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    File management method, distributed storage system, and management node
    31.
    发明授权
    File management method, distributed storage system, and management node 有权

    公开(公告)号：US11656763B2

    公开(公告)日：2023-05-23

    申请号：US17306494

    申请日：2021-05-03

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jun Xu ,  Junfeng Zhao ,  Yuangang Wang

    IPC: G06F3/06 ,  G06F16/13

    CPC classification number: G06F3/0607 ,  G06F3/067 ,  G06F3/0631 ,  G06F3/0643 ,  G06F3/0652 ,  G06F16/13

    Abstract: A file management method, a distributed storage system, and a management node are disclosed. In the distributed storage system, after receiving a file creation request sent by a host for requesting to create a file in a distributed storage system, a management node allocates, to the file, first virtual space from global virtual address space of the distributed storage system, where local virtual address space of each storage node in the distributed storage system is corresponding to a part of the global virtual address space. Then, the management node records metadata of the file, where the metadata of the file includes information about the first virtual space, and the information about the first virtual space is used to point to local virtual address space of a storage node that is used to store the file. Further, the management node sends, the information about the first virtual space to the host.

    Image recognition accelerator, terminal device, and image recognition method
    32.
    发明授权
    Image recognition accelerator, terminal device, and image recognition method 有权

    公开(公告)号：US10346701B2

    公开(公告)日：2019-07-09

    申请号：US15695681

    申请日：2017-09-05

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  NANYANG TECHNOLOGICAL UNIVERSITY

    Inventor： Hao Yu ,  Yuhao Wang ,  Leibin Ni ,  Wei Yang ,  Junfeng Zhao ,  Shihai Xiao

    IPC: G06K9/00 ,  G06K9/62

    Abstract: An image recognition accelerator, a terminal device, and an image recognition method are provided. The image recognition accelerator includes a dimensionality-reduction processing module, an NVM, and an image matching module. The dimensionality-reduction processing module first reduces a dimensionality of first image data. The NVM writes, into a first storage area of the NVM according to a specified first current I, ω low-order bits of each numeric value of the first image data on which dimensionality reduction has been performed, and writes, into a second storage area of the NVM according to a specified second current, (N−ω) high-order bits of each numeric value of the first image data on which dimensionality reduction has been performed. The image matching module determines whether an image library stored in the NVM includes image data matching the first image data on which dimensionality reduction has been performed.

    Data storage method and phase change memory
    33.
    发明授权
    Data storage method and phase change memory 有权

    公开(公告)号：US10083749B2

    公开(公告)日：2018-09-25

    申请号：US15412795

    申请日：2017-01-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhen Li ,  Qiang He ,  Xiangshui Miao ,  Ronggang Xu ,  Junfeng Zhao ,  Zhulin Wei

    IPC: G11C11/56 ,  G11C13/00

    CPC classification number: G11C13/0069 ,  G11C7/02 ,  G11C11/5678 ,  G11C13/0033 ,  G11C13/0097 ,  G11C2013/0092

    Abstract: A data storage method applying to a phase change memory and the phase change memory are provided. After obtaining to-be-stored data, the phase change memory (PCM) generates an erase pulse signal and a write pulse signal according to the to-be-stored data. The to-be-stored data is multi-bit data. The write pulse signal includes at least two contiguous pulses. Intervals between the at least two contiguous pulses are the same. The intervals between the at least two contiguous pulses have a value determined according to the to-be-stored data. The PCM applies the erase pulse signal to a storage unit of the PCM to enable the storage unit to change to a crystalline state. Further, the write pulse signal is applied to the storage unit to enable the storage unit to change to an amorphous state corresponding to a first resistance value, where the amorphous state represents the to-be-stored data.

    IMAGE RECOGNITION ACCELERATOR, TERMINAL DEVICE, AND IMAGE RECOGNITION METHOD
    34.
    发明申请
    IMAGE RECOGNITION ACCELERATOR, TERMINAL DEVICE, AND IMAGE RECOGNITION METHOD 审中-公开

    公开(公告)号：US20180012095A1

    公开(公告)日：2018-01-11

    申请号：US15695681

    申请日：2017-09-05

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD. ,  NANYANG TECHNOLOGICAL UNIVERSITY

    Inventor： Hao Yu ,  Yuhao Wang ,  Leibin Ni ,  Wei Yang ,  Junfeng Zhao ,  Shihai Xiao

