Systems and methods for low cost LDPC decoding

N Graef - US Patent 8,161,348, 2012 - Google Patents
Various embodiments of the present invention provide systems and circuits that provide for
LDPC decoding and/or error correcting. For example, various embodiments of the present …

Method of decoding by message passing with scheduling depending on neighbourhood reliability

V Savin, D Ktenas - US Patent 8,245,115, 2012 - Google Patents
The invention relates to an iterative method by message pass ing for decoding of an error
correction code that can be displayed in a bipartite graph comprising a plurality of vari able …

Selectively applied hybrid min-sum approximation for constraint node updates of LDPC decoders

A Patapoutian, RY Shao, A Sridharan - US Patent 8,156,409, 2012 - Google Patents
In accordance with one or more embodiments, a decoder may determine whether a lowest
reliability value of a plurality of codeword bits that correspond to aparticular output reliability …

Concurrent decoding of data streams

GW Grube, TW Markison - US Patent 8,751,894, 2014 - Google Patents
A method begins by a dispersed storage (DS) processing module receiving one or more
pairs of coded values. The method continues with the DS processing module creating a …

High speed hard LDPC decoder

LP Jakab, DK Dash - US Patent 8,527,849, 2013 - Google Patents
BACKGROUND The Subject disclosure relates to data storage devices, such as solid-state
drives (SSDs), that use low-density parity check (LDPC) codes for error correction. In …

Systems and methods for hybrid message passing and bit flipping decoding of LDPC codes

DV Nguyen, SK Chilappagari - US Patent 9,614,548, 2017 - Google Patents
BACKGROUND LDPC codes and decoders that are used to decode LDPC codes may be
used in numerous applications and devices. For example, data storage, satellite …

Method and apparatus for identifying selected values from among a set of values

I Tsatsaragkos, NL Kanistras, V Paliouras - US Patent 8,930,790, 2015 - Google Patents
US8930790B1 - Method and apparatus for identifying selected values from among a set of
values - Google Patents US8930790B1 - Method and apparatus for identifying selected values …

Digital implementation of an enhanced minsum algorithm for error correction in data communications

R Farjadrad, R Shirani - US Patent 7,797,613, 2010 - Google Patents
Low density parity check codes (LDPCs) are error correc tion codes that perform near the
theoretically optimal limit. Similar to most error correcting codes, the LDPC decoding …

Apparatus and method for decoding low-density parity check code

H Uchikawa, K Harada - US Patent 8,086,932, 2011 - Google Patents
There is provided with a decoding apparatus for decoding a low-density parity check code
defined by a parity check matrix, includes: a first operation unit configured to carry out a row …

Decoding method, memory storage device and memory control circuit unit

YH Hsiao, HC Chang, HL Yen - US Patent App. 14/981,965, 2017 - Google Patents
(57) ABSTRACT A decoding method, a memory storage device and a memory control circuit
unit are provided. The method includes: determining an offset threshold value and a …