Abstract: A memory system includes a memory device and a processing device coupled to the memory device. The processing device receives a plurality of codewords; determines that one or more codewords of the plurality of codewords are corrupt; selects a first read voltage associated with the one or more codewords, such that the first read voltage is based on a second read voltage utilized for reading the one or more codewords in a previous read operation; and applies the first read voltage to a set of memory cells storing the one or more corrupted codewords.

Abstract: A partition command is stored at free memory address location of the local memory corresponding to an index of an address array. The index is associated with an entry in the address array. A last entry in a linked list of entries from a tail register is obtained based on an allocation of the stored partition command to a partition command queue of a plurality of partition command queues. The tail register corresponds to the partition command queue of the plurality of partition command queues. Responsive to obtaining the last entry in the linked list, an entry to the linked list after the last entry is appended. The entry corresponds to the index of the address array associated with the stored partition command.

Abstract: A method includes performing, over a time period, a quantity of write operations associated with a quad-level cell (QLC) memory block, determining the time period exceeds a threshold time, designating the QLC memory block as a bimodal, determining a voltage threshold level of a last successful read operation associated with the QLC memory block, and setting a read threshold level of at least a portion of the QLC memory block at the voltage threshold level of the last successful read operation.

Abstract: Methods, apparatuses and systems related to managing deck-specific read levels are described. The apparatus may include a memory array having the memory cells organized into two or more decks. The apparatus can determine a delay between programming the decks. The apparatus can derive and implement the deck-specific read levels by selectively adjusting a base read level with an offset level according to the delay and/or the targeted read location.

Abstract: Methods, apparatuses and systems related to protecting an apparatus against unauthorized accesses or usages are described. The apparatus may include a data protection circuit that protects an operating state of the apparatus, data stored in the apparatus, or a combination thereof when a temperature of the apparatus is outside of an operating range thereof.

Abstract: A memory system includes a memory device and a processing device operatively coupled with the memory device. The processing device perform operations comprising receiving an indication that a first memory access operation performed in response to a first memory access command is complete, wherein the first memory access operation is associated with a first CAM entry comprising an identifier of a second CAM entry; identifying the second CAM entry using the indicator, wherein the second CAM entry references a second memory access command; and issuing, to the memory device, the second memory access command.

Abstract: A determination is made of whether a memory sub-system operates in a full capacity mode or a reduced capacity mode. The full capacity mode corresponds to accessing data residing at a set of memory devices via a number of physical data channels that corresponds to a number of logical data channels. The reduced capacity mode corresponds to accessing the data via a number of physical data channels that is less than the number of logical data channels. A data structure is updated to include one or more mappings between physical data channels and logical data channels according to the determination. A memory access operation to access a data item at memory cells of at least one of the set of memory devices is executed based on the one or more mappings of the data structure.

Abstract: An airbag cushion assembly includes an airbag cushion and an inflation-deflation apparatus that communicates with the airbag cushion. The airbag cushion includes a plurality of sub-airbags, and an airbag gap is formed between adjacent sub-airbags. The inflation-deflation apparatus is provided with an exhaust port, the exhaust port is provided in the airbag gap, and the inflation-deflation apparatus is configured to inflate and deflate the airbag cushion. For the airbag cushion assembly, the exhaust port is provided in the airbag gap, air exhausted by the airbag cushion takes away damp air accumulated between a patient and the airbag cushion, to reduce humidity of the contact area between the patient and the airbag cushion, thereby achieving a pressure sore prevention effect.

Abstract: A system can include a memory devices and a processing device coupled with the memory devices. The processing device can receive a command and determine whether the command includes a value for a voltage associated with a read at the memory device. The processing device can also, responsive to the command failing to specify the value, select a second value, from multiple values, for the voltage associated with the read at the memory device based at on a duration subsequent to a previous write operation satisfying a threshold criterion. The processing device can also apply the voltage having the second value at memory cells of the memory device to determine a logic state for the memory cells.

Abstract: In an embodiment, a system includes a plurality of memory components that each include a plurality of management groups. Each management group includes a plurality of sub-groups. The system also includes a processing device that is operatively coupled with the plurality of memory components to perform wear-leveling operations that include maintaining a sub-group-level delta write count (DWC) for each of the sub-groups of each of the management groups of a memory component in the plurality of memory components. The wear-leveling operations also include determining, in connection with a write operation to a first sub-group of a first management group of the memory component, that a sub-group-level DWC for the first sub-group equals a management-group-move threshold, and responsively triggering a management-group-move operation from the first management group to a second management group of the memory component.

