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21.发明授权公开(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
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.
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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
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.
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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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26.发明申请公开(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
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.
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27.发明申请公开(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
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.
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公开(公告)号：US11258466B1
公开(公告)日：2022-02-22
申请号：US16819025
申请日：2020-03-13
Applicant: Kioxia Corporation
Inventor： Ofir Kanter , Avi Steiner , Hanan Weingarten
Abstract: A flash memory system may include a flash memory and a circuit for decoding a result of a read operation on the flash memory using a first codeword. The circuit may be configured to generate first soft information of the first codeword. The circuit may be further configured to generate second soft information of a second codeword. The circuit may be configured to generate third soft information based on the first soft information and the second soft information. The circuit may be configured to decode the result of the read operation on the flash memory using the third soft information.
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公开(公告)号：US11258464B1
公开(公告)日：2022-02-22
申请号：US16844725
申请日：2020-04-09
Applicant: Kioxia Corporation
Inventor： Avi Steiner , Hanan Weingarten
Abstract: Various implementations described herein relate to systems and methods for encoding and decoding data having input payload stored in a non-volatile storage device, including encoding the input payload by concatenating a plurality of short codewords to generate a plurality of encoded short codewords, and decoding the plurality of encoded short codewords to obtain the data, where each of the plurality of short codewords corresponding to a portion of the input payload.
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