Puncturing for structured low density parity check (LDPC) codes

S Kudekar, SY Park, A Manolakos… - US Patent …, 2020 - Google Patents
Certain aspects of the present disclosure generally relate to techniques for puncturing of
structured low density parity check (LDPC) codes. A method for wireless communications by …

Systems and methods for low density parity check data encoding

Z Li, K Gunnam, S Yang - US Patent 8,443,249, 2013 - Google Patents
Various embodiments of the present invention provide systems and methods for encoding
data. As an example, a data encoding circuit is disclosed that includes a first stage data …

Controllers that generate output bits for storage in non-volatile memory devices by puncturing code word bits and methods for operating the same

K Lee, J Kong, DM Shin, K Yang, SC Lim - US Patent 9,239,778, 2016 - Google Patents
An operating method of a controller includes selecting bits of code word to be punctured;
detecting locations of incapable bits of an input word based on locations of the bits to be …

Methods and apparatus for efficiently generating multiple lifted low-density parity-check (LDPC) codes

TJ Richardson, S Kudekar - US Patent 11,043,966, 2021 - Google Patents
Techniques and apparatus are provided for efficiently generating multiple lifted low-density
parity-check (LDPC) codes for a range of block lengths and having good performance. A …

High performance, flexible, and compact low-density parity-check (LDPC) code

TJ Richardson, S Kudekar - US Patent 11,031,953, 2021 - Google Patents
Certain aspects of the present disclosure generally relate to techniques for puncturing of
structured low-density parity-check (LDPC) codes. Certain aspects of the present disclosure …

Method and system for reliable data communications with adaptive multi-dimensional modulations for variable-iteration decoding

T Koike-Akino - US Patent 9,722,633, 2017 - Google Patents
In an advanced adaptive modulation and coding (AMC) scheme, the code rate and the parity-
check matrix (PCM) for low-density parity-check (LDPC) codes are adapted according to …

Transmitter, receiver, transmission method, and reception method

Y Murakami, T Kimura, M Ouchi - US Patent 10,236,914, 2019 - Google Patents
2017-01-27 Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO.,
LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD …

Apparatus and method for channel encoding/decoding in communication system using variable-length LDPC codes

S Myung, HS Jeong, JY Kim, SR Yun… - US Patent 8,261,152, 2012 - Google Patents
(57) ABSTRACT A method and apparatus for generating Low-Density Parity Check (LDPC)
codes of various block lengths from a struc tured LDPC code in a communication system is …

Multiple low density parity check (LDPC) base graph design

JB Soriaga, G Sarkis, S Kudekar, T Richardson… - US Patent …, 2019 - Google Patents
Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing
LDPC base graphs. Two or more LDPC base graphs may be maintained that are associated …

Manufacturer self-test for solid-state drives

Z Chen, D Patmore, JU Yingji, EF Haratsch - US Patent 9,595,352, 2017 - Google Patents
An apparatus comprising a memory and a controller. The memory is configured to process a
plurality of read/write operations. The memory comprises a plurality of memory modules …