Memory controller, operating method of memory controller and memory system

    公开(公告)号:US11037646B2

    公开(公告)日:2021-06-15

    申请号:US16357431

    申请日:2019-03-19

    Abstract: An operating method of a memory controller that individually controls a plurality of memory units includes reading respective segments from the plurality of memory units based on a plurality of control signals; generating an output codeword based on the segments; performing error correction decoding on the output codeword; when a result of the error correction decoding indicates success, updating at least one of a plurality of accumulated error pattern information respectively corresponding to the plurality of memory units based on the result of the error correction decoding; and when the result of the error correction decoding indicates failure, regulating at least one of the plurality of control signals based on at least one of the plurality of accumulated error pattern information.

    STORAGE DEVICE AND METHOD OF OPERATING THE SAME

    公开(公告)号:US20250014647A1

    公开(公告)日:2025-01-09

    申请号:US18408126

    申请日:2024-01-09

    Abstract: A storage device includes a nonvolatile memory device including a plurality of first memory cells coupled to a first wordline and a plurality of second memory cells coupled to a second wordline, the first wordline and the second wordline being adjacent to each other, and a storage controller configured to control the nonvolatile memory device. The storage controller is further configured to encode data to be programmed into the plurality of second memory cells, based on a program state of each of the plurality of first memory cells, and encode the data to be programmed into the second wordline such that a first portion of the data to be written into a first portion of the plurality of second memory cells satisfies a first condition, and a second portion of the data to be written into a second portion of the plurality of second memory cells satisfies a second condition.

    Operating method of memory controller, storage device and the operating method thereof

    公开(公告)号:US11206046B2

    公开(公告)日:2021-12-21

    申请号:US16823913

    申请日:2020-03-19

    Abstract: An operating method of a memory controller is provided. The operating method includes receiving a first read data and a second conversion information, the second conversion information including data obtained by converting a second read data based on a linear operation, and the first read data and the second read data including data read from same memory cells; converting the first read data based on the linear operation to generate a first conversion information; performing a logical operation on the first conversion information and the second conversion information to generate an operation information; performing an inverse operation of the linear operation on the operation information to generate a reliability information; and correcting an error of the first read data based on the first read data and the reliability information.

    Polar code decoding apparatus and method

    公开(公告)号:US10693503B2

    公开(公告)日:2020-06-23

    申请号:US16013053

    申请日:2018-06-20

    Abstract: A polar code encoding and decoding method includes generating a first and second sub-codewords. The sub-codewords correspond to pre-codewords, and the pre-codewords have a shared data aspect. The sub-codewords provide useful error-recovery for data stored in a memory. When data is read from the memory, decoding takes place. The data read operation may include hard decision decoding, soft decision decoding, or hard decision decoding followed by soft decision decoding. In the method, the shared data aspect is used to decode a first sub-codeword for which decoding was not initially successful. An apparatus is also provided.

    Operation method of memory controller configured to control memory device

    公开(公告)号:US12216912B2

    公开(公告)日:2025-02-04

    申请号:US17885823

    申请日:2022-08-11

    Abstract: Disclosed herein are operation methods of a memory controller which controls a memory device. The method includes storing write data in a first area of the memory device, extracting first error position information indicating a position of at least one error included in data stored in the first area, storing the first error position information in a second area of the memory device, reading read data from the first area of the memory device, reading the first error position information from the second area of the memory device, refining the read data based on the first error position information to generate refined data, performing soft decision decoding based on the refined data to generate corrected data, and outputting the corrected data.

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