公开(公告)号：US11790984B1

公开(公告)日：2023-10-17

申请号：US17703199

申请日：2022-03-24

Applicant: Kioxia Corporation

Inventor： Nimrod Bregman ,  Ofir Kanter

IPC: G11C11/4099 ,  G11C11/4096 ,  G11C11/54 ,  G06F18/22 ,  G06F18/214

CPC classification number: G11C11/4099 ,  G06F18/214 ,  G06F18/22 ,  G11C11/4096 ,  G11C11/54

Abstract: A flash memory system may include a flash memory and a circuit for performing operations on the flash memory. The circuit may be configured to obtain reference voltages from one or more read samples, and a plurality of sets of reference voltages. The circuit may be configured to obtain a plurality of distances, each being a distance between a point corresponding to the obtained reference voltages and a point corresponding to a respective set of reference voltages. The circuit may be configured to determine a first set of reference voltages such that a distance between the point corresponding to the obtained reference voltages and a point corresponding to the first set of reference voltage is a minimum distance of the plurality of distances. The circuit may be configured to perform read operations on locations of the flash memory with the first set of reference voltages.

公开(公告)号：US12176924B2

公开(公告)日：2024-12-24

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: H03M13/00 ,  H03M13/11 ,  H03M13/29

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：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：US20230307037A1

公开(公告)日：2023-09-28

申请号：US17703199

申请日：2022-03-24

Applicant: Kioxia Corporation

Inventor： Nimrod Bregman ,  Ofir Kanter

IPC: G11C11/4099 ,  G11C11/4096 ,  G11C11/54 ,  G06K9/62

CPC classification number: G11C11/4099 ,  G11C11/4096 ,  G11C11/54 ,  G06K9/6215 ,  G06K9/6256

Abstract: A flash memory system may include a flash memory and a circuit for performing operations on the flash memory. The circuit may be configured to obtain reference voltages from one or more read samples, and a plurality of sets of reference voltages. The circuit may be configured to obtain a plurality of distances, each being a distance between a point corresponding to the obtained reference voltages and a point corresponding to a respective set of reference voltages. The circuit may be configured to determine a first set of reference voltages such that a distance between the point corresponding to the obtained reference voltages and a point corresponding to the first set of reference voltage is a minimum distance of the plurality of distances. The circuit may be configured to perform read operations on locations of the flash memory with the first set of reference voltages.