公开(公告)号：US20230085730A1

公开(公告)日：2023-03-23

申请号：US18070056

申请日：2022-11-28

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Amir Nassie ,  Anat Rot ,  Ofir Kanter ,  Hanan Weingarten

IPC: G06F11/10 ,  H03M13/11 ,  H03M13/29

Abstract: Various implementations described herein relate to systems and methods for decoding data stored in a non-volatile storage device, including determining error candidates and determining whether at least one first error candidate from the error candidates is found based on two of the component codes agreeing on a same error candidate. In addition, whether at least one second error candidate is found based on two of the component codes agreeing on a same error candidate is determined in response to implementing a suggested correction at one of the error candidates. Errors in the data are corrected based on at least one of whether the at least one first error candidate is found or whether the at least one second error candidate is found.

公开(公告)号：US11082069B1

公开(公告)日：2021-08-03

申请号：US16843774

申请日：2020-04-08

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Hanan Weingarten

IPC: H03M13/00 ,  H03M13/15 ,  H03M13/39 ,  H03M13/11

Abstract: Various implementations described herein relate to systems and methods for decoding data stored in a non-volatile storage device, including determining features for each of a plurality of component codes corresponding to the data by decoding each of the plurality of component codes, determining an extrinsic value output for each of the component codes based on the features, and after the extrinsic value output for each of the component codes is determined, decoding each of the plurality of component codes based on the extrinsic value outputs of all other component codes of the component codes. Each of the component codes depends on all other component codes.

公开(公告)号：US12283972B2

公开(公告)日：2025-04-22

申请号：US18341041

申请日：2023-06-26

Applicant: Kioxia Corporation

Inventor： Ofir Kanter ,  Avi Steiner ,  Amir Nassie ,  Hanan Weingarten

IPC: H03M13/11 ,  H03M13/29

Abstract: Example implementations include a method of optimizing irregular error correction code components in memory devices, a method including obtaining one or more code rate parameters including a payload size parameter, a group size parameter, and a redundancy parameter generating a first number of first code component blocks associated with a first error correction capability, and a second number of code component blocks associated with a second error correction capability aligning the first code component blocks and the second code component blocks to the group size parameter aligning the first code component blocks and the second code component blocks to a code component length constraint, and generating, in accordance with an optimization metric based on the first error correction capability and the second error correction capability, first optimized code components based on the first code component blocks and second optimized code components based on the second code component blocks.

公开(公告)号：US20250124990A1

公开(公告)日：2025-04-17

申请号：US18999600

申请日：2024-12-23

Applicant: Kioxia Corporation

Inventor： Eyal Nitzan ,  Avi Steiner ,  Hanan Weingarten ,  Yasuhiko Kurosawa

IPC: G11C16/34 ,  H03M13/01 ,  H03M13/11 ,  H03M13/43

Abstract: A method for reading data from an SSD, comprising: retrieving data from a target row of memory cells using initial threshold voltages; decoding the data using a first hard decision decoding stage; estimating a bit error rate (BER) of a target row of memory cells based on a distribution of threshold voltages of cells in a memory block containing the target row when the first hard decision decoding stage fails; classifying the BER of the target row based on a first BER threshold (BER-TH1); and executing a first read flow comprising at least one hard decision decoding stage if the BER is less than the BER-TH1, and executing a second read flow similar to the first read flow if the BER is greater than or equal to the BER-TH1, the second read flow skipping a hard decision decoding stage of the first read flow.

公开(公告)号：US12260129B2

公开(公告)日：2025-03-25

申请号：US18124407

申请日：2023-03-21

Applicant: Kioxia Corporation

Inventor： Ofir Kanter ,  Avi Steiner

IPC: G06F3/06 ,  G06F11/10 ,  G11C11/56 ,  G11C16/04 ,  G11C16/26

Abstract: Disclosed herein are related to a system and a method for adjusting a read voltage threshold to read data from a plurality of memory dies of a nonvolatile memory device. Each of the plurality of memory dies comprises a plurality of blocks. A controller in communication with the plurality of memory dies may read, from a first block of the plurality of blocks, data corresponding to a read command received from a host. The controller may determine a bit error rate for the first block based on the data. The controller may update the read voltage threshold for the first block when the bit error rate for the first block exceeds a first error threshold. The read voltage threshold may be stored in the controller.