Abstract: Methods, systems, and devices for memory can include techniques for identifying first quantities of write counts for a first plurality of super management units (SMUs) in a mapped region of a memory sub-system, identifying, by a hardware component of the memory sub-system, a first SMU of the first plurality that includes a fewest quantity of write counts of the first quantity of write counts, and performing a wear-leveling operation based at least in part on a first quantity of write counts of the first SMU of the first plurality in the mapped region being less than a second quantity of writes counts of a second SMU of a second plurality of SMUs in an unmapped region of the memory sub-system.

Abstract: A request to program a set of host data items to management units (MUs) of a fault tolerant stripe associated with a memory sub-system is received. A set of memory access operations to be executed at the MUs of the fault tolerant stripe in accordance with the received request is determined. The set of memory access operations include one or more read operations to read data from the MUs of the fault tolerant stripe. The set of memory access operations also include one or more write operations to write the set of host data items and redundancy metadata associated with the set of host data items to MUs of the fault tolerant stripe. A first series of commands corresponding to the one or more read operations of the set of memory access operations is executed. The redundancy metadata associated with the set of host data items is generated based on the data read from the MUs of the fault tolerant stripe during execution of the first series of commands and the set of host data items.

Abstract: A system includes a memory device, and a processing device, operatively coupled with the memory device, to perform operations including receiving a media access operation access command to perform a media access operation with respect to a memory location residing on the memory device, determining whether there exists another memory location access at the memory location, in response to determining that another memory location access exists at the memory location, determining whether the media access operation command is a read command, and in response to determining that the media access operation is a read command, servicing the media access operation command from a media buffer. The media buffer maintains data associated with the completed write operation.

Abstract: A request to program a set of host data items to management units (MUs) of a fault tolerant stripe associated with a memory sub-system is received. A set of memory access operations to be executed at the MUs of the fault tolerant stripe in accordance with the received request is determined. The set of memory access operations include one or more read operations to read data from the MUs of the fault tolerant stripe. The set of memory access operations also include one or more write operations to write the set of host data items and redundancy metadata associated with the set of host data items to MUs of the fault tolerant stripe. A first series of commands corresponding to the one or more read operations of the set of memory access operations is executed. The redundancy metadata associated with the set of host data items is generated based on the data read from the MUs of the fault tolerant stripe during execution of the first series of commands and the set of host data items.

Abstract: Responsive to receiving a table flush command, a first portion of an address mapping table is identified. A first flush operation with respect to a first portion of the address mapping table is performed. Responsive to receiving at least one memory access command, flush operations for a subsequent portion of the address mapping table is suspended. At least one memory access operation specified by the at least one memory access command is performed. A second flush operation with respect to the subsequent portion of the address mapping table is performed.

Abstract: In an embodiment, a system includes a plurality of memory components and a processing device that is operatively coupled with the plurality of memory components. The processing device includes a host interface, an access management component, a media management component (MMC), and an MMC-restart manager that is configured to perform operations including detecting a triggering event for restarting the MMC, and responsively performing MMC-restart operations that include suspending operation of the access management component; determining whether the MMC is operating, and if so then suspending operation of the MMC; resetting the MMC; resuming operation of the MMC; and resuming operation of the access management component.

Abstract: A system includes a processing device, operatively coupled with a memory device, to perform operations including receiving a media access operation command designating a first memory location, and determining whether a first media access operation command designating the first memory location and a second media access operation designating a second memory location are synchronized, after determining that the first and second media access operation commands are not synchronized, determining that the media access operation command is an error flow recovery (ERF) read command, in response to determining that the media access operation command is an ERF read command, determining whether a head command of the first queue is blocked from execution, and in response to determining that the head command is unblocked from execution, servicing the ERF read command from a media buffer maintaining previously written ERF data.

Abstract: Systems and methods are disclosed including a memory device and a processing device, operatively coupled with the memory device, to perform operations comprising: receiving a write data request to store write data to the memory device; determining a physical block address associated with the write data request; performing a bitwise operation on each bit of the physical block address to generate a seed value; generating an output sequence based on the seed value; performing another bitwise operation on the output sequence and the write data to generate a randomized sequence; and storing, on the memory device, the randomized sequence.

Abstract: System and methods are disclosed including a plurality of memory devices and a processing device, operatively coupled with the plurality of memory devices, to perform operations comprising: receiving, from a host system, encrypted write data appended with error-checking data; determining whether the encrypted write data contains an error based on the error-checking data; and responsive to determining that the encrypted write data contains an error, notifying the host system that the encrypted write data contains an error.

Abstract: A logical-to-physical (L2P) data structure and a physical-to-logical (P2L) data structure are maintained. The L2P data structure comprises table entries that map a logical address to a physical address. The P2L data structure comprises data entries that map a physical address to a logical address. The P2L data entries also comprise a data move status, a base address, and a boundary indicator. A move operation is detected, wherein the move operation indicates that data referenced by a logical address is to be moved from a source physical address to a destination physical address. Responsive to detecting the move operation, the data move status associated with the source physical address in the P2L data structure is updated.