公开(公告)号：US20240128987A1

公开(公告)日：2024-04-18

申请号：US17994399

申请日：2022-11-28

Applicant: PHISON ELECTRONICS CORP.

Inventor： Shih-Jia Zeng ,  Yi-Fang Chang ,  Chun-Wei Tsao ,  Chen-An Hsu ,  Wei Lin

IPC: H03M13/15 ,  H03M13/01

CPC classification number: H03M13/1555 ,  H03M13/015 ,  H03M13/1575

Abstract: A decoding method, a memory storage device and a memory control circuit unit are disclosed. The method includes: activating a decoding circuit which supports a plurality of decoding modes each corresponding to a threshold value, wherein a distribution of the threshold value corresponds to error correction abilities of the decoding modes; reading first data from a rewritable non-volatile memory module; performing, by the decoding circuit, a first decoding operation on the first data; obtaining a decoding parameter according to an execution result of the first decoding operation; and performing, by the decoding circuit, a second decoding operation on the first data based on a first decoding mode among the decoding modes according to a relative numerical relationship between the decoding parameter and the threshold value.

公开(公告)号：US11962328B1

公开(公告)日：2024-04-16

申请号：US17994399

申请日：2022-11-28

Applicant: PHISON ELECTRONICS CORP.

Inventor： Shih-Jia Zeng ,  Yi-Fang Chang ,  Chun-Wei Tsao ,  Chen-An Hsu ,  Wei Lin

IPC: H03M13/00 ,  H03M13/01 ,  H03M13/15

CPC classification number: H03M13/1555 ,  H03M13/015 ,  H03M13/1575

Abstract: A decoding method, a memory storage device and a memory control circuit unit are disclosed. The method includes: activating a decoding circuit which supports a plurality of decoding modes each corresponding to a threshold value, wherein a distribution of the threshold value corresponds to error correction abilities of the decoding modes; reading first data from a rewritable non-volatile memory module; performing, by the decoding circuit, a first decoding operation on the first data; obtaining a decoding parameter according to an execution result of the first decoding operation; and performing, by the decoding circuit, a second decoding operation on the first data based on a first decoding mode among the decoding modes according to a relative numerical relationship between the decoding parameter and the threshold value.