100results about "Memory loss protection" patented technology

A storage device includes a substrate, at least one data storage element, a case, and at least one sensing pin. The substrate includes at least one security pad. The data storage element is mounted on the substrate. The case surrounds the substrate and the data storage element, and includes at least one contact structure for an electrical connection with the security pad. The sensing pin receives an electrical signal. A level of the electrical signal varies by detecting a change in a resistance according to whether the security pad is electrically connected to the contact structure. When at least a part of the case is removed, a level change of the electrical signal is detected, and a secure erase process for data stored in the data storage element is performed.

The invention provides a power failure protection method and device, electronic equipment and a storage medium. Relates to the technical field of computers. The method comprises the following steps: acquiring target data in a cache device included in a system; monitoring the working state of the system; responding to the power failure state of the system, and transmitting the target data to a persistent memory area of at least one hard disk drive in the system; the persistent memory area is started when the system is in a power-down state; the persistent memory area can perform data storage when the system is in a power-down state. According to the invention, the overall deployment cost of the system can be reduced, and the operation efficiency of power failure protection is improved.

The invention discloses an MCU (Microprogrammed Control Unit) device with a power-down data protection function, which comprises an ADC (Analog to Digital Converter) module for acquiring reference voltage values of modules in an MCU, a variable reference voltage module for outputting reference output voltages with variable values, a voltage comparison module for comparing the reference voltage values with the corresponding reference voltage values, and a power-down data protection module for outputting power-down data. When the reference voltage value is lower than the variable reference voltage, a power-down signal is generated, and the data transfer module receives the power-down signal and transfers data in one or more addresses in the volatile memory into the nonvolatile memory; the data moving module automatically stores an initial address of a set area in the volatile memory and to-be-backed-up data with a fixed length to a specified address in the nonvolatile memory through a control bus; the data migration module is preset in the chip design stage, and after the power failure signal is received, the data in the volatile memory can be automatically migrated to the nonvolatile memory through the internal bus control of the chip without a processor.

The present disclosure relates to a computing high speed link (CXL) device configured to protect data by using data encryption and a method of operation thereof. An example CXL device includes a volatile memory connected to a plurality of channels; and a CXL controller. The CXL controller includes: a CXL subsystem controller configured to search a key index table for a first key index based on first host data and a first device physical address; and a memory subsystem controller configured to search for at least one first key in a key table based on the first key index, and generate first encrypted data based on the first data, the first device physical address, the at least one first key, and an encryption algorithm.

Aspects of the innovations herein are consistent with a storage system for storing variable sized objects. According to certain implementations, the storage system may be a transaction-based system that uses variable sized objects to store data, and / or may be implemented using data stores, such as arrays disks arranged in ranks. In some exemplary implementations, each rank may include multiple stripes, each stripe may be read and written as a convenient unit for maximum performance, and / or a rank manager may be provided to dynamically configure the ranks. In certain implementations, the storage system may include a stripe space table that contains entries describing the amount of space used in each stripe. Further, an object map may provide entries for each object in the storage system describing the location, the length and / or version of the object.

Denial of service attack mitigation based on compute node failures is described herein. In an example, a system can include a first point of presence (POP) that is located in a first region and a server that is located in a second region. The system can also include a first compute node that is located in the first region and communicatively coupled with the first POP or that is located in the second region and communicatively coupled with the server and has a smaller capacity to handle requests than each of the POP and the server. The first compute node is configured to receive a request of the POP indicating a network address of the server, determine data to send the request along a network path to the server, and send the request along the network path based on the data.

The present disclosure describes systems and methods for generating, implementing, and verifying a security program for organizations. In one aspect, a method for generating, implementing, and verifying a security program for an organization is disclosed. The method includes receiving inputs providing information about the organization, generating the security program by processing the inputs describing the information about the organization, the security program including assessment objectives for the security program, and providing the information about the organization and the security program as model inputs to a security management model to generate output including implementation procedures defining steps for implementing the security program and verification procedures defining steps for verifying the assessment objectives of the security program.

This invention relates to the field of data storage technology, and discloses a critical data processing system, method, device, medium, and program product. The critical data processing system includes: a power-down monitoring module, a power-down processing module, a critical data extraction module, a hardware acceleration module, volatile memory, and a storage disk. Based on different monitoring results from the power-down monitoring module and the state of the critical data recording switch, the critical data extraction module and the power-down data processing module package the corresponding data to be recorded or protected and move it to a specific address in the volatile memory. Then, the hardware acceleration module reads the recorded or protected data from the corresponding address in the volatile memory. This critical data processing system has a high transmission rate and sufficient storage space, enabling it to perform both power-down critical data protection and critical data recording functions. During operation, it can automatically switch from critical data recording to power-down critical data protection mode according to the usage scenario.

