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:
Jan. 06, 2015
Filed:
Mar. 15, 2013
Viasat, Inc., Carlsbad, CA (US);
Sameep Dave, Hinckley, OH (US);
Fan Mo, Hinckley, OH (US);
ViaSat, Inc., Carlsbad, CA (US);
Abstract
Methods, systems, and devices are described for decoding data using a low-density parity check (LDPC) decoder. An edge memory in the LDPC decoder is configured to have a first bank and a second bank of memory partitions. The first bank stores extrinsic information for edges for a first set of N check nodes and the second bank stores extrinsic information for edges for a second set of N check nodes. The first and second banks are concurrently accessed to process 2N check nodes in parallel. The first and second sets of N check nodes may respectively correspond to odd-numbered and even-numbered check nodes from the 2N check nodes processed in parallel by the LDPC decoder. The LDPC decoder operation may include initializing channel soft information into a memory different from the edge memory and the use of incremental changes in the extrinsic information to update the extrinsic information.