Abstract: A method of cyclic etching, comprising: (A) depositing, prior to cyclically etching a substrate through a mask opening, a pre-etch protection layer conformally over the mask, sidewalls of the mask defining the mask opening; and an exposed portion of the substrate exposed through the mask opening, the pre-etch protection layer deposited to a first thickness; and (B) cyclically etching the substrate by: (i) depositing a protection layer in the opening of the mask, the protection layer deposited to a second thickness that is less than half of the first thickness; (ii) etching through a portion of the protection layer disposed on the substrate and etching the substrate; and (iii) repeating (i) and (ii) until an end point is reached.

Abstract: An improved systems and methods for generating a synthetic defect image are disclosed. An improved method for generating a synthetic defect image comprises acquiring a machine learning-based generator model; providing a defect-free inspection image and a defect attribute combination as inputs to the generator model; and generating by the generator model, based on the defect-free inspection image, a predicted synthetic defect image with a predicted defect that accords with the defect attribute combination.

Abstract: A vehicle diagnostics technology is provided. Further, a vehicle fault diagnostic method, an on-board diagnostic apparatus, and a related system that are used for advanced intelligent driving are provided. In an example method, a first diagnostic module monitors and records first fault information, and a second diagnostic module monitors and records second fault information. The second diagnostic module sends the second fault information to the first diagnostic module. The example method further includes the first diagnostic module communicating with a master computer through a first communication interface and the second diagnostic module communicating with the master computer through a second communication interface.

Abstract: A benzo[b]selenophene STING regulator, a preparation method therefore and use thereof are disclosed. The structure of the compound is shown in Formula I. A derivative, salt, stereoisomer, prodrug molecule and pharmaceutical composition of the present invention can serve as an immune regulator to effectively activate an innate immune regulation passageway to kill tumor cells.

Abstract: An audio decoding method includes obtaining an encoded bitstream; performing bitstream demultiplexing on the encoded bitstream, to obtain a high frequency band parameter of a current frame of an audio signal, wherein the high frequency band parameter indicates a location, a quantity, and an amplitude or energy of a tone component comprised in a high frequency band signal of the current frame; obtaining a reconstructed high frequency band signal of the current frame based on the high frequency band parameter; and obtaining an audio output signal of the current frame based on the reconstructed high frequency band signal of the current frame.

Abstract: An audio signal classification method includes determining, according to voice activity of a current audio frame, whether to obtain a frequency spectrum fluctuation of the current audio frame and store the frequency spectrum fluctuation in a frequency spectrum fluctuation memory, and updating, according to whether the audio frame is percussive music or activity of a historical audio frame, frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory, and classifying the current audio frame as a speech frame or a music frame according to statistics of a part or all of effective data of the frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory.

Abstract: Various embodiments include a mobile storage device control system. The system may include an independently operating scanning apparatus configured to: detect insertion of a mobile storage device, scan the mobile storage device to determine whether the mobile storage device poses a security threat, perform a specific operation on the mobile storage device so the specific operation is recorded in a file system log of the mobile storage device, and the record of the specific operation is used to mark whether the mobile storage device has been modified after being scanned. The system may include a control apparatus configured to: detect insertion of the mobile storage device, check whether the last record in the file system log in the mobile storage device is the record of the specific operation, if so, permit a user to access the mobile storage device and otherwise prohibit the user from accessing the mobile storage device.

Abstract: In some implementations, the disclosed systems and methods a user can be at a source location (e.g., XR environment, two-dimensional webpage/browser, etc.) and input received can trigger traveling the user to a target XR environment (e.g., an immersive environment). In some implementations, the disclosed systems and methods a user can spawn a virtual portal in an origin virtual world for travel to a destination virtual world for the creating user and a group of other users having avatars near that of the creating user. In some implementations, the disclosed systems and methods a user can be at a source location (e.g., XR environment, two-dimensional webpage/browser, etc.) and input received can trigger traveling the user to a target XR environment (e.g., an immersive environment).

Abstract: A method for obtaining a higher-order ambisonics (HOA) coefficient includes obtaining location information of a virtual speaker on a preset spherical surface, where the preset spherical surface includes M circles of longitude and N circles of latitude, and obtaining, based on the location information and a preset reference trigonometric function table, a trigonometric function value corresponding to the location information, where the reference trigonometric function table includes an elevation trigonometric function table and/or an azimuth trigonometric function table, and obtaining an HOA coefficient for the virtual speaker based on the trigonometric function value corresponding to the location information.

