公开(公告)号：US20230239474A1

公开(公告)日：2023-07-27

申请号：US18192553

申请日：2023-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqiang Shen ,  Yanxing Zeng ,  Junhui Gong ,  Boxuan Yue ,  Cheng Wang

IPC: H04N19/124 ,  H04N19/107

CPC classification number: H04N19/124 ,  H04N19/107

Abstract: This disclosure relates to a video compression method, apparatus, and device, and a medium. The method includes: obtaining a video frame, where the video frame includes a first dynamic group of pictures and a second dynamic group of pictures; extracting a first I frame in the first dynamic group of pictures, and extracting a second I frame in the second dynamic group of pictures; deleting duplicate data between the first I frame and the second I frame, to obtain a target I frame; and compressing the target I frame. The duplicate data between the first I frame and the second I frame is deleted, and this does not affect integrity of data of the video frame.

公开(公告)号：US20220147255A1

公开(公告)日：2022-05-12

申请号：US17579904

申请日：2022-01-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kun Guan ,  Shaohui Quan ,  Liyu Wang ,  Jianqiang Shen

IPC: G06F3/06 ,  H03M7/30

Abstract: In a method of storing data block, a storage device has stored a plurality of data block groups, each data block group having a common part that is contained in another data block in that group. For a target block to be stored, the storage device selects from the data block groups a target data block group has one data block whose common part is identical to a part of the target data block. The storage device then saves the target block by storing a target reference block of the target data block group and differential data between the target data block and the target reference block.

公开(公告)号：US10691535B2

公开(公告)日：2020-06-23

申请号：US15965424

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanxing Zeng ,  Jianqiang Shen ,  Gongyi Wang

IPC: G06F11/00 ,  G06F11/10 ,  G11C29/42 ,  G11C11/56 ,  G06F3/06 ,  G11C16/26 ,  G11C16/34 ,  G11C29/52 ,  H03M13/25

Abstract: A flash memory error correction method and apparatus is provided. The method includes determining a first data bit in a flash memory page, where the first data bit corresponds to different data respectively in the data obtained by reading the flash memory page using the (n+1)th read voltage threshold and the data obtained by reading the flash memory page using the mth read voltage threshold; and then reducing a confidence level of the first data bit in the data obtained by reading the flash memory page using the (n+1)th read voltage threshold; and performing, according to an adjusted confidence level of the first data bit, error correction decoding on the data obtained by reading the flash memory page using the (n+1)th read voltage threshold. Present disclosure effectively improves a success rate of error correction decoding, thereby significantly improving performance of an SSD storage system.

公开(公告)号：US10305512B2

公开(公告)日：2019-05-28

申请号：US15924007

申请日：2018-03-16

Applicant: HUAWEI TECHNOLOGIES, CO., LTD.

Inventor： Kun Guan ,  Jinan Leng ,  Gongyi Wang ,  Shaohui Quan ,  Jianqiang Shen

IPC: H03M7/30 ,  G06F17/30

Abstract: An encoding method and apparatus is described. In an encoding method, when a first target sub-block in a target block is obtained, a hash operation is first performed on the first target sub-block. Then, a first hash table is queried for a corresponding hash value according to an operation result, and a corresponding location in a reference block is found according to the hash value obtained by means of query, that is, first reference data is found. The first piece of target data in the first target sub-block is matched with the first reference data, and second target data in the target block is matched with second reference data in the reference block. In this way, an approximate location is predetermined, so that a range in which matching needs to be performed is narrowed, a data compression time is reduced, and data compression efficiency is improved.

公开(公告)号：US20180260276A1

公开(公告)日：2018-09-13

申请号：US15977794

申请日：2018-05-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanxing Zeng ,  Jianqiang Shen ,  Gongyi Wang ,  Jinyi Zhang ,  Wen Lv

IPC: G06F11/10 ,  G11C29/00 ,  G11B20/18

CPC classification number: G06F11/1076 ,  G06F11/1012 ,  G11B20/1833 ,  G11C29/88 ,  H03M13/373 ,  H03M13/3761

Abstract: This application discloses a storage controller. When running, the storage controller encodes, according to a check matrix, K to-be-coded data chunks obtained from a client, to generate two check chunks. In this way, if any chunk is damaged subsequently, the damaged chunk may be recovered by using the check matrix and an undamaged chunk.

公开(公告)号：US09823357B2

公开(公告)日：2017-11-21

申请号：US15133937

申请日：2016-04-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vladimir Iosifovich Ivanov ,  Yanxing Zeng ,  Jianqiang Shen ,  Lev Borisovich Rapoport

IPC: G01S19/52 ,  G01S19/44 ,  G01S11/10 ,  G01S19/13

CPC classification number: G01S19/52 ,  G01S11/10 ,  G01S19/13 ,  G01S19/44

Abstract: A wireless receiver being capable of determining its velocity with respect to a number of wireless transmitters is provided. The wireless receiver includes a communication interface for receiving a number of carrier signals originating from the number of wireless transmitters, and a processor being configured to determine a number of carrier phases of the carrier signals at two different time instants, to determine a number of carrier phase differences from the determined number of carrier phases for each carrier signal between the two different time instants, to determine a location matrix indicating a geometric relationship between a location of the wireless receiver and a number of locations of the number of transmitters, and to determine the velocity of the wireless receiver upon the basis of the number of carrier phase differences and the location matrix.

公开(公告)号：US20150372398A1

公开(公告)日：2015-12-24

申请号：US14752359

申请日：2015-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sergey Nikolaevich Dudorov ,  Yanxing Zeng ,  Jianqiang Shen ,  Igor Mikhailovich Punkov

IPC: H01Q25/04 ,  H01Q19/17 ,  H01Q3/40

CPC classification number: H01Q25/04 ,  H01Q3/40 ,  H01Q19/062 ,  H01Q19/17 ,  H01Q21/20 ,  H01Q25/007 ,  H01Q25/008 ,  H01Q25/02 ,  H04B7/0413 ,  H04L5/04

Abstract: The invention relates to a method and apparatus for generating and/or receiving electromagnetic beams with variable orbital angular momentum (OAM) states. The antenna array comprises antenna elements adapted to generate or receive electromagnetic beams with variable OAM. The antenna elements are arranged uniformly in an array plane of the antenna array along a circle. Input signal vectors of input data streams are multiplied with a beam-forming matrix to calculate transmit signal vectors applied to the antenna elements to generate the electromagnetic beams with variable OAM states. Reception signal vectors provided by antenna elements in response to incident electromagnetic beams with variable OAM states are multiplied with the beam-forming matrix to calculate output signal vectors of output data streams. The antenna array is supplemented by a collimating element.

Abstract translation: 本发明涉及用于产生和/或接收具有可变轨道角动量（OAM）状态的电磁束的方法和装置。 天线阵列包括适于用可变OAM生成或接收电磁波的天线元件。 天线元件沿着圆形均匀地布置在天线阵列的阵列平面中。 输入数据流的输入信号矢量与波束形成矩阵相乘以计算施加到天线元件的发射信号矢量以产生具有可变OAM状态的电磁波。 由天线元件提供的响应于具有可变OAM状态的入射电磁波的接收信号矢量与波束形成矩阵相乘以计算输出数据流的输出信号向量。 天线阵列由准直元件补充。