence includes a first sub-sequence and a second sub-sequence; mapping the first sub-sequence into K third sub-sequences based on a preset sequence group; performing differential coding and phase modulation on the second sub-sequence to obtain a fourth sequence whose length is K′; obtaining K fifth sub-sequences based on the K third sub-sequences and the K′ fourth sub-sequences; and outputting a second sequence including the K fifth sub-sequences. A method at a receive end includes: obtaining a second sequence including K fifth sub-sequences, and detecting the K fifth sub-sequences based on a preset sequence group to obtain a first sub-sequence; and performing differential demodulation based on the first sub-sequence to obtain a second sub-sequence, so that a first sequence is determined.
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公开(公告)号：US20230254639A1
公开(公告)日：2023-08-10
申请号：US18301034
申请日：2023-04-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lei Zhang , Zhihui Liu
CPC classification number: H04R3/005 , G06V40/10 , G06T7/70 , G06V10/764 , G06T7/20 , G06T7/55 , H04R1/406 , G06T2207/30201 , G06T2207/30242
Abstract: A sound pickup method is implemented by a device having a camera and a microphone. The method includes determining a target person in an image captured by the camera; determining a target sound pickup range based on a location of the target person in the image; and performing sound pickup in the target sound pickup range using the microphone.
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