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:
Sep. 05, 2017
Filed:
Jul. 24, 2015
Applicant:
Tidal Systems, Inc., Santa Clara, CA (US);
Inventor:
Yingquan Wu, Palo Alto, CA (US);
Assignee:
Tidal Systems, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/11 (2006.01); H03M 13/00 (2006.01);
U.S. Cl.
CPC ...
H03M 13/112 (2013.01); H03M 13/114 (2013.01); H03M 13/116 (2013.01); H03M 13/1137 (2013.01); H03M 13/658 (2013.01);
Abstract
A system implements adaptive desaturation for the min-sum decoding of LDPC codes. Specifically, when an-above threshold proportion of messages from check nodes to variable nodes (CN-to-VN messages) are saturated to a maximum fixed-precision value, all CN-to-VN messages are halved. This facilitates the saturation of correct messages and boosts error correction over small trapping sets. The adaptive desaturation approach reduces the error floor by orders of magnitudes with negligible add-on circuits.