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公开(公告)号:EP4040441A2
公开(公告)日:2022-08-10
申请号:EP22150726.2
申请日:2022-01-10
发明人: PARK, Sehwan , KIM, Jinyoung , PARK, Ilhan , SEO, Youngdeok
IPC分类号: G11C29/02
摘要: A memory device (10) may determine cell count information from a threshold voltage distribution of memory cells and may determine a detection case based on the cell count information when an error in read data, received from the memory device (10) performing a read operation is not corrected. A memory controller (20) may control the memory device (10) to execute a read operation using a development time determined in consideration of an offset voltage of a read voltage corresponding to the detection case. When an error in the read data is successfully corrected, the memory controller (20) may update a table (24), stored in the memory controller (20), using a dynamic offset voltage obtained by inputting the cell count information to a machine learning model (25).
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公开(公告)号:EP4160603A1
公开(公告)日:2023-04-05
申请号:EP22173468.4
申请日:2022-05-16
发明人: KANG, Woohyun , SEO, Youngdeok , KIM, Hyuna , OH, Hyunkyo , LEE, Heewon , LIM, Donghoo
摘要: Disclosed is a method of operating a storage controller which communicates with a non-volatile memory device. The method includes outputting a first command including a request for on-chip valley search (OVS) count data of a memory region of the non-volatile memory device to the non-volatile memory device, wherein the OVS count data include a first count value of a first read voltage and a second count value of a second read voltage, receiving the OVS count data from the non-volatile memory device, determining a first error count value for the first read voltage and a second error count value for the second read voltage, based on the OVS count data, and determining a subsequent operation, based on the first and second error count values.
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公开(公告)号:EP4152332A1
公开(公告)日:2023-03-22
申请号:EP22173512.9
申请日:2022-05-16
发明人: KANG, Woohyun , SEO, Youngdeok , KIM, Hyuna , OH, Hyunkyo , LIM, Donghoo
摘要: Disclosed is a method of operating a storage controller which communicates with a non-volatile memory device. The method includes outputting a first command including a request for on-chip valley search (OVS) count data of a memory region of the non-volatile memory device to the non-volatile memory device, wherein the OVS count data includes a first count value and a second count value of a first read voltage and a third count value and a fourth count value of a second read voltage, receiving the OVS count data from the non-volatile memory device, determining a distribution type of the memory region to be a predicted distribution type, from among a plurality of distribution types, based on the OVS count data, and determining a subsequent operation, based on the predicted distribution type.
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公开(公告)号:EP4040441A3
公开(公告)日:2022-08-17
申请号:EP22150726.2
申请日:2022-01-10
发明人: PARK, Sehwan , KIM, Jinyoung , PARK, Ilhan , SEO, Youngdeok
摘要: A memory device (10) may determine cell count information from a threshold voltage distribution of memory cells and may determine a detection case based on the cell count information when an error in read data, received from the memory device (10) performing a read operation is not corrected. A memory controller (20) may control the memory device (10) to execute a read operation using a development time determined in consideration of an offset voltage of a read voltage corresponding to the detection case. When an error in the read data is successfully corrected, the memory controller (20) may update a table (24), stored in the memory controller (20), using a dynamic offset voltage obtained by inputting the cell count information to a machine learning model (25).
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公开(公告)号:EP4030434A1
公开(公告)日:2022-07-20
申请号:EP21196579.3
申请日:2021-09-14
发明人: SHIN, Dongmin , KIM, Jinyoung , PARK, Sehwan , SEO, Youngdeok
摘要: A controller (400) including a non-volatile memory interface circuit (460) connected to at least one non-volatile memory device (300) and configured to control the at least one non-volatile memory device (300); an error correction circuit (430) configured to perform an error correction operation on a codeword received from the non-volatile memory interface circuit (460) according to an error correction decoding level from among a plurality of error correction decoding levels, wherein the non-volatile memory interface circuit (460) is further configured to: receive side information from the at least one non-volatile memory device (300); predict a distribution of memory cells based on the side information; and select the error correction decoding level from among the plurality of error correction decoding levels according to the predicted distribution.
