公开(公告)号：US11050440B2

公开(公告)日：2021-06-29

申请号：US16658191

申请日：2019-10-21

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Chih-Huai Shih ,  Yu-Ming Huang ,  Hsiang-Pang Li ,  Hsi-Chia Chang

IPC: H03M13/00 ,  H03M13/25 ,  H03M13/15 ,  H03M13/29 ,  H03M13/11

Abstract: An encoding method includes: receiving, by an encoder, an information for encoding; generating, by the encoder, a first portion codeword according to a first encoding rule and the information for encoding, wherein the first encoding rule is an encoding rule configured to generate LDPC code; generating, by the encoder, a second portion codeword according to a second encoding rule different from the first encoding rule and a double check region of the first portion codeword; and concatenating, by the encoder, the first portion codeword and the second portion codeword to generate a codeword. A plurality of trapping sets corresponding to the first encoding rule include at least one error bit within the double check region.

公开(公告)号：US10972127B2

公开(公告)日：2021-04-06

申请号：US16446758

申请日：2019-06-20

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Yu-Ming Huang ,  Hsi-Chia Chang

IPC: H03M13/09 ,  H03M13/11 ,  H03M13/13 ,  H03M13/43

Abstract: The present disclosure provides a decoding system and method. The decoding system comprises a first decoder and a second decoder. The first decoder is configured to generate an intermediate decoding data by decoding a code data. The second decoder, coupled to the first decoder, wherein the second decoder is configured to generate a plain data by decoding the intermediate decoding data.

公开(公告)号：US10447436B2

公开(公告)日：2019-10-15

申请号：US15890500

申请日：2018-02-07

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Yu-Ming Huang ,  Chih-Huai Shih ,  Hsiang-Pang Li ,  Hsi-Chia Chang

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/13

Abstract: A method for generating a polar code includes the steps of: establishing a plurality of polarization matrices that receive a plurality of first input bits via a plurality of first input channels and provide a plurality of first output bits on a plurality of first output channels; selecting at least one to-be-enhanced input channel from the first input channels of the polarization matrices; providing a re-polarization matrix that receives a plurality of second input bits via a plurality of second input channels and provides a plurality of second output bits on a plurality of second output channels, wherein a part of the second output bits is used as the first output bit(s) on the at least one to-be-enhanced input channel; and providing a polar code that comprises the first output bits and a remaining part of the second output bits.

公开(公告)号：US09823961B1

公开(公告)日：2017-11-21

申请号：US15376715

申请日：2016-12-13

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Yu-Ming Huang ,  Yu-Ming Chang ,  Hsi-Chia Chang

IPC: G11C16/06 ,  G06F11/10 ,  G11C29/52 ,  G06F3/06

CPC classification number: G06F11/1048 ,  G11C7/1006 ,  G11C16/08 ,  G11C16/349 ,  G11C16/3495

Abstract: An operating method of a memory controller, for a memory device including a plurality of cells, includes steps of: checking states of the cells; marking at least one specific bit-channel according to the states of the cells; and performing an uneven wear leveling scheme on at least one target cell storing messages from the at least one specific bit-channel, such that the wear level of the at least one target cell is different from other cells.