The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 26, 2019

Filed:

Aug. 18, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Yufei Li, Shanghai, CN;

Yong Lu, Shanghai, CN;

Yi Wang, Shanghai, CN;

Hao Yang, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/15 (2006.01); H03M 13/17 (2006.01); H03M 13/37 (2006.01); G06F 11/10 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
H03M 13/1575 (2013.01); G06F 11/10 (2013.01); H03M 13/152 (2013.01); H03M 13/1525 (2013.01); H03M 13/1565 (2013.01); H03M 13/17 (2013.01); H03M 13/3746 (2013.01); G11C 2029/0411 (2013.01);
Abstract

Exemplary embodiments for providing multi-bit error correction based on a BCH code are provided. In one such embodiment, the following operations are repeatedly performed, including shifting each bit of the BCH code rightward by 1 bit while filling the bit vacated due to the rightward shifting in the BCH code with 0, calculating syndrome values corresponding to the shifting of the BCH code, and determining a first error number in the BCH code under the shifting based on the syndrome values corresponding to the shifting of the BCH code. In the case where the first error number is not equal to 0, modified syndrome values are calculated corresponding to the shifting of the BCH code. The modified syndrome values are those corresponding to the case that the current rightmost bit of the BCH code under the shifting is changed to the inverse value. Additional operations are performed as described herein.


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