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:
Dec. 06, 2016
Filed:
Oct. 10, 2014
Applicant:
Tidal Systems, Inc., Santa Clara, CA (US);
Inventors:
Yingquan Wu, Palo Alto, CA (US);
Xiaojie Zhang, San Jose, CA (US);
Assignee:
Tidal Systems, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); H03M 13/11 (2006.01);
U.S. Cl.
CPC ...
H03M 13/112 (2013.01); H03M 13/114 (2013.01); H03M 13/6594 (2013.01);
Abstract
A method is disclosed for performing LDPC decoding, specifically layered min-sum decoding using a Tanner graph including check nodes (CN) and variable nodes (VN). Messages passed between nodes are quantized in a non-uniform manner. Values below a threshold are uniformly quantized whereas values above the threshold are non-uniformly quantized. A corresponding inverse-quantization is also defined.