    IPC: G06K9/00 ,  G06K9/62

    CPC classification number: G06K9/00973 ,  G06K9/00 ,  G06K9/6201

    Abstract: An image recognition accelerator, a terminal device, and an image recognition method are provided. The image recognition accelerator includes a dimensionality-reduction processing module, an NVM, and an image matching module. The dimensionality-reduction processing module first reduces a dimensionality of first image data. The NVM writes, into a first storage area of the NVM according to a specified first current I, ω low-order bits of each numeric value of the first image data on which dimensionality reduction has been performed, and writes, into a second storage area of the NVM according to a specified second current, (N−ω) high-order bits of each numeric value of the first image data on which dimensionality reduction has been performed. The image matching module determines whether an image library stored in the NVM includes image data matching the first image data on which dimensionality reduction has been performed.

    Positioning method based on visible light source, mobile terminal, and controller
    36.
    发明授权
    Positioning method based on visible light source, mobile terminal, and controller 有权

    公开(公告)号：US09800334B2

    公开(公告)日：2017-10-24

    申请号：US15070212

    申请日：2016-03-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaowen Dong ,  Junfeng Zhao ,  Wei Yang

    IPC: H04B10/116 ,  G01S11/12

    CPC classification number: H04B10/116 ,  G01S11/12

    Abstract: A positioning method based on a visible light source, a mobile terminal, and a controller. The method includes acquiring, by a visible light source controller, geographical position attribute information of a position at which a visible light source array is located, determining, by the visible light source controller according to a preset correspondence between geographical position attribute information of a position at which a visible light source array is located and a visible light source array pattern, a visible light source array pattern corresponding to the acquired geographical position attribute information, and controlling, by the visible light source controller according to the determined visible light source array pattern, the luminance state of each visible light source included in the visible light source array. Hence the method reduces the complexity of a positioning process.

    MEMORY ACTIVATION METHOD AND APPARATUS, AND MEMORY CONTROLLER
    38.
    发明申请
    MEMORY ACTIVATION METHOD AND APPARATUS, AND MEMORY CONTROLLER 审中-公开

    公开(公告)号：US20170263295A1

    公开(公告)日：2017-09-14

    申请号：US15607360

    申请日：2017-05-26

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shihai Xiao ,  Wei Yang ,  Junfeng Zhao

    IPC: G11C8/16 ,  G06F3/06

    CPC classification number: G11C8/16 ,  G06F3/0659 ,  G11C8/10

    Abstract: A first memory access request is obtained, where the first memory access request is used to request to access a first sub-row in a memory. A to-be-scheduled queue of the memory is searched for a second memory access request, where the to-be-scheduled queue of the memory includes multiple memory access requests, the second memory access request is used to request to access a second sub-row in the memory. The first sub-row and the second sub-row are located in a same row in the memory. The first memory access request and the second memory access request are combined to generate a first activation instruction, where the first activation instruction is used to instruct to activate the first sub-row and the second sub-row in the memory. The first activation instruction is sent to the memory.

    Data Storage Method and Phase Change Memory
    40.
    发明申请
    Data Storage Method and Phase Change Memory 审中-公开

    公开(公告)号：US20170133090A1

    公开(公告)日：2017-05-11

    申请号：US15412795

    申请日：2017-01-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhen Li ,  Qiang He ,  Xiangshui Miao ,  Ronggang Xu ,  Junfeng Zhao ,  Zhulin Wei

    IPC: G11C13/00 ,  G11C11/56

    CPC classification number: G11C13/0069 ,  G11C7/02 ,  G11C11/5678 ,  G11C13/0033 ,  G11C13/0097 ,  G11C2013/0092

    Abstract: A data storage method applying to a phase change memory and the phase change memory are provided. After obtaining to-be-stored data, the phase change memory (PCM) generates an erase pulse signal and a write pulse signal according to the to-be-stored data. The to-be-stored data is multi-bit data. The write pulse signal includes at least two contiguous pulses. Intervals between the at least two contiguous pulses are the same. The intervals between the at least two contiguous pulses have a value determined according to the to-be-stored data. The PCM applies the erase pulse signal to a storage unit of the PCM to enable the storage unit to change to a crystalline state. Further, the write pulse signal is applied to the storage unit to enable the storage unit to change to an amorphous state corresponding to a first resistance value, where the amorphous state represents the to-be-stored data.

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