公开(公告)号：US20230326528A1

公开(公告)日：2023-10-12

申请号：US17714379

申请日：2022-04-06

申请人： Western Digital Technologies, Inc.

发明人： Eran Sharon ,  Nika Yanuka ,  Idan Alrod ,  Alexander Bazarsky ,  Evgeny Mekhanik

IPC分类号： G11C16/10 ,  G11C16/26 ,  G11C16/08 ,  G11C16/24 ,  G11C7/04

CPC分类号： G11C16/102 ,  G11C16/26 ,  G11C16/08 ,  G11C16/24 ,  G11C7/04 ,  G11C2207/2254

摘要： A system and method for calibrating read threshold voltages includes performing a plurality of read operations, determining to perform a read level tracking method, and performing the read level tracking method. The determining may be based on a temperature change or a bit error rate (BER). The read level tracking method includes determining the BER of an indicative word line, determining an adjusted read threshold level based on the BER, and adjusting read threshold levels according to the adjusted read threshold level.

公开(公告)号：US12020751B2

公开(公告)日：2024-06-25

申请号：US17714379

申请日：2022-04-06

申请人： Western Digital Technologies, Inc.

发明人： Eran Sharon ,  Nika Yanuka ,  Idan Alrod ,  Alexander Bazarsky ,  Evgeny Mekhanik

IPC分类号： G11C16/04 ,  G11C7/04 ,  G11C16/08 ,  G11C16/10 ,  G11C16/24 ,  G11C16/26

CPC分类号： G11C16/102 ,  G11C7/04 ,  G11C16/08 ,  G11C16/24 ,  G11C16/26 ,  G11C2207/2254

摘要： A system and method for calibrating read threshold voltages includes performing a plurality of read operations, determining to perform a read level tracking method, and performing the read level tracking method. The determining may be based on a temperature change or a bit error rate (BER). The read level tracking method includes determining the BER of an indicative word line, determining an adjusted read threshold level based on the BER, and adjusting read threshold levels according to the adjusted read threshold level.

公开(公告)号：US20230410869A1

公开(公告)日：2023-12-21

申请号：US17899073

申请日：2022-08-30

申请人： Western Digital Technologies, Inc.

发明人： Eran Sharon ,  Ariel Navon ,  Alexander Bazarsky ,  David Avraham ,  Nika Yanuka ,  Idan Alrod

IPC分类号： G06F3/06 ,  G11C16/26

CPC分类号： G06F3/0619 ,  G06F3/0679 ,  G11C16/0483 ,  G11C16/26 ,  G06F3/0653

摘要： A storage system has an inference engine that can infer a read threshold based on a plurality of parameters of the memory. The read threshold can be used in reading a wordline in the memory during a regular read operation or as part of an error handling process. Using this machine-learning-based approach to infer a read threshold can provide significant improvement in read threshold accuracy, which can reduce bit error rate and improve latency, throughput, power consumption, and quality of service. In another embodiment, a storage system is configured to use a binary full-depth symmetrically-sorted tree to infer a read threshold based on a plurality of parameters of the memory.

公开(公告)号：US20230402112A1

公开(公告)日：2023-12-14

申请号：US17838481

申请日：2022-06-13

申请人： Western Digital Technologies, Inc.

发明人： Eran Sharon ,  Ariel Navon ,  Alexander Bazarsky ,  David Avraham ,  Nika Yanuka ,  Idan Alrod ,  Tsiko Shohat Rozenfeld ,  Ran Zamir

IPC分类号： G11C16/34 ,  G11C16/10 ,  G11C16/14 ,  G11C16/26 ,  G11C16/08 ,  G11C29/52

CPC分类号： G11C16/3459 ,  G11C16/3495 ,  G11C16/102 ,  G11C16/14 ,  G11C16/26 ,  G11C16/08 ,  G11C29/52

摘要： A storage system has an inference engine that can infer a read threshold based on a plurality of parameters of the memory. The read threshold can be used in reading a wordline in the memory during a regular read operation or as part of an error handling process. Using this machine-learning-based approach to infer a read threshold can provide significant improvement in read threshold accuracy, which can reduce bit error rate and improve latency, throughput, power consumption, and quality of service.

公开(公告)号：US20230402072A1

公开(公告)日：2023-12-14

申请号：US18220363

申请日：2023-07-11

申请人： Western Digital Technologies, Inc.

发明人： Alexander Bazarsky ,  Ariel Navon ,  Eran Sharon ,  David Avraham ,  Nika Yanuka ,  Idan Alrod

IPC分类号： G11C7/10 ,  G11C11/54

CPC分类号： G11C7/1069 ,  G11C7/1063 ,  G11C11/54

摘要： A storage system has an inference engine that can infer a read threshold based on a plurality of parameters of the memory. The read threshold can be used in reading a wordline in the memory during a regular read operation or as part of an error handling process. Using a machine-learning-based approach to infer a read threshold can provide significant improvement in read threshold accuracy, which can reduce bit error rate and improve latency, throughput, power consumption, and quality of service. In another embodiment, a circuit-bounded array is used to manage updates to time and temperature tag information and to infer read thresholds.

公开(公告)号：US20190179543A1

公开(公告)日：2019-06-13

申请号：US15839668

申请日：2017-12-12

申请人： Western Digital Technologies, Inc.

发明人： ERAN SHARON ,  Yoav Weinberg ,  Karin Inbar ,  Omer Fainzilber ,  Stella Achtenberg ,  Nika Yanuka

IPC分类号： G06F3/06

摘要： Apparatuses, systems, methods, and computer program products are disclosed for seed generation. An apparatus includes a memory element. An apparatus includes a scrambler component. A scrambler component includes a random seed generation circuit that generates a random seed. A scrambler component includes a deterministic seed generation circuit that generates a deterministic seed based on a physical address of a memory element for storing data. A scrambler component includes a computation circuit that forms a computed seed based on a random seed and a deterministic seed. Data is scrambled using a computed seed before data is stored.