公开(公告)号：US11146289B2

公开(公告)日：2021-10-12

申请号：US16370178

申请日：2019-03-29

Applicant: Intel Corporation

Inventor： Aman Bhatia ,  Zion S. Kwok ,  Justin Kang ,  Poovaiah M. Palangappa ,  Santhosh K. Vanaparthy

IPC: H03M13/11 ,  G11C29/52 ,  G06F11/10 ,  G11C29/04

Abstract: Examples include techniques to use intrinsic information when implementing a bit-flipping algorithm. An error correction control (ECC) decoder uses the intrinsic information to decode a low density parity count (LDPC) codeword. The intrinsic information including bits of a copy of a received LDPC codeword are compared to bits for variable nodes during an iteration of the bit-flipping algorithm to aid a determination as whether one or more bits for the variable nodes are to be flipped.

公开(公告)号：US11777530B2

公开(公告)日：2023-10-03

申请号：US17754152

申请日：2020-11-05

Applicant: Intel Corporation

Inventor： Ravi Motwani ,  Poovaiah Palangappa ,  Santosh Emmadi ,  Santhosh K. Vanaparthy ,  Aman Bhatia

IPC: H03M13/35 ,  H03M13/03 ,  H03M13/00 ,  H03M13/11 ,  H03M13/29

CPC classification number: H03M13/353 ,  H03M13/036 ,  H03M13/612 ,  H03M13/1162 ,  H03M13/2948

Abstract: Methods and apparatuses for generating optimized LDPC codes are proposed. One of the methods is a method for generating an optimized LDPC code for an asymmetric transmis¬ sion channel. The method includes receiving an initial LDPC code for the asymmetric transmission channel. Further, the method includes performing a density evolution threshold optimization for the initial LDPC code in order to obtain the optimized LDPC code for the asymmetric transmission channel. A uniformly mixed symmetric channel density for the asymmetric transmission channel is used in the density evolution threshold optimization.