The invention discloses a power-down protection method and device for a solid state disk and a storage medium, and relates to the technical field of data processing.The method comprises the steps that when it is detected that the solid state disk is in a pre-power-down state, mirror image data of a cache emergency data area is obtained; based on a preset interface, writing the mirror image data into a pre-distribution protection block of a flash memory; and according to a preset minimum write-in protocol, deleting redundant fields of the data in the cache common data area, and writing the obtained necessary data into the pre-distribution protection area block. The technical problems that the data is easy to lose and the writing efficiency is low in the power-down scene of the solid state disk are solved.

A semiconductor device includes a master circuit which outputs a first write request signal for requesting to write data, a bus which receives the data and the first write request signal, a bus control unit which is arranged on the bus, generates an error detection code for the data and generates a second write request signal which includes second address information corresponding to first address information included in the first write request signal and memory controllers which each write the data into a storage area of an address designated by the first write request signal and writes the error detection code into a storage area of an address designated by the second write request signal in the storage areas of memories.

The invention belongs to the field of aviation airborne computers, and provides a multi-stage detection power-down data protection system and method based on an MCU (Microprogrammed Control Unit), which are used for protecting key health data generated by a main module when a main power supply of the system is powered down. The system comprises a to-be-tested power supply module, an MCU energy storage power supply module, a data communication module and an MCU control module. The MCU integrates an ADC, an interrupt GPIO, a detector PVD, an SRAM and a Flash; the to-be-tested power supply module is respectively connected with the ADC and the GPIO, and monitors a main power supply for supplying power to the main module; the MCU energy storage power supply module provides backup power supply for the MCU when the main power supply is powered down; and the main module writes key data into the SRAM through the data communication module, and the MCU transfers the key data into the Flash after detecting a power failure event. The method does not need an NVRAM (Non-Volatile Random Access Memory) or a special monitoring chip, is low in cost and high in reliability, and is suitable for high-reliability embedded systems such as aviation and airborne systems.

The present application belongs to the technical field of data recording and playback. The present application provides a method, system, storage medium and electronic device for recording and playback of multi-source flight data of unmanned aerial vehicles. The disclosed embodiments can synchronously record and playback massive amounts of unmanned aerial vehicle flight data, solving the problem of system data loss. In addition, the ability to quickly retrieve files and synchronously playback based on target information or time points reduces the risk of data loss during recording, improves the accuracy of retrieval locations, and solves the problem of synchronous fast playback of telemetry data and unmanned aerial vehicle reconnaissance intelligence data. It not only shortens the search time and improves data playback efficiency; it also provides technical support for fault analysis and analysis reproduction of unmanned aerial vehicle systems. This method can be applied to various other types or models of unmanned aircraft systems and has strong generalizability.

A priority determination unit (513) determines the priority of target operational data based on an event. Target operational data is operational data that relates to the event. A write unit (514) stores the target operational data in a storage unit. If the capacity to record the target operational data is insufficient, the write unit (514) overwrites relatively low-priority operational data stored in the storage unit with the target operational data. A transfer unit (515) transfers operational data with a relatively high priority stored in the storage unit to a management server (900), giving it priority over relatively low-priority operational data.

In some examples, a system groups a multitude of blocks of coded data into first segments, where each first segment comprises several blocks from the multitude of blocks, and the coded data is based on the application of a deletion correction coding to input data. The system stores the first segments in corresponding error domains of a first set of error domains in a first deletion correction configuration, where the first deletion correction configuration allows error recovery in response to lost coded data in a specified number of error domains. The system transitions from the first deletion correction configuration to a second deletion correction configuration by reorganizing the first segments into second segments, where each second segment comprises a different number of blocks of coded data than a first segment.

The present disclosure describes systems and methods for generating, implementing, and verifying a security program for organizations. In one aspect, a method for generating, implementing, and verifying a security program for an organization is disclosed. The method includes receiving inputs providing information about the organization, generating the security program by processing the inputs describing the information about the organization, the security program including assessment objectives for the security program, and providing the information about the organization and the security program as model inputs to a security management model to generate output including implementation procedures defining steps for implementing the security program and verification procedures defining steps for verifying the assessment objectives of the security program.

