Memory control method, memory storage device and memory control circuit unit

    公开(公告)号:US12147674B1

    公开(公告)日:2024-11-19

    申请号:US18761237

    申请日:2024-07-01

    Abstract: A memory control method, a memory storage device and a memory control circuit unit are provided. The method includes: setting preset read count thresholds corresponding to physical erasing units respectively; in a background operation, in response to a read count of a first physical erasing unit in the physical erasing units being greater than its corresponding preset read count threshold, reading word lines in the first physical erasing unit to obtain first error bit amounts; determining whether a refresh operation needs to be performed on the first physical erasing unit according to first error bit amounts; in response to no need to perform the refresh operation on the first physical erasing unit, selecting a first word line with the largest first error bit amount in the word lines, and detecting a voltage distribution variation of the first word line; and calculating a new read count threshold of the first physical erasing unit according to the voltage distribution variation.

    DATA ARRANGEMENT METHOD BASED ON FILE SYSTEM, MEMORY STORAGE DEVICE AND MEMORY CONTROL CIRCUIT UNIT

    公开(公告)号:US20240289022A1

    公开(公告)日:2024-08-29

    申请号:US18190055

    申请日:2023-03-24

    CPC classification number: G06F3/0613 G06F3/0659 G06F3/0679

    Abstract: A data arrangement method based on file system, a memory storage device and a memory control circuit unit are disclosed. The method includes: analyzing a file system stored in a system region to obtain a plurality of first logical units to which a first file belongs and first distribution information of a plurality of first physical units in a storage region, wherein the first physical units are mapped by the first logical units; determining whether to activate a data arrangement operation on the first file according to the first distribution information; after the data arrangement operation on the first file is activated, reading first data belonging to the first file from the first physical units; and writing, sequentially, the read first data to at least one second physical unit in the storage region.

    MEMORY PERFORMANCE OPTIMIZATION METHOD, MEMORY CONTROL CIRCUIT UNIT AND MEMORY STORAGE DEVICE

    公开(公告)号:US20230127512A1

    公开(公告)日:2023-04-27

    申请号:US17533020

    申请日:2021-11-22

    Abstract: A memory performance optimization method, a memory control circuit unit, and a memory storage device are provided. The method includes the following. An idle time of the memory storage device is counted in an active mode. The memory storage device is instructed to enter a first low electricity consumption mode from the active mode in response to the idle time being greater than an idle threshold. A first waiting time of the memory storage device is counted in the first low electricity consumption mode. The memory storage device is instructed to enter a second low electricity consumption mode from the first low electricity consumption mode in response to the first waiting time being greater than a first waiting threshold. Electricity consumption of the second low electricity consumption mode is lower than electricity consumption of the first low electricity consumption mode.

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