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公开(公告)号:EP4318248A1
公开(公告)日:2024-02-07
申请号:EP23161994.1
申请日:2023-03-15
发明人: KANG, Woohyun , KIM, Jin-Young , KIM, Hyuna , PARK, Se Hwan , SEO, Youngdeok , OH, Hyunkyo , LEE, Heewon , LIM, Donghoo
摘要: A method of operating a non-volatile memory device, which is configured to communicate with a storage controller includes: receiving a first request indicating a read reclaim determination and including environment information from the storage controller, performing a first on-chip read operation for generating first distribution information based on the first request, determining whether a read reclaim is required based on the first distribution information, and providing the storage controller with a determination result having a first bit value in response to determining that the read reclaim is required.
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7.
公开(公告)号:EP4198988A1
公开(公告)日:2023-06-21
申请号:EP22195930.7
申请日:2022-09-15
发明人: KIM, Hyuna , KANG, Woohyun , SEO, Youngdeok , OH, Hyunkyo , LIM, Donghoo
IPC分类号: G11C29/02 , G11C29/44 , G11C29/52 , G11C16/04 , G11C16/26 , G11C16/34 , G11C29/04 , G11C29/12 , G11C29/16 , G11C29/20
摘要: Disclosed is a storage controller which includes a history table and communicates with a non-volatile memory device. A method of operating the storage controller includes determining whether history data of a target memory block are registered at the history table, providing a history read request for the target memory block based on the history data when it is determined that the history data are registered, receiving first raw data corresponding to the history read request from the non-volatile memory device, generating skew information of the target memory block based on the first raw data and the history data, and determining whether to perform a read reclaim operation of the target memory block, based on the skew information.
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8.
公开(公告)号:EP3992970A1
公开(公告)日:2022-05-04
申请号:EP21182404.0
申请日:2021-06-29
发明人: PARK, Sehwan , KIM, Jinyoung , SEO, Youngdeok , PARK, Ilhan
摘要: A storage device includes at least one non-volatile memory device and a controller configured to control the at least one non-volatile memory device. The at least one non-volatile memory device performs an on-chip valley search (OVS) operation by latching a read command at an edge of a write enable (WE) signal according to a command latch enable (CLE) signal and an address latch enable (ALE) signal. The controller receives detection information according to the OVS operation from the at least one non-volatile memory device in response to a specific command. The OVS operation includes a first OVS operation using a read level and a second OVS operation using a changed read level.
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公开(公告)号:EP3955255A1
公开(公告)日:2022-02-16
申请号:EP21184918.7
申请日:2021-07-09
发明人: CHOI, Sanghyun , SEO, Youngdeok , ROH, Kangho
摘要: A storage device performs a read operation by restoring an ON cell count (OCC) from a power loss protection (PLP) area of a nonvolatile memory. The nonvolatile memory includes a memory blocks, a buffer memory and a controller. The buffer memory stores a first ON cell count (OCC1) indicating a number of memory cells turned ON by a first read voltage and a second ON cell count (OCC2) indicating a number of memory cells turned ON by a second read voltage among the memory cells connected to a reference word line. The controller stores the OCC1 for each of the memory blocks in the PLP area when a sudden power off occurs in the storage device.
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公开(公告)号:EP4310847A3
公开(公告)日:2024-03-27
申请号:EP23163079.9
申请日:2023-03-21
发明人: KANG, Woohyun , JEON, Su Chang , KIM, Suhyun , KIM, Hyuna , SEO, Youngdeok , OH, Hyunkyo , LIM, Donghoo , CHUN, Byungkwan
摘要: Disclosed is a method of operating a storage controller which communicates with a non-volatile memory device. The method includes providing a read command to the non-volatile memory device, receiving first read data and first distribution information corresponding to the read command from the non-volatile memory device, determining whether an error of the first read data is uncorrectable, and updating offset information of a history table in the storage controller based on the first distribution information, in response to determining that the error of the first read data is correctable.
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