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    Mapping-based wear leveling for non-volatile memory
    2.
    发明授权
    Mapping-based wear leveling for non-volatile memory 有权

    公开(公告)号：US10540100B2

    公开(公告)日：2020-01-21

    申请号：US15949976

    申请日：2018-04-10

    Applicant: Western Digital Technologies, Inc.

    Inventor： Amir Hossein Gholamipour ,  Chandan Mishra ,  Daniel Helmick

    IPC: G06F3/00 ,  G06F3/06 ,  G06F12/1009

    Abstract: Apparatuses, systems, and methods are disclosed for mapping-based wear leveling for non-volatile memory. An apparatus may include one or more non-volatile memory elements, and a controller. A controller may maintain a logical-to-physical mapping for converting logical addresses to physical addresses. A logical-to-physical mapping may include a translation table that associates groups of logical addresses with groups of physical addresses, and one or more mathematical mappings. A mathematical mapping for a group of logical addresses may associate individual logical addresses within the group of logical addresses with individual physical addresses within a corresponding group of physical addresses. A controller may change at least one mathematical mapping. A controller may move data based on at least one changed mapping.

    Non-volatile memory with adaptive wear leveling
    3.
    发明授权
    Non-volatile memory with adaptive wear leveling 有权

    公开(公告)号：US10409716B2

    公开(公告)日：2019-09-10

    申请号：US15838201

    申请日：2017-12-11

    Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.

    Inventor： Amir Gholamipour ,  Chandan Mishra

    IPC: G06F3/06 ,  G06F12/02 ,  G11C16/34 ,  G11C16/04

    Abstract: A non-volatile storage apparatus includes a set of non-volatile memory cells and one or more control circuits in communication with the set of non-volatile memory cells. The one or more control circuits are configured to remap logical addresses to physical addresses of the set of non-volatile memory cells according to a plurality of placement mappings and to select a new placement mapping from the plurality of placement mappings according to a cost function associated with the new placement mapping.

    Updating write-in-place storage devices
    4.
    发明授权
    Updating write-in-place storage devices 有权

    公开(公告)号：US10379950B2

    公开(公告)日：2019-08-13

    申请号：US15828425

    申请日：2017-11-30

    Applicant: Western Digital Technologies, Inc.

    Inventor： Amir H. Gholamipour ,  Chandan Mishra ,  Mai Ghaly ,  Majid Nemati Anaraki

    IPC: G06F11/10 ,  G06F3/06 ,  G11C29/52

    Abstract: Systems, apparatuses, methods, and computer program products are disclosed for updating data of write-in-place storage devices. One system includes a write-in-place memory device including a redundant storage structure and a controller for the memory device. A memory device is configured to store data across a set of stripes of a redundant storage structure. A controller is configured to receive updated data for a dataset stored across a first stripe, generate a new parity for the dataset based on the updated data, overwrite the dataset across the first stripe with the updated data, and/or write the new parity to the set of stripes.

    MAPPING-BASED WEAR LEVELING FOR NON-VOLATILE MEMORY
    7.
    发明申请
    MAPPING-BASED WEAR LEVELING FOR NON-VOLATILE MEMORY 审中-公开

    公开(公告)号：US20190310780A1

    公开(公告)日：2019-10-10

    申请号：US15949976

    申请日：2018-04-10

    Applicant: Western Digital Technologies, Inc.

    Inventor： Amir Hossein Gholamipour ,  Chandan Mishra ,  Daniel Helmick

    IPC: G06F3/06 ,  G06F12/1009

    Abstract: Apparatuses, systems, and methods are disclosed for mapping-based wear leveling for non-volatile memory. An apparatus may include one or more non-volatile memory elements, and a controller. A controller may maintain a logical-to-physical mapping for converting logical addresses to physical addresses. A logical-to-physical mapping may include a translation table that associates groups of logical addresses with groups of physical addresses, and one or more mathematical mappings. A mathematical mapping for a group of logical addresses may associate individual logical addresses within the group of logical addresses with individual physical addresses within a corresponding group of physical addresses. A controller may change at least one mathematical mapping. A controller may move data based on at least one changed mapping.

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