Patents by Inventor Karl D. Schuh

Karl D. Schuh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240086316
    Abstract: A system includes a memory device and a processing device communicatively coupled to the memory device. The processing device is to write data to a number of groups of memory cells of the memory device in a physically non-contiguous manner. The processing device is further to track a sequence in which the number of groups of memory cells were written with the data. In response to a trigger event, the processing device is further to identify at least a portion of the number of groups of memory cells having data received over a predefined period preceding the trigger event based at least in part on the tracked sequence.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 14, 2024
    Inventors: Karl D. Schuh, Vamsi Pavan Rayaprolu, Jiangang Wu, Kishore K. Muchherla
  • Patent number: 11928347
    Abstract: A processing device of a memory sub-system is configured to sort a plurality of blocks of the memory device; identify, based on scanning of a first block at a first location of the plurality of sorted block, a first voltage bin associated with the first block; identify, based on scanning of a second block at a second location of the plurality of sorted blocks, a second voltage bin associated with the second block; and responsive to determining that the first voltage bin matches the second voltage bin, assign the first voltage bin to each block that is located between the first location of the plurality of sorted blocks and the second location of the plurality of sorted blocks.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: March 12, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Kishore Kumar Muchherla, Mustafa N Kaynak, Peter Feeley, Sampath K Ratnam, Shane Nowell, Sivagnanam Parthasarathy, Karl D Schuh, Jiangang Wu
  • Patent number: 11886336
    Abstract: A system includes a memory device having multiple dice and a processing device operatively coupled to the memory device. The processing device receives a memory operation to program a set of pages of data across at least a subset of the plurality of dice. The processing device partitions the set of pages into a set of partitions and associates a first partition of the set of partitions with a first block family. The processing device assigns the first block family to a first threshold voltage offset bin and stores, in a metadata table, at least one bit to indicate that the set of pages is partitioned.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: January 30, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Kishore Kumar Muchherla, Karl D. Schuh, Jiangang Wu, Mustafa N. Kaynak, Devin M. Batutis, Xiangang Luo
  • Patent number: 11861228
    Abstract: Exemplary methods, apparatuses, and systems include aggregating a plurality of memory status commands Each command of the plurality of memory status commands is assigned a corresponding bit on a memory interface. The plurality of memory status commands are sent in parallel as an aggregate status command to one or more memory components via the memory interface.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 2, 2024
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Karl D. Schuh, Ali Mohammadzadeh, Dheeraj Srinivasan, Daniel J. Hubbard, Luca Bert
  • Patent number: 11847051
    Abstract: A system includes a memory device and a processing device coupled to the memory device. The processing device can determine a data rate from a first sensor and a data rate from a second sensor. The processing device can write a first set of data received from the first sensor at a first logical block address (LBA) in the memory device. The processing device can write a second set of data received from the second sensor and subsequent to the first set of data at a second LBA in the memory device. The processing device can remap the first LBA and the second LBA to be logically sequential LBAs. The second LBA can be associated with an offset from the first LBA and the offset can correspond to a data rate of the first sensor.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: December 19, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kishore K. Muchherla, Vamsi Pavan Rayaprolu, Karl D. Schuh, Jiangang Wu, Gil Golov
  • Patent number: 11841794
    Abstract: A system includes a memory device and a processing device communicatively coupled to the memory device. The processing device is to write data to a number of groups of memory cells of the memory device in a physically non-contiguous manner. The processing device is further to track a sequence in which the number of groups of memory cells were written with the data. In response to a trigger event, the processing device is further to identify at least a portion of the number of groups of memory cells having data received over a predefined period preceding the trigger event based at least in part on the tracked sequence.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: December 12, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Karl D. Schuh, Vamsi Pavan Rayaprolu, Jiangang Wu, Kishore K. Muchherla
  • Patent number: 11836377
    Abstract: Data from a host system is received at a memory device, where the memory device includes a primary region to initially store the data received from the host system and one or more secondary regions to store data transferred from the primary region. A write operation is performed on one or more write units of the primary region with the data received from the host system, where a write unit of the primary region has lower density blocks than a write unit of the secondary region. Whether a subset of write units of the primary region corresponding to a pre-determined number of write units is written with at least a portion of the data received from the host system is determined. In response to determining that the subset of write units of the primary region is written, another write operation is performed on at least one write units of the secondary region with respective data of the subset of write units of the primary region.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: December 5, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Abdelhakim Alhussien, Ayberk Ozturk, Karl D. Schuh, Luca Bert
  • Patent number: 11797216
