公开(公告)号：US20190073262A1

公开(公告)日：2019-03-07

申请号：US15808808

申请日：2017-11-09

Applicant: VIA Technologies, Inc.

Inventor： Ching-Yu Chen ,  Yi-Lin Lai ,  Chen-Te Chen

IPC: G06F11/10 ,  G11C29/52 ,  H03M13/11

CPC classification number: G06F11/1068 ,  G06F11/1012 ,  G11C29/52 ,  H03M13/1108 ,  H03M13/1111 ,  H03M13/3707 ,  H03M13/3715 ,  H03M13/373

Abstract: An error checking and correcting (ECC) decoding method and apparatus are provided. A decoding circuit decodes a codeword using (or without using) reference information, wherein when the decoding circuit fails to decode a first codeword, the decoding circuit decodes a second codeword to produce decoded data. The decoding circuit checks whether a change has occurred from each codeword bit of the second codeword to a corresponding bit of the decoded data. In accordance with a bit position of the changed corresponding bit, the decoding circuit correspondingly changes the first codeword to a modified codeword, and/or correspondingly changes the reference information to modified information. The decoding circuit performs the ECC decoding again on the modified codeword (or the first codeword) using (or without using) the modified information.

公开(公告)号：US10474529B2

公开(公告)日：2019-11-12

申请号：US15808808

申请日：2017-11-09

Applicant: VIA Technologies, Inc.

Inventor： Ching-Yu Chen ,  Yi-Lin Lai ,  Chen-Te Chen

IPC: G06F11/00 ,  G06F11/10 ,  H03M13/11 ,  G11C29/52

Abstract: An error checking and correcting (ECC) decoding method and apparatus are provided. A decoding circuit decodes a codeword using (or without using) reference information, wherein when the decoding circuit fails to decode a first codeword, the decoding circuit decodes a second codeword to produce decoded data. The decoding circuit checks whether a change has occurred from each codeword bit of the second codeword to a corresponding bit of the decoded data. In accordance with a bit position of the changed corresponding bit, the decoding circuit correspondingly changes the first codeword to a modified codeword, and/or correspondingly changes the reference information to modified information. The decoding circuit performs the ECC decoding again on the modified codeword (or the first codeword) using (or without using) the modified information.