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公开(公告)号：US20210359597A1
公开(公告)日：2021-11-18
申请号：US17443730
申请日：2021-07-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongbing GAO , Chen WANG , Zhaopeng LIU
Abstract: A device for resolving common-mode voltage interference is applied to a power supply system including a power converter and a switch mechanism. Each phase of an output end of the power converter is connected to a downstream circuit by using the switch mechanism. The switch mechanism includes a first switch and a second switch. The device includes a controller and a passive component. Two ends of the first switch in at least one phase of the output end of the power converter are connected in parallel to the passive component, and the controller controls the second switch to be turned on, and when a voltage difference between the two ends of the first switch is less than a preset voltage, controls the first switch to be turned on. In this manner, the switch mechanism is protected, thereby prolonging a service life of the switch mechanism.
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公开(公告)号：US20190281607A1
公开(公告)日：2019-09-12
申请号：US16423180
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Quanzhong GAO , Chaoyi YAN , Chen WANG
Abstract: A beamforming method and apparatus are disclosed, to expand coverage of a PDCCH in a particular direction, and improve demodulation performance of the PDCCH. Under this method, a cell-specific reference signal CRS wide beam can be combined by a base station with N CRS narrow beams to form N CRS composite beams. A first beam can be selected by the base station from the N CRS composite beams. Beamforming processing can be performed by the base station on a physical downlink control channel (PDCCH) based on a weight of the first beam to form a second beam. The first beam and the second beam can be sent.
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公开(公告)号：US20210408801A1
公开(公告)日：2021-12-30
申请号：US17471794
申请日：2021-09-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jincheng SHAO , Jixin ZHU , Xiaowei XIE , Chen WANG
Abstract: A power supply circuit includes a first input end (IN1), a second input end (IN2), a first output end (OUT1), and a second output end (OUT2). An input end of a first voltage conversion circuit (VCC) is used as IN1 and connected to an output end of a solar panel. A first output end of the first VCC is used as OUT1 and connected to a first power supply end of a monitoring chip. A second output end of the first VCC is connected to an input end of an energy storage module. An input end of the rectifier circuit is used as IN2 and connected to an AC power network. An output end of the rectifier circuit is connected to an input end of a second VCC. An output end of the second VCC and an output end of the energy storage module are used as OUT2 and connected to a second power supply end of the monitoring chip.
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Patent Agency Ranking
公开(公告)号：US20220164316A1
公开(公告)日：2022-05-26
申请号：US17671224
申请日：2022-02-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ren REN , Chen WANG , Pingjing GUO
IPC: G06F16/174
Abstract: A deduplication method and apparatus are provided. In the method, a fingerprint record that includes a plurality of fingerprint record items is first obtained, and at least two first fingerprint record items that include a same fingerprint are then determined from the fingerprint record. For example, the at least two first fingerprint record items each include a first fingerprint, so that deduplication is performed on data corresponding to the first fingerprints in the at least two first fingerprint record items. The at least two first fingerprint record items are deleted, a stub of the first fingerprint is recorded in the fingerprint record, and the stub of the first fingerprint indicates that the first fingerprint is a duplicated fingerprint.
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公开(公告)号：US20220011356A1
公开(公告)日：2022-01-13
申请号：US17486506
申请日：2021-09-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen WANG , Xiaowei XIE , Yang HU
Abstract: An insulation resistance detection circuit and method are disclosed. The circuit includes a controller configured to: open a first relay, and close second relays, or switch an on/off status of at least one of the second relays; determine, based on a first measurement value between a positive input terminal of an inverter circuit and an earthing point, whether the positive input terminal of the inverter circuit is short-circuited or has low resistance to protective earthing; and determine, based on a second measurement value between a negative input terminal of the inverter circuit and the earthing point, whether the negative input terminal of the inverter circuit is short-circuited or has low resistance to protective earthing, where the first relay is one of in M relays and is connected to at least one impedor in parallel, and the second relays are relays other than the first relay in the M relays.
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公开(公告)号：US20210157513A1
公开(公告)日：2021-05-27
申请号：US17166233
申请日：2021-02-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G06F3/06
Abstract: A data reading method, apparatus, and system, and a distributed system, related to the field of storage technologies and can be applied to data reading. The method includes: receiving a data read request sent by a terminal, where the data read request includes a logical address of target data; locally searching, based on the logical address, a first slave node for a latest version of the target data; and, when it is determined that the latest version of the target data has been stored in each of a plurality of slave nodes, sending the latest version of the target data to the terminal. This data reading method, apparatus, system, and distributed system can avoid a rollback of a version of read data.
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公开(公告)号：US20180062681A1
公开(公告)日：2018-03-01
申请号：US15690860
申请日：2017-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Cheng ZHANG , Jinming WANG , Chen WANG , Bingxin LI
IPC: H04B1/10 , H04B1/18 , H04B17/336
CPC classification number: H04B1/1027 , H04B1/06 , H04B1/10 , H04B1/18 , H04B1/30 , H04B17/336
Abstract: Embodiments of the present invention provide a receiver and a wireless communications apparatus. The receiver includes: an attenuation circuit, configured to receive an input signal, and obtain a first signal according to the input signal; a low-noise amplification circuit, configured to receive the first signal, and obtain a second signal according to the first signal; an orthogonal down-frequency conversion circuit, configured to receive the second signal, and process the second signal to obtain an output signal; and a control circuit, configured to separately control the attenuation circuit and the low-noise amplification circuit according to power of an interference signal included in the output signal, so as to determine whether the attenuation circuit attenuates the input signal and whether the low-noise amplification circuit amplifies the first signal.
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8.发明申请METHOD, APPARATUS, AND SYSTEM FOR CALCULATING IDENTIFICATION THRESHOLD TO DISTINGUISH COLD DATA AND HOT DATA 审中-公开用于计算识别阈值以识别冷数据和热数据的方法，装置和系统公开(公告)号：US20160283129A1
公开(公告)日：2016-09-29
申请号：US15173456
申请日：2016-06-03
Applicant: Huawei Technologies Co., Ltd.
IPC: G06F3/06
CPC classification number: G06F3/0605 , G06F3/061 , G06F3/0617 , G06F3/064 , G06F3/0649 , G06F3/0653 , G06F3/067 , G06F3/0685
Abstract: A method, an apparatus, and a system for calculating a identification threshold to distinguish cold data and hot data. The method includes: obtaining, according to a total capacity of hot data storage mediums, a size of data blocks, and the IO count statistical values on all the storage nodes and when the hot data storage mediums are filled with the data blocks corresponding to large IO count statistical values, a minimum IO count value in a count range corresponding to a minimum IO count statistical value in the large IO count statistical value, and using the minimum IO count value as a identification threshold to distinguish cold data and hot data. In the present invention, all storage nodes in a storage system, independently but cooperatively, implement hierarchical data storage in the entire storage system.
Abstract translation: 一种用于计算识别阈值以区分冷数据和热数据的方法，装置和系统。 该方法包括：根据热数据存储介质的总容量，获得所有存储节点上的数据块的大小和IO计数统计值，并且当热数据存储介质被填充与大对应的数据块时 IO计数统计值，计数范围内的最小IO计数值对应于大IO计数统计值中的最小IO计数统计值，并使用最小IO计数值作为识别阈值来区分冷数据和热数据。 在本发明中，存储系统中的所有存储节点独立地但协作地在整个存储系统中实现分级数据存储。
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