One embodiment of the method involves creating a first storage volume for an application launched at a first data center, communicating with a second data center to create a second storage volume for the application at the second data center to replicate the first storage volume, and sending information identifying the application to the second data center. The second data center creates the second storage volume and establishes a mapping between the application and the second storage volume using the information identifying the application, wherein the second data center uses the mapping to identify the second storage volume of the application when the application migrates from the first data center to the second data center.

An operating method of a storage device, includes: receiving decoded data from a codec; determining whether the decoded data includes a region of interest (ROI); based on determining the ROI is included in the decoded data, determining whether the decoded data includes a first background region, other than the ROI, identical to a second background region of an adjacent frame; based on determining the first background region is identical to the second background region, determining a similarity for the ROI between the decoded data and the adjacent frame; determining whether the similarity is lower than a reference value; and based on determining the similarity is lower than the reference value, generating detection information indicating that the decoded data is faked.

Method for reading a flash memory device (2), comprising: Storing (103) configuration files (21) of a plurality of neural classification network (CNN) models for a reliability state, configuration files (22) of a plurality of neural regression network (RNN) inference models, and a plurality of sets of reliability state tags (23), wherein each set of reliability state tags (23) is associated with one of a plurality of reliability states, and each of the reliability state CNN models is associated with a range of programming and erasing (P / E) cycles; Monitoring (104) the operation of the flash storage device (2) to identify a current number of P / E cycles of the flash storage device (2); Select (105) one of the reliability state CNN models that are assigned a range of P / E cycles corresponding to the current number of P / E cycles; Performing (106) an operation of a neural network of the selected reliability state CNN model to identify a predicted reliability state; Identifying (107) the set of reliability state tags (23) that are associated with the predicted reliability state; Selecting (108) one of the many RNN inference models that corresponds to the predicted reliability state; Performing (109) an operation of a neural network of the selected RNN inference model, which is used as input of the identified reliability state tags (23) to generate output values ​​that specify the shape of a threshold voltage shift read error curve (TVS-RE curve); Identifying (110) a threshold voltage displacement offset value (TVSO value) near a minimum value of the TVS-RE curve; Repeating (111) the selection of one of the RNN models, performing the operation of a neural network of the selected RNN inference model, and identifying TVSO values ​​for all threshold voltage regions required to read the flash memory device (2); and Performing (112) a read operation of the flash memory device (2) using a threshold voltage shift read operation at the identified TVSO values.

The invention discloses a solid state disk read failure processing method and a solid state disk. The method comprises the following steps: when a read command is received and a corresponding logic address is recorded in a table which cannot be corrected, if a corresponding record is derived from previous read failure, re-reading data in a corresponding physical address; when re-reading succeeds, moving the corresponding record out of the uncorrectable table and triggering garbage collection to move effective data in the corresponding physical block to a new physical block; when re-reading fails, accumulating read failure counts in the corresponding records; and when the read failure count reaches a threshold value, setting the physical address to be invalid, and subtracting the count value of the corresponding logic address from the count of the valid fragment of the physical block where the physical address is located, so that the count of the valid fragment of the physical block where the physical address is located can return to zero and is allowed to be erased. According to the method, the problems that data are permanently discarded by the UNC due to occasional factors, and the corresponding physical block is locked for a long time due to the fact that the VFC of the physical block cannot be reset due to the physical page of the UNC can be solved.

Various embodiments for predicting which software vulnerabilities will be exploited by malicious hackers and hence prioritized by patching are disclosed.

Devices and methods for backing up digital data on storage devices which are automatically selected on an individual basis for digital connection, data exchange and data storage on a scheduled basis and each kept digitally disconnected when not selected and connected for backup data transfer and storage. Devices and methods which backup data on one of a number of an offline storage devices by connecting a selected storage device, backup data onto an offline storage device and then disconnecting the offline storage device, in order to isolate the backed-up data and optionally allow a different storage device to be used for the next back up event.

The application provides a self-adaptive solid state disk power failure protection method and device. The method comprises the following steps: after triggering power failure, firstly, the physical address of the data to be persisted in the volatile cache is directly determined by calculation based on a pre-stored linear mapping relationship, so as to eliminate the energy consumption and delay of traditional traversal search; secondly, the real-time available energy of the energy storage array is obtained and compared with a preset energy demand threshold; the energy demand threshold is obtained based on load prediction; if the energy is insufficient, part of the data subset is abandoned to be written according to the dynamically generated data priority order; finally, the selected data subset is written into the non-volatile storage medium according to the calculated physical address. The application significantly improves the power failure protection success rate and system energy efficiency.

