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:
May. 11, 2021

Filed:

Mar. 08, 2019
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventors:

Naveen Kumar, San Jose, CA (US);

Aman Bhatia, San Jose, CA (US);

Abhiram Prabhakar, San Jose, CA (US);

Chenrong Xiong, San Jose, CA (US);

Fan Zhang, San Jose, CA (US);

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/37 (2006.01); G11C 29/52 (2006.01); H03M 13/11 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
H03M 13/3753 (2013.01); G06F 11/1068 (2013.01); G11C 29/52 (2013.01); H03M 13/1102 (2013.01);
Abstract

Memory controllers, decoders and methods execute a hybrid decoding scheme. An initial iteration of decoding of a codeword is performed using a bit-flipping (BF) decoder or a min-sum (MS) decoder depending on whether or not an unsatisfied check (USC) count of the codeword is less than a threshold. For this initial iteration, the BF decoder is used when the USC count is less than the threshold, and MS decoder when the USC count is greater than or equal to the threshold. When decoding of the codeword is initially performed with the BF decoder, decoding continues with the BF decoder until a first set of conditions is satisfied or the codeword is successfully decoded. When decoding of the codeword is performed with the MS decoder, decoding continues with the MS decoder until a second set of conditions is satisfied.


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