| 发明名称 |
FLASH MEMORY SYSTEM AND OPERATING METHOD THEREOF |
| 摘要 |
An operation method of a flash memory system includes: performing hard decision decoding on a codeword, which is encoded in units of message blocks with row constituent codes and column constituent codes according to a block-wise concatenated BCH (BC-BCH) method; identifying a location of an error message block to which the hard decision decoding fails among a plurality of the message blocks, when the hard decision decoding fails; generating soft decision information corresponding to the row constituent codes and the column constituent codes of the error message block; and performing soft decision decoding on the error message block based on the soft decision information. |
| 申请公布号 |
US2016210190(A1) |
申请公布日期 |
2016.07.21 |
| 申请号 |
US201514802833 |
申请日期 |
2015.07.17 |
| 申请人 |
SK hynix Inc. ;Korea Advanced Institute of Science and Technology |
发明人 |
HA Jeong-Seok;KIM Dae-Sung;JEONG Su-Hwang |
| 分类号 |
G06F11/10;H03M13/29;H03M13/15;G11C29/52 |
主分类号 |
G06F11/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An operation method of a flash memory system having a controller and a memory device, the operation method comprising:
performing hard decision decoding on a codeword, which is encoded in units of message blocks with row constituent codes and column constituent codes according to a block-wise concatenated BCH (BC-BCH) method; identifying a location of an error message block to which the hard decision decoding fails among a plurality of the message blocks, when the hard decision decoding fails; generating soft decision information corresponding to the row constituent codes and the column constituent codes of the error message block; and performing soft decision decoding on the error message block based on the soft decision information. |
| 地址 |
Gyeonggi-do KR |
