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.
Patent No.:
Date of Patent:
Mar. 07, 2017
Filed:
Jul. 28, 2014
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
LingQi Zeng, San Jose, CA (US);
Abhiram Prabhakar, Fremont, CA (US);
Jason Bellorado, San Jose, CA (US);
Johnson Yen, Fremont, CA (US);
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); H03M 13/11 (2006.01);
U.S. Cl.
CPC ...
H03M 13/1131 (2013.01); H03M 13/112 (2013.01); H03M 13/1117 (2013.01);
Abstract
Decoding an LDPC encoded codeword is disclosed. Variable nodes corresponding to a parity check matrix of the LDPC encoded codeword have been divided into a plurality of groups. A selected group of variable nodes from the plurality of groups of variable nodes is updated. Check nodes are updated using a min-sum update. A selected input value provided from a variable node of the selected group of variable nodes and provided to a certain check node of the check nodes is discarded to be not available for use in a future min-sum update.