Abstract: A page-table size is reduced. A management device manages a data group by dividing the data group into pages. The management device includes a page-processing unit and a data-log-management unit. When update processing is first executed on an update target page in the current-generation, the page-processing unit secures a free space and updates the update target page on the secured free space. The page-processing unit adds, to a data log file of the current-generation, a CPUNDO log indicating a correspondence between a logical address and a physical address in the update target page. The data-log-management unit writes data at starting of the current-generation to a data storage device for the immediately previous operation page. The data-log-management unit adds, to the data log file of the current-generation, a CPREDO log indicating a correspondence between the logical address and the physical address in the immediately previous operation page.

Abstract: A signal transmission apparatus is provided in the present disclosure, including: a substrate, and a BLUETOOTH antenna and WI-FI antennas which are provided on a same side edge of the substrate. At least two branches of the WI-FI antennas are provided, and the BLUETOOTH antenna and the WI-FI antennas are provided at intervals. According to the present disclosure, the BLUETOOTH antenna and the WI-FI antennas are provided on the same side edge of the substrate, and the BLUETOOTH antenna and the WI-FI antennas are provided at intervals, so that all the antennas of the signal transmission apparatus are provided at an edge of a terminal board, thereby facilitating signal transmission and solving a problem in the prior art that the BLUETOOTH antenna and the WI-FI antennas are respectively provided on two side edges of the substrate, affecting data transmission.

Abstract: Various illustrative aspects are directed to a data storage device, method, and one or more processing devices that are configured to: maintain respective measures of write commands associated with respective ones of shingled magnetic recording (SMR) zones defined in a data storage device, wherein data associated with the write commands is stored in a write cache associated with the data storage device; select one of the SMR zones based on the respective measures; perform a pre-heat operation of a laser diode included in a head associated with the selected one of the SMR zones; and perform a continuous write operation in the selected one of the SMR zones following the pre-heat operation, wherein the continuous write operation writes at least a portion of data stored in the write cache associated with the selected one of the SMR zones.

Abstract: A watching system by which a game video is distributed to display devices of a plurality of watching users has: a computer; the computer accepting viewer operations by the plurality of watching users; the computer evaluating a mutual relationship of input of the viewer operation by each of the plurality of watching users; and the computer controlling an operation effect corresponding to the viewer operation so as to change based on evaluation result of the mutual relationship.

Abstract: Embodiments of this application disclose an arc detection method for performing protection in an energy storage system, and a related apparatus, to improve accuracy of arc detection in an energy storage system, promptly take an arc extinguishing measure, and reduce a probability of causing a safety hazard. The method in the embodiments of this application includes: A control apparatus obtains an electrical signal at an electrical connection point in an energy storage system. The control apparatus determines a frequency domain amplitude based on a frequency domain characteristic of the electrical signal. When the frequency domain amplitude is greater than a preset amplitude, the control apparatus controls the energy storage system to perform an arc extinguishing and protection operation on the electrical connection point.

Abstract: The present disclosure provides methods, apparatuses and devices for coding and decoding.

Abstract: A distribution system that distributes distribution data including a moving image to user terminals includes a computer that receives a posting operation of a comment on the moving image from each of the user terminals, stores posting history information including information indicating a posting tendency of the comment so as to be distinguishable for each of the user terminals, performs grouping such that each of the user terminals belongs to one or more groups based on the posting history information, extracts the comment posted from the user terminal for each of the groups to which the user terminal belongs as a group comment, and generates the distribution data so as to display a group comment area in which the group comment is displayed.

Abstract: The present disclosure provides a machine learning-based method for measuring bending stiffness of a fabric, comprising: obtaining an image of a fabric to be tested placed on a three-dimensional geometric object; and determining the bending stiffness of the fabric to be tested by inputting the image of the fabric to be tested into a trained deep neural network.

Abstract: A storage device may be coupled to a host device and the storage device may support a host performance booster (HPB) feature. A controller on the storage device may execute a background relocation operation. During the background relocation operation, the controller may identify a block to relocate data from. The controller may also determine that a relocation system threshold has not been reached. The controller may execute a source selection algorithm configured to minimize HPB entry inactivation resulting from data relocation. The source selection algorithm may include a criterion to enable the controller to select a source block for relocation.

Abstract: A method and a system for automatic machine learning-based prediction of new energy power with cloud-edge collaboration are disclosed. The method includes: obtaining, in response to a power prediction demand for a target new energy station, future numerical weather prediction data of the target new energy station in a future period and historical output power of a historical period corresponding to the future period; selecting, based on missing of the future numerical weather prediction data and a data amount of the historical output power, a target power prediction model corresponding to the target new energy station; and adjusting the target power prediction model according to the target working mode, and predicting, by the adjusted target power prediction model, a target output power of the target new energy station in the future period, based on the future numerical weather prediction data and the historical output power.

Abstract: A method includes detecting a voltage signal of a three-level power converter, the voltage signal indicative of a capacitor voltage balancing in the three-level power converter, and dynamically adjusting an operating variable to adjust the voltage signal until the capacitor voltage balancing in the three-level power converter satisfies a criteria.

