发明名称 |
Read voltage level estimating method, memory storage device and memory control circuit unit |
摘要 |
A read voltage level estimating method, a memory storage device and a memory control circuit unit are provided. The method includes: reading a first region of a rewritable non-volatile memory module according to a first read voltage level to obtain a first encoding unit which belongs to a block code; performing a first decoding procedure on the first encoding unit and recording first decoding information; reading the first region according to a second read voltage level to obtain a second encoding unit which belongs to the block code; performing a second decoding procedure on the second encoding unit and recording second decoding information; and estimating and obtaining a third read voltage level according to the first decoding information and the second decoding information. Accordingly, a management ability of the rewritable non-volatile memory module adopting the block code may be improved. |
申请公布号 |
US9639419(B2) |
申请公布日期 |
2017.05.02 |
申请号 |
US201514745472 |
申请日期 |
2015.06.22 |
申请人 |
PHISON ELECTRONICS CORP. |
发明人 |
Lin Wei;Wang Tien-Ching;Lai Kuo-Hsin |
分类号 |
H03M13/09;G06F11/10;G11C29/02;G11C29/44;G11C29/50 |
主分类号 |
H03M13/09 |
代理机构 |
Jianq Chyun IP Office |
代理人 |
Jianq Chyun IP Office |
主权项 |
1. A read voltage level estimating method for a rewritable non-volatile memory module, the read voltage level estimating method comprising:
reading a first region of the rewritable non-volatile memory module according to a first read voltage level to obtain a first encoding unit, wherein the first encoding unit belongs to a block code; performing a first decoding procedure on the first encoding unit and recording first decoding information; reading the first region according to a second read voltage level to obtain a second encoding unit, wherein the second encoding unit belongs to the block code; performing a second decoding procedure on the second encoding unit and recording second decoding information; and estimating and obtaining a third read voltage level according to the first decoding information and the second decoding information. |
地址 |
Miaoli TW |