    Abstract: A signal associated with performance of a memory operation can be applied to a memory cell of a first group of memory cells that have undergone PECs within a first range. The signal can have a first magnitude corresponding to a second range of PECs. Whether differences between a first target voltage and the signal and between a second target voltage and the applied signal are at least the threshold value can be determined. Responsive to determining that the differences are at least the threshold value, the first group of memory cells can be associated with a first calibration cluster and the signal having a second magnitude corresponding to a third range of PECs can be applied to a memory cell of a second group of memory cells that have undergone respective quantities of PECs within the second range.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: October 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Vamsi Pavan Rayaprolu, Giuseppina Puzzilli, Karl D. Schuh, Jeffrey S. McNeil, Jr., Kishore K. Muchherla, Ashutosh Malshe, Niccolo' Righetti
  • Patent number: 11797435
    Abstract: A zone is loaded onto a first memory component of a storage system, wherein the zone comprises one or more regions of data blocks comprising a first plurality of logical block addresses (LBAs), and a snapshot of each of the one or more regions is stored on a second memory component of the storage system and is associated with a version identifier. A particular version identifier associated with a respective snapshot of a region is identified, and a set of journals stored on the second memory component are identified, wherein the set of journals comprise a second plurality of LBAs mapped to a second plurality of physical block addresses.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: October 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Daniel A. Boals, Byron D. Harris, Karl D. Schuh, Amy L. Wohlschlegel
  • Patent number: 11783901
    Abstract: A system includes a memory device and a processing device. The processing device performs, at a first frequency, a first scan of a page of a block family that measures a first data state metric and identifies a specific bin corresponding to a measured value for the first data state metric. Processing device updates a bin, to which the page is assigned, to match the specific bin. Processing device performs, at a second frequency higher than the first frequency, a second scan of the page to measure a second data state metric for read operations performed using a threshold voltage offset value from each of multiple bins. Processing device updates the bin, to which the page is assigned for the specified die, to match a second bin having the threshold voltage offset value that yields a lowest read bit error rate from the second scan.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: October 10, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kishore Kumar Muchherla, Shane Nowell, Mustafa N. Kaynak, Karl D. Schuh, Jiangang Wu, Devin M. Batutis, Xiangang Luo
  • Patent number: 11762765
    Abstract: A zone is loaded onto a first memory component of a storage system, wherein the zone comprises one or more regions of data blocks comprising a first plurality of logical block addresses (LBAs), and a snapshot of each of the one or more regions is stored on a second memory component of the storage system and is associated with a version identifier. A particular version identifier associated with a respective snapshot of a region is identified, and a set of journals stored on the second memory component are identified, wherein the set of journals comprise a second plurality of LBAs mapped to a second plurality of physical block addresses.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: September 19, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Daniel A. Boals, Byron D. Harris, Karl D. Schuh, Amy L. Wohlschlegel
  • Patent number: 11748013
    Abstract: An initial value of a power cycle count associated with the memory device is identified. The power cycle count is incremented responsive to detecting a powering up of the memory device. Responsive to programming a block residing in the memory device, the block is associated with a current block family associated with the memory device. A currently value of the power cycle count is determined. Responsive to determining that a difference between the initial value of the power cycle count and the current value of the power cycle count satisfies a predefined condition, the current block family is closed.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: September 5, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kishore Kumar Muchherla, Mustafa N. Kaynak, Jiangang Wu, Sampath K. Ratnam, Sivagnanam Parthasarathy, Peter Feeley, Karl D. Schuh
  • Publication number: 20230251779
    Abstract: Exemplary methods, apparatuses, and systems include determining that a memory component to be subjected to a background data integrity scan does not currently satisfy an activity threshold. The background data integrity scan is delayed in response to determining memory component does not satisfy the activity threshold. In response to detecting a background data integrity scan trigger event, the background data integrity scan is performed.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 10, 2023
    Inventors: Karl D. Schuh, William Richard Akin
  • Patent number: 11698864
    Abstract: A processing device in a memory sub-system sends a program command to the memory device to cause the memory device to initiate a program operation on a corresponding wordline and sub-block of a memory array of the memory device. The processing device further receives a request to perform a read operation on data stored on the wordline and sub-block of the memory array, sends a suspend command to the memory device to cause the memory device to suspend the program operation, reads data corresponding to the read operation from a page cache of the memory device, and sends a resume command to the memory device to cause the memory device to resume the program operation.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: July 11, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Abdelhakim Alhussien, Jiangang Wu, Karl D. Schuh, Qisong Lin, Jung Sheng Hoei
  • Publication number: 20230205438
    Abstract: A processing device of a memory sub-system is configured to sort a plurality of blocks of the memory device; identify, based on scanning of a first block at a first location of the plurality of sorted block, a first voltage bin associated with the first block; identify, based on scanning of a second block at a second location of the plurality of sorted blocks, a second voltage bin associated with the second block; and responsive to determining that the first voltage bin matches the second voltage bin, assign the first voltage bin to each block that is located between the first location of the plurality of sorted blocks and the second location of the plurality of sorted blocks.