公开(公告)号：US12210412B2

公开(公告)日：2025-01-28

申请号：US18070056

申请日：2022-11-28

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Amir Nassie ,  Anat Rot ,  Ofir Kanter ,  Hanan Weingarten

IPC: G06F11/10 ,  H03M13/11 ,  H03M13/29

Abstract: Various implementations described herein relate to systems and methods for decoding data stored in a non-volatile storage device, including determining error candidates and determining whether at least one first error candidate from the error candidates is found based on two of the component codes agreeing on a same error candidate. In addition, whether at least one second error candidate is found based on two of the component codes agreeing on a same error candidate is determined in response to implementing a suggested correction at one of the error candidates. Errors in the data are corrected based on at least one of whether the at least one first error candidate is found or whether the at least one second error candidate is found.

公开(公告)号：US20240313806A1

公开(公告)日：2024-09-19

申请号：US18184916

申请日：2023-03-16

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Ofir Kanter ,  Hanan Weingarten ,  Assaf Sella ,  Nimrod Bregman ,  Yasuhiko Kurosawa

IPC: H03M13/29 ,  H03M13/11

CPC classification number: H03M13/2909 ,  H03M13/1105

Abstract: Systems, methods, non-transitory computer-readable media configured to perform operations associated with a storage medium. One system includes the storage medium and an encoding/decoding (ED) system, the ED system being configured to receive a set of input log-likelihood ratios (LLRs) of a component of the plurality of components, determine an extrinsic estimation function based on a set of features of the set of input LLRs, analyze the extrinsic estimation function to obtain a plurality of extrinsic LLR values, map the plurality of extrinsic LLR values to an input LLR of the set of input LLRs, and output, for each component, a plurality of updated LLR values based on the mapping.

公开(公告)号：US11734107B2

公开(公告)日：2023-08-22

申请号：US16355555

申请日：2019-03-15

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Hanan Weingarten ,  Meir Nadam-Olegnowicz ,  Ofir Kanter ,  Amir Nassie

IPC: G06F11/10 ,  G11C29/00 ,  G06F11/00

CPC classification number: G06F11/1068 ,  G06F11/004 ,  G06F11/1028 ,  G11C29/781 ,  G11C29/844

Abstract: Various implementations described herein relate to systems and methods for performing error correction in a flash memory device by determining suggested corrections by decoding a codeword. In addition, whether a first set of the suggested corrections obtained based on a first component code of the plurality of component codes agree with a second set of the suggested corrections obtained based on a second component code of the plurality of component codes is determined. One of accepting the first set of the suggested corrections or rejecting the first set of the suggested corrections is selected based on whether the first set of the suggested corrections and the second set of the suggested corrections agree.

公开(公告)号：US20230057711A1

公开(公告)日：2023-02-23

申请号：US17406929

申请日：2021-08-19

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Hanan Weingarten ,  Yasuhiko Kurosawa

IPC: G11C16/34 ,  G06F3/06 ,  G11C16/04 ,  G11C16/26

Abstract: A method for dynamically estimating interference compensation thresholds of a page of memory includes performing a mock read on a target row using a mock read threshold, performing a read operation on an interference source and reading an interference state of the interference source, computing a histogram and a corresponding threshold based on the mock read threshold and the interference state of the interference source, and estimating a read threshold to dynamically compensate the interference state of the target row based on the histogram.

公开(公告)号：US20220199183A1

公开(公告)日：2022-06-23

申请号：US17131509

申请日：2020-12-22

Applicant: Kioxia Corporation

Inventor： Avi Steiner ,  Hanan Weingarten ,  Yasuhiko Kurosawa ,  Neil Buxton

IPC: G11C29/42 ,  G11C29/44 ,  G11C16/10 ,  G11C16/26

Abstract: Various implementations described herein relate to systems and methods for programming data, including determining a target row corresponding to a program command and setting row-based programming parameters for the target row using target physical device parameters of the target row and optimized programming parameters corresponding to the physical device parameters.