Abstract: A hardware mechanism at each dielet of a multi-dielet processing system is aware of engine page-table binds at all the dielets, thereby providing accurate traffic notifications to software (e.g., a unified virtual memory driver) for on-demand page-migration between system memory and GPU memory. The mechanism broadcasts binding information to access counters on each dielet so the access counters are able to correlate engines requesting memory access with bound virtual memory pages and generate corresponding informative notifications. A flexible multi-dielet counter clear capability enables software to clear access counters.

Abstract: A trench metal-oxide-semiconductor field-effect transistor (MOSFET) device comprises an active cell area including a plurality of superjunction trench power MOSFETs formed in an epitaxial layer. Each MOSFET includes source and body regions and a contact trench formed between first and second gate trenches. A region of the epitaxial layer between the gate trenches extends to the top surface of the epitaxial layer. An insulated gate electrode is formed in each gate trench. At least a portion of the contact trench extends from a top surface of the epitaxial layer to a depth that is shallower than the bottom of the body region.

Abstract: A data processing system in embodiments of this application includes a storage layer, a virtual bus, and a service layer. The storage layer includes a plurality of storage devices that are configured to provide storage space. The virtual bus is configured to receive registration of the plurality of storage devices to form a virtual network comprising the plurality of storage devices. The service layer is configured to provide a service for a user based on the virtual network.

Abstract: This application provides a screen drive circuit, a display, and an electronic device. An input terminal of a drive selection circuit in the screen drive circuit inputs a row drive signal, and a control terminal of the drive selection circuit inputs a row address selection signal. The drive selection circuit outputs, based on the row address selection signal, the row drive signal corresponding to a pixel row whose displayed content changes. The row address selection signal is generated, by a display drive chip connected to the display, based on the pixel row whose displayed content changes. It can be learned that, the screen drive circuit can separately select, based on an update frequency of displayed content on the display, some pixel rows in a pixel array for content refreshing, thereby implementing local refreshing based on the displayed content.

Abstract: A display method for a foldable screen and an electronic device can resolve a split-screen problem that when a foldable screen of the electronic device transitions from a folded state to an unfolded state, brightness of the unfolded foldable screen is inconsistent. The method includes, outputting, in response to a transition of the foldable screen from the unfolded state to the folded state, a first pulse signal to a first screen, and outputting a second pulse signal and a third pulse signal that periodically and alternately change to a second screen. The second pulse signal and the third pulse signal that periodically and alternately change are used to control a threshold voltage of a transistor on the second screen to remain within a preset range.

Abstract: This application provides a display method for a foldable screen and an electronic device, relates to the field of display technologies, and can resolve a split-screen problem that when a foldable screen of the electronic device transitions from a folded state to an unfolded state, brightness of the unfolded foldable screen is inconsistent. The method includes: In response to a transition of the foldable screen from the unfolded state to the folded state, the electronic device outputs a first pulse signal to a first screen, and outputs a second pulse signal and a third pulse signal that periodically and alternately change to a second screen. The second pulse signal and the third pulse signal that periodically and alternately change are used to control a threshold voltage of a transistor on the second screen to remain within a preset range.

Abstract: Embodiments of this application are applied to the field of electronic technologies, and provide a method for setting a refresh rate, a display driver chip, and an electronic device. The method includes: generating a divided clock signal corresponding to each display area based on a preset clock signal and a clock division parameter corresponding to each display area, and generating a second enable signal corresponding to each display area based on the divided clock signal corresponding to each display area and a corresponding first enable signal, where the second enable signal corresponding to each display area is configured for driving the display area corresponding to the second enable signal to perform display at a target refresh rate. Therefore, at least some of the display areas can perform display at different refresh rates, thereby reducing power consumption of an electronic device.

Abstract: In a method for writing data to a solid-state drive, both a byte-level write interface and a page-level write interface are provided. Full-page input/output (I/O) data is written to a flash chip through the page-level interface, and small I/O data is written to a storage class memory (SCM) chip through the byte-level interface.