    Type: Application
    Filed: February 27, 2023
    Publication date: June 29, 2023
    Inventors: Kishore Kumar Muchherla, Mustafa N. Kaynak, Peter Feeley, Sampath K. Ratnam, Shane Nowell, Sivagnanam Parthasarathy, Karl D. Schuh, Jiangang Wu
  • Publication number: 20230205455
    Abstract: Exemplary methods, apparatuses, and systems include receiving a request to perform an operation in memory. A subdivision of the memory to which the request is directed is determined. A command completion time based upon a command type for the operation and which subdivision of the memory to which the request is directed is determined. A command is sent to the memory for the operation. A request is sent to the memory for a status of the command based upon the determined command completion time.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 29, 2023
    Inventors: Karl D. Schuh, Daniel J. Hubbard
  • Patent number: 11688479
    Abstract: A first group of memory cells of a memory device can be subjected to a particular quantity of program/erase cycles (PECs) in response to a programming operation performed on a second group of memory cells of the memory device. Subsequent to subjecting the first group of memory cells to the particular quantity of PECs, a data retention capability of the first group of memory cells can be assessed.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: June 27, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Vamsi Pavan Rayaprolu, Giuseppina Puzzilli, Karl D. Schuh, Jeffrey S. McNeil, Jr., Kishore K. Muchherla, Ashutosh Malshe, Niccolo' Righetti
  • Patent number: 11676664
    Abstract: A processing device of a memory sub-system is configured to detect a power on event that is associated with a memory device and indicates that power has been restored to the memory device; estimate a duration of a power off state preceding the power on event associated with the memory device; and update voltage bin assignments of a plurality of blocks associated with the memory device based on the duration of the power off state.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: June 13, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kishore Kumar Muchherla, Sampath K. Ratnam, Shane Nowell, Sivagnanam Parthasarathy, Mustafa N. Kaynak, Karl D. Schuh, Peter Feeley, Jiangang Wu
  • Publication number: 20230176963
    Abstract: A system includes a memory device having multiple dice and a processing device operatively coupled to the memory device. The processing device receives a memory operation to program a set of pages of data across at least a subset of the plurality of dice. The processing device partitions the set of pages into a set of partitions and associates a first partition of the set of partitions with a first block family. The processing device assigns the first block family to a first threshold voltage offset bin and stores, in a metadata table, at least one bit to indicate that the set of pages is partitioned.
    Type: Application
    Filed: January 31, 2023
    Publication date: June 8, 2023
    Inventors: Kishore Kumar Muchherla, Karl D. Schuh, Jiangang Wu, Mustafa N. Kaynak, Devin M. Batutis, Xiangang Luo
  • Publication number: 20230122275
    Abstract: A method includes initiating a voltage calibration scan with respect to a block of a memory device, wherein the block is assigned to a first bin associated with a first set of read voltage offsets, and wherein the first bin is designated as a current bin, measuring a value of a data state metric for the block based on a second set of read voltage offsets associated with a second bin having an index value higher than the first bin, determining whether the value is less than a current value of the data state metric measured based on the first set of read voltage offsets, and in response to determining that the value is less than the current value, designating the second bin as the current bin.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Kishore Kumar Muchherla, Mustafa N. Kaynak, Sivagnanam Parthasarathy, Xiangang Luo, Peter Feeley, Devin M. Batutis, Jiangang Wu, Sampath K. Ratnam, Shane Nowell, Karl D. Schuh