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:
Aug. 05, 2014
Filed:
Jun. 11, 2012
Yifei Zhang, Milpitas, CA (US);
Gregory Burd, San Jose, CA (US);
Yifei Zhang, Milpitas, CA (US);
Gregory Burd, San Jose, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A QC-LDPC decoding system employing a trapping set look-up table is provided. The entries of the trapping set look-up table may be sorted according to failure frequencies of the trapping sets. The decoder may determine short-cycles associated with dominant trapping sets in order to decode the received codeword. If the iterative decoder of the QC-LDPC decoding system fails to produce a valid codeword, the decoder may compute the syndrome pattern of the processed codeword and search the look-up table for a trapping set class that is responsible for the iterative decoder's failure. If no responsible trapping set is found in the look-up table, the decoder may attempt to decode the received codeword using alternate decoding methods and subsequently determine a trapping set associated with the decoded codeword. If a trapping set is determined, then that trapping set may be added to the look-up table.