The invention provides a data storage method and device, a vehicle and a storage medium, the method is applied to the field of data storage, firstly, two channels isolated from each other are established, and data classification and distribution are achieved from the source; and secondly, the key data of the first recording channel is subjected to real-time disk falling and is directly written into the nonvolatile storage medium, so that the loss risk of the key data is avoided. And meanwhile, the data of the second recording channel is buffered and temporarily stored and is written into the volatile storage medium, so that the input / output frequency and load of the nonvolatile storage medium are reduced. And finally, the data in the associated buffer area is subjected to batch disk dropping only under specific conditions, so that storage resources are distributed according to needs, and the overall performance and storage efficiency of the system are improved while the reliability of key data is ensured.

The present invention relates to provide limited granting module for computing chips A Granting module is provided as a main module for limiting the computational operations of the computing chips. The Granting module through enable signal grants the operations of an actual design in a computing device, such as CPU, GPU, Artificial Intelligence based Neural Network models, any primitive logic gates such as AND, OR, NOT, XOR, XNOR, NAND, NOR and the like. An encrypted enable logic may be provided for non-System on Chip. A replaceable and / or reconfigurable measuring unit is provided to measure one or more parameters, wherein the measuring unit is adapted to reconfigure for a System on Chip if the Limited grantor is meant for repetitive operations. Different kind of the secured mode settings are implemented which triggers to reset in case of re-configurable measuring unit. Limited grantor Design logic is operative when measuring unit is not reached to measuring limit. The measuring unit provides enable logic triggering that further provide the actual design to operate, whereas if the measuring unit reaches to a measuring limit, the measuring unit triggers enable logic which makes the actual design non operative.

A data compression system comprising computer memory to store plural compression algorithms and a hardware processor to apply compression algorithm / s to incoming data items, wherein the compression algorithm to be applied to individual data item / s from among the incoming data items is selected, from among the plural compression algorithms, by the hardware processor, depending at least on the individual data item.

A storage controller and a storage array. The storage controller comprises: a central processing unit, a cache, a system hard disk, a first cache storage disk, a second cache storage disk and a battery backup unit, wherein the central processing unit is configured to read and write data in the cache; the first cache storage disk and the second cache storage disk are both connected to the central processing unit; the battery backup unit is configured to supply power to a corresponding component when the storage controller is powered down abnormally; and the central processing unit is further configured to write, when the storage controller is powered down abnormally, data in the cache into the first cache storage disk and the second cache storage disk. Therefore, the persistence of data in the cache is realized, and subsequent data recovery is facilitated, thereby ensuring the reliability of the storage controller.

The invention relates to the technical field of computing devices, in particular to a memory fault isolation method and a computing device.In the starting stage of the computing device, fault identification information corresponding to at least one memory is read, and the fault identification information is used for determining whether an unavailable fault exists in the corresponding memory or not; based on the fault identification information corresponding to the at least one memory, determining a first memory with an unavailable fault; and isolating the first memory. In the embodiment of the invention, the memory fault is pre-checked, the system operation problem is avoided, and the system starting safety and stability are improved.

In some aspects, the techniques described herein relate to systems (130) and methods (200; 300) for determining versions of a software application that are affected by a vulnerability including: receiving an indication of a detected vulnerability in a first version of a software application by a computing device (201); in response to the indication of the detected vulnerability, generating a tree representation of the first version of the software application by the computing device (203); retrieving a plurality of versions of the software application by the computing device (301), wherein each of the plurality of version is different than the first version; for each version of the software application of the plurality of versions of the software application, generating a tree representation of the version of the software application by the computing device (303); and based on the generated trees, identifying at least one version of the plurality of versions of the software application that may include the detected vulnerability by the computing device (307).

According to one embodiment, a write instructing unit instructs a data access unit to write, in a storage area of a data storage unit indicated by a first physical address, write object data, instructs a management information access unit to update address conversion information, and instructs a first access unit to update the first physical address. A compaction unit extracts a physical address of compaction object data, instructs the data access unit to read the compaction object data stored in a storage area of the data storage unit indicated by the physical address, instructs the data access unit to write the compaction object data in a storage area of the data storage unit indicated by a second physical address, instructs the management information access unit to update the address conversion information, and instructs a second access unit to update the second physical address.