Abstract: A cleaning equipment includes a first take-up reel, a first supply reel, a frame, a first cleaning film, and a transmission assembly. The frame includes an inner space accommodating the first take-up reel and the first supply reel side by side and an outer surface having at least one gap communicating with the inner space. The first cleaning film has a supply part on the first supply reel, a take-up part on the first take-up reel, and a middle part at least partially covering the outer surface of the frame. Two ends of the middle part enter the inner space through the at least one gap and are connected to the supply part and the take-up part, respectively. The transmission assembly is coupled to the first supply reel and the first take-up reel and drives at least one of the first supply reel and the first take-up reel to rotate.

Abstract: Devices, methods, and media are described for unmap support in coarse mapped storage. In one embodiment a controller of a memory sub-system manages a set of metadata for super management units (SMU) of the memory sub-system, wherein each SMU of the memory sub-system comprises a plurality of data management units (MU), and wherein each MU comprises a plurality of addressable memory elements as part of a coarse memory storage of the memory sub-system. The controller processes a trim command for a first SMU of the plurality of SMUs, and adjusts a trim bit associated with metadata for the first SMU. This trim bit can then be used to manage read and write operations as the trimmed unit waits to be written with an unmap data pattern. Similarly, a trim bit in MU metadata can be used manage related operations to prevent memory access errors.

Abstract: An example method may include performing a first wear leveling operation on a group of data blocks based on a write counter associated with the group of data blocks, wherein the first wear leveling operation comprises including the group of data blocks in a plurality of groups of mapped data blocks, responsive to including the group of data blocks in the plurality of groups of mapped data blocks, performing a second wear leveling operation on the group of data blocks, wherein performing the second wear leveling operation comprises determining a base address of the group of data blocks, the base address indicating a location at which the group of data blocks begins, and accessing a data block in the group of data blocks based on the base address of the group of data blocks and a logical address associated with the data block.

Abstract: A display device includes a screen, a screen stand and a fixing module. The screen stand is pivotally connected to the screen. The fixing module is connected to the screen stand and configured to clamp a first surface and a second surface of a board and includes a connecting element, a first abutting element and a second abutting element. The first abutting element is fixed to the connecting element and configured to abut against the first surface of the board. The second abutting element is pivotally connected to the connecting element and includes an abutting end configured to abut against the second surface of the board.

Abstract: An instruction can be received at a sequencer from a controller. The sequencer can be in a package including the sequencer and one or more memory components. The sequencer is operatively coupled to a controller that is separate from the package. A processing device of the sequencer can perform an operation based on the instruction on at least one of the one or more memory components in the package.

Abstract: A host operation to be performed can be received. Sub-operations that are associated with the received host operation can be determined. A memory component of multiple memory components can be identified for each sub-operation. Furthermore, each sub-operation can be transmitted to a media sequencer component that is associated with a respective memory component of the memory components.

Abstract: The present disclosure provides high-purity semi-insulating single-crystal silicon carbide wafer and crystal which include one polytype single crystal. The semi-insulating single-crystal silicon carbide wafer has silicon vacancy inside, wherein the silicon-vacancy concentration is greater than 5E11 cm{circumflex over (?)}-3.

Abstract: The present application provides a group of human immortalized B lymphocyte cell lines and use thereof, and specifically provides a combination of four closely related immortalized lymphocyte cell lines. The combination can be used as a reference substances for measuring the performance of a detection platform. When the four closely related immortalized lymphocyte cell lines are used as reference substances for epigenome, transcriptome, proteome, and metabolome, an intrinsic magnitude difference gradient can be formed to evaluate the sensitivity of histological detection.

Abstract: A method includes receiving a request for host data, receiving a codeword that is associated with the host data, performing a decoding operation for a first portion of the codeword to generate a segment of decoded data, determining whether the segment of the decoded data satisfies the request for the host data, and in response to determining that the segment of the decoded data satisfies the request for the host data, terminating the decoding operation for remaining portions of the codeword.

Abstract: A processing device, operatively coupled with a memory device, performs operations including receiving a write request from a host system at a first time, the write request identifying first data to be stored in a segment of the memory device, determining whether a pre-read voltage level of the write request satisfies a pre-read voltage level criterion pertaining to a write-to-write time interval for the segment, wherein the write-to-write time interval is defined by the first time and a second time corresponding to a last time at which the segment was written, and responsive to determining that the pre-read voltage level satisfies the pre-read voltage level criterion pertaining to the write-to-write time interval, performing a pre-read operation on the segment using the pre-read voltage level to determine second data currently stored in the segment.