Abstract: A hardware mechanism at each dielet of a multi-dielet processing system is aware of engine page-table binds at all the dielets, thereby providing accurate traffic notifications to software (e.g., a unified virtual memory driver) for on-demand page-migration between system memory and GPU memory. The mechanism broadcasts binding information to access counters on each dielet so the access counters are able to correlate engines requesting memory access with bound virtual memory pages and generate corresponding informative notifications. A flexible multi-dielet counter clear capability enables software to clear access counters.

Abstract: This application provides a screen drive circuit, a display, and an electronic device. An input terminal of a drive selection circuit in the screen drive circuit inputs a row drive signal, and a control terminal of the drive selection circuit inputs a row address selection signal. The drive selection circuit outputs, based on the row address selection signal, the row drive signal corresponding to a pixel row whose displayed content changes. The row address selection signal is generated, by a display drive chip connected to the display, based on the pixel row whose displayed content changes. It can be learned that, the screen drive circuit can separately select, based on an update frequency of displayed content on the display, some pixel rows in a pixel array for content refreshing, thereby implementing local refreshing based on the displayed content.

Abstract: Using deep learning, imaging harmonization among images produced with differing PET tracers is achieved. A method may include providing an original PET image of the brain using an original PET tracer, providing a target PET tracer, and converting, using a deep learning neural network, the original PET image into a target PET image simulating the image that would be obtained had the target PET tracer been used.

Abstract: Embodiments of this application provide a refresh rate switching method, an electronic device, and a system. After being in a communication connection to a stylus, the electronic device may display a picture at a first refresh rate. The user may operate the electronic device, so that a refresh rate of the electronic device is switched from the first refresh rate to a second refresh rate. When the user holds the stylus again to approach a screen, the electronic device switches from the second refresh rate to a third refresh rate, where the first frequency is an integer multiple of the third refresh rate; and then after the electronic device sends a wake-up signal to the stylus, the stylus may intercept the wake-up signal, to send an uplink signal, and then the electronic device may receive the uplink signal from the stylus, and may keep signal synchronization with the stylus.

Abstract: This application provides example data processing methods and systems. One example data processing method includes obtaining a first metadata stream of a first file system, where the first metadata stream is a streaming structure and includes multiple records, and each of the multiple records includes an identifier of a node in the first file system, an identifier of a parent node of the node, and an attribute of the node. A hierarchy of multiple nodes in the first file system is determined based on the first metadata stream.

Abstract: A data migration method and a related apparatus are provided. An example migration scheduling apparatus determines a migration task of migrating data of a first file from a source device to a destination device, and performs a first change on metadata of the first file, to trigger the source device or the destination device to complete the migration task based on the first change performed on the metadata of the first file.

Abstract: Properly parking personal mobility vehicles (PMVs) is an important for safety and public satisfaction. The large number of daily rides of ride-share PMVs makes it impossible to verify manually that each PMV is properly parked. Aspects of this disclosure include systems and methods for verifying that PMVs are properly parked. These systems and methods can include training a machine learning model on a server. The system can request that users submit images to the server, such that the server can verify that the user properly parked the PMV. The server can transmit a finished indication when it determines that the user properly parked the vehicle. The server can transmit instructions to the user to take various actions when it determines that the user improperly parked the vehicle or when the image is insufficient to determine whether the user properly parked the vehicle.

Abstract: Using deep learning, imaging harmonization among images produced with differing PET tracers is achieved. A method may include providing an original PET image of the brain using an original PET tracer, providing a target PET tracer, and converting, using a deep learning neural network, the original PET image into a target PET image simulating the image that would be obtained had the target PET tracer been used.

Abstract: Properly parking personal mobility vehicles (PMVs) is an important for safety and public satisfaction. The large number of daily rides of ride-share PMVs makes it impossible to verify manually that each PMV is properly parked. Aspects of this disclosure include systems and methods for verifying that PMVs are properly parked. These systems and methods can include training a machine learning model on a server. The system can request that users submit images to the server, such that the server can verify that the user properly parked the PMV. The server can transmit a finished indication when it determines that the user properly parked the vehicle. The server can transmit instructions to the user to take various actions when it determines that the user improperly parked the vehicle or when the image is insufficient to determine whether the user properly parked the vehicle.