Abstract: Parallel computation methods and systems for multiplying symmetric matrices with vectors are provided. The method may include acquiring a symmetric matrix and a vector; determining a count of a plurality of threads; dividing the symmetric matrix into a symmetric axis region, an upper triangular region, and a lower triangular region; obtaining symmetric axis data by determining a product of the symmetric axis region and the vector; dividing the upper triangular region or the lower triangular region into one or more subregions; for each of the one or more subregions, determining one or more candidate axes parallel to the symmetric axis, and for each of the one or more candidate axes, obtaining two sets of data or four sets of data by performing two multiplication operations on the candidate axis; and obtaining a result of multiplying the symmetric matrix with the vector.

Abstract: A control method of a three-phase multi-level inverter includes: determining a modulation ratio based on output of the three-phase multi-level inverter, where the modulation ratio indicates a ratio of an amplitude value of a sinusoidal modulation wave in pulse width modulation to an amplitude value of a carrier; generating, based on the modulation ratio and a modulation ratio threshold, a common-mode voltage regulation signal for regulating a common-mode voltage in phase voltages of the three-phase multi-level inverter; adding the common-mode voltage regulation signal and a differential-mode voltage regulation signal for regulating a differential-mode voltage in the phase voltages of the three-phase multi-level inverter to obtain a composite regulation signal, where the composite regulation signal is presented as a modulation wave for discontinuous pulse width modulation (DPWM); and generating, based on the composite regulation signal, drive signals for controlling switches of phases of the three-phase multi-

Abstract: A smart product display system has a base on which a product can be placed. A product camera mounted to the base is used to image a field of view over the base. Images from the product camera are analyzed to identify products that are placed on the base and to detect when a customer has interacted with a product, such as by lifting it up. When a product interaction is detected, information about the product is presented on a display. The display can be integrated in a riser extending upwardly from the base. A customer camera can be used to capture images of a person in the vicinity of the system. Images from the customer camera can be analyzed to identify an attribute of an imaged person and an output, such as a content display or an alert, generated responsive to the attribute.

Abstract: An optical element driving unit includes a stationary body, a carrier, a supporting mechanism and an electromagnetic driving assembly. The supporting mechanism is connected to the carrier and the stationary body and provides the carrier with a degree of freedom of movement relative to the stationary body. The carrier can be driven to move by the electromagnetic driving assembly. The electromagnetic driving assembly includes a driving coil, a driving magnet and a ferromagnetic element. The driving coil is disposed on the carrier. The driving magnet is disposed on the stationary body. The ferromagnetic element is one-piece formed and embedded in the carrier, and the ferromagnetic element includes a magnetic field guiding part and an electrical connection part. The magnetic field guiding part faces the driving coil and/or the driving magnet. The electrical connection part is exposed on a surface of the carrier and electrically connected to the driving coil.

Abstract: The present disclosure relates to systems and methods for signal processing. The methods may include: directing a transmitter to transmit a beam of light to the subject; receiving a first signal collected by a first receiver according to a first receiving parameter of the first receiver, the first signal being reflected by the subject in response to the beam of light and at least comprising a photoplethysmograph (PPG) signal relating to the subject and a moving/vibrating signal relating to the subject; receiving a second signal collected by a second receiver according to a second receiving parameter of the second receiver, the second signal being reflected by the subject in response to the beam of light and at least comprising the moving/vibrating signal; identifying the PPG signal of the subject in the first signal by removing the moving/vibrating signal from the first signal based on the second signal.

Abstract: [PROBLEM] To provide an environment in which multiple factories can individually manage information about production and manufacturing and can smoothly share or link the information. [SOLVING MEANS] An information management system according to an embodiment is based on the assumption that each of cooperating factories holds a manufacturing plan based on a production management plan, a goods arrival plan about procurement from the other cooperating factories, and achievements from the manufacturing plan and the goods arrival plan, and includes an existing manufacturing management system which independently manages plans and achievements of manufacturing in the factory.

Abstract: A method and an apparatus for adjusting a viewing angle of a display screen, and a storage medium and an electronic device are disclosed. The method includes: determining a target user, and positioning a first position of the target user, according to the first position, determining a line-of-sight angle of the target user for each display area on a display screen, determining an adjustment parameter of each line-of-sight angle, and according to the adjustment parameter, adjusting, in the display area corresponding to each line-of-sight angle, image pixels of an image to be displayed.

Abstract: A storage device may ensure consistent performance when executing a read command provided by a host device. The storage device executes a read instruction received from the host device and executes a background operation to manage resources on a memory device and/or perform thermal throttling on the storage device. The storage device executes a formula including an interleave ratio to interleave host read operations with the background operation based on an operation time. The storage device also uses a read temperature threshold, a preset slowdown percentage, and/or a read speed to optimize host read operations during thermal throttling and thereby limit performance degradation during read operations.

Abstract: Electronic display device (7), which comprises a display module (8) for the visualisation of price and/or product information, which can be received in the course of radio communication with an access point (3A-3D), and which comprises an acceleration sensor (10), which is designed to detect an acceleration of the display device (7), and to provide a detection signal (ED) representing the detected acceleration, and which comprises a communication module (9), which is designed for radio communication with a previously established first access point (3A), characterised in that, the communication module (9) is designed to identify the occurrence of at least two mutually distinguishable patterns over the time profile of the detection signal (ED) provided, and, depending on the pattern identified, either to verify the communication availability of the previously established first access point (3A) for further radio communication, or to determine a second access point (3B) for further radio communication.