Abstract: A memory sub-system periodically performs a first wear leveling operation using a direct mapping function on a data management unit of a memory component in the memory sub-system at a first frequency. The memory sub-system further periodically performs a second wear leveling operation using indirect mapping on a group of data management units of the memory component at a second frequency, wherein the second wear leveling operation is performed less frequently than the first wear leveling operation.

Abstract: Methods, systems, and devices for cryptographic key management are described. A memory device can issue, by a firmware component, a command to generate a first cryptographic key for encrypting or decrypting user data stored on a memory device. The memory device can generate, by a hardware component, the first cryptographic key based on the command. The memory device can encrypt, by the hardware component, the first cryptographic key using a second cryptographic key and an initialization vector. The memory device can store the encrypted first cryptographic key in a nonvolatile memory device separate from the hardware component.

Abstract: A method of preserving the contiguity of large pages of a workload during migration of the workload from a source host to a destination host includes the steps of: detecting at the destination host, receipt of a small page of zeros from the source host, wherein, at the source host, the small page is part of one of the large pages of the workload; and upon detecting the receipt of the small page of zeros, storing, at the destination host, all zeros in a small page that is part of one of the large pages of the workload.

Abstract: Methods, systems, and devices for one or more clock domain crossing queues are described. A queue can receive, from a first clock domain, a first command to store data in the queue. The queue can store the data at a first location indicated by a first pointer. The queue can receive, from the first clock domain, a second command to cause the second clock domain to retrieve the data from the queue. The queue can generate, based on receiving the second command, a third command synchronized with a clock of the second clock domain and to cause the second clock domain to retrieve the data. The queue can retrieve the data from the first location in the queue indicated by a second pointer associated with retrieving data based at least in part on generating the third command. The queue can transmit, to the second clock domain, the data.

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: Techniques for storage management involve: receiving, at a storage server, an access request for target data from a client, wherein the access request occurs in a session between the storage server and the client; determining, based on attribute information of the client, security information of the session, wherein the security information indicates whether the session is subjected to antivirus protection; and executing, based on the security information, an access operation specified by the access request on the target data. Therefore, the performance of the storage server can be improved while the security of the storage server is ensured.

Abstract: A method of populating page tables of an executing workload during migration of the executing workload from a source host to a destination host includes the steps of: before resuming the workload at the destination host, populating the page tables of the workload at the destination host, wherein the populating comprises inserting mappings from virtual addresses of the workload to physical addresses of system memory of the destination host; and upon completion of populating the page tables, resuming the workload at the destination host.

Abstract: One or more write operations are performed on a memory component. First data stored at the memory component is read. A determination is made as to whether an error rate associated with the first data stored at the memory component exceeds an error rate threshold. If the error rate exceeds the error rate threshold, a threshold value is adjusted. A determination is made as to whether a number of the plurality of write operations performed on the memory component since performance of a refresh operation on the memory component exceeds the threshold value. In response to determining that the number of write operations performed on the memory component exceeds the threshold value, a memory cell of the memory component is identified based on the plurality of write operations. Second data stored at memory cells of the memory component that are proximate to the identified memory cell is refreshed.

Abstract: A processing device can determine a configuration parameter based on a memory type of a memory component that is managed by a memory system controller. The processing device can receive data from a host system. The processing device can generate, by performing a memory operation using the configuration parameter, an instruction based on the data. The processing device can identify a sequencer of a plurality of sequencers that are collocated, within a single package external to the memory system controller, wherein each sequencer of the plurality of sequencers interfaces with a respective memory component. The processing device can send the instruction to the sequencer.

Abstract: The present invention provides a system including a transmitter and a receiver is disclosed. The transmitter includes a first main data path and a first main strobe path, wherein the first main data path is configured to generate a plurality of data signals, the first main strobe path is configured to generate a first strobe signal, and delay amount of the first main data path and delay amount of the first main strobe path are unbalanced. The receiver includes a second main data path and a second main strobe path, wherein the second main strobe path is configured to receive the first strobe signal to generate a plurality of second strobe signals, and the second main data path is configured to receive the plurality of data signals, and uses the plurality of second strobe signals to sample the plurality of data signals to generate a plurality of sampled signals, respectively.