公开(公告)号：US20220294474A1

公开(公告)日：2022-09-15

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

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 transmission 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.

公开(公告)号：US20190238158A1

公开(公告)日：2019-08-01

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 ,  G06F11/10 ,  G11C29/52

CPC classification number: H03M13/1108 ,  G06F11/1068 ,  G11C29/52

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.