Abstract: A data processing apparatus and method are provided. The method includes: performing multi-level IR decomposition on original application code, extracting more abundant computation and data flow features to obtain an initial computational graph, and performing graph transformation processing on the initial computational graph to obtain a target computational graph, allowing an application corresponding to original application code to run in different systems and implement performance portability.

Abstract: This application provides a method and an apparatus for determining a virtual speaker set. The method for determining a virtual speaker set includes: determining a target virtual speaker from F preset virtual speakers based on a to-be-processed audio signal, where each of the F virtual speakers corresponds to S virtual speakers, F is a positive integer, and S is a positive integer greater than 1; and obtaining, from a preset virtual speaker distribution table, respective position information of S virtual speakers corresponding to the target virtual speaker, where the virtual speaker distribution table includes position information of K virtual speakers, the position information includes an elevation angle index and an azimuth angle index, K is a positive integer greater than 1, F?K, and F×S?K. This application can improve audio signal playback effect.

Abstract: A switchable antenna assembly is provided. The switchable antenna assembly includes a substrate, a ground plane disposed on the substrate, and a feed. The switchable antenna assembly includes a first planar antenna element extending from the ground plane in a first direction. The first planar antenna element is coupled to the feed by a first transmission line and is configured to produce a first radiation pattern. The switchable antenna assembly includes a second planar antenna element extending from the ground plane in a second direction orthogonal to the first direction of first planar antenna element and is configured to produce a second radiation pattern. The switchable antenna assembly includes a single pole—two-throw switching element configured to selectively couple one of the first transmission line or the second transmission line to the feed.

Abstract: An antenna configured to operate at millimeter wave frequencies is provided. The antenna includes a substrate and a ground plane. The antenna includes one or more active patch antenna elements that collectively define four corners, wherein the active patch antenna element(s) are positioned on a first surface of the substrate. The antenna includes four parasitic patch elements coplanar to the active patch antenna element(s) and adjacent to each respective corner of the active patch antenna element(s). The antenna includes a switching circuit configured to dynamically couple, to the ground plane, the first parasitic patch element, the second parasitic patch element, the third parasitic patch element, and/or the fourth parasitic patch element.

Abstract: A display panel and control methods thereof are provided. In one example, the display panel includes, a first substrate and a second substrate opposite to each other, and a solution encapsulated between the first substrate and the second substrate. In some examples, the solution includes opaque charged particles. In some examples, the first substrate includes a first electrode, the first electrode including a plurality of discrete sub-electrodes, and the second substrate includes a second electrode. Further, the control method may include adjusting an electric field between each of the plurality of discrete sub-electrodes and the second electrode, causing the opaque charged particles to undergo a gathering motion or a scattering motion.

Abstract: A bit allocation method and apparatus for an audio object are disclosed, which relate to the field of audio encoding and decoding technologies. The method includes: separately pre-rendering a plurality of audio objects to be pre-rendered in an audio frame, to obtain a plurality of pre-rendered audio objects; obtaining respective perceptual importance parameter values of the plurality of pre-rendered audio objects; obtaining a bit allocation parameter value of a current audio object to be pre-rendered based on the respective perceptual importance parameter values of the plurality of pre-rendered audio objects; and determining, based on the bit allocation parameter value of the current audio object to be pre-rendered and a total quantity of to-be-allocated bits corresponding to the plurality of audio objects to be pre-rendered, a target quantity of bits allocated to the current audio object to be pre-rendered.

Abstract: The preparation of an aromatic heterocyclic derivative as an immunomodulator and the use thereof. Specifically, provided is a compound as represented by formula I below, or an optical isomer, a hydrate, a solvate, or a pharmaceutically acceptable salt thereof, wherein the definition of each group is as described in the description; and the compound of formula I can be used to treat diseases associated with the PD-1/PD-L1 signaling pathway.

Abstract: A method for processing an audio signal includes receiving a bitstream corresponding to the audio signal; obtaining a silence insertion descriptor (SID) type of a current frame of the audio signal by decoding the bitstream; obtaining a low-band parameter of the current frame by decoding the bitstream; obtaining a low-band signal of the current frame based on the low-band parameter; obtaining, based on the SID type of the current frame, a high-band parameter of the current frame; obtaining a high-band signal of the current frame based on the high-band parameter; and obtaining a synthesis signal of the current frame based on the low-band signal and the high-band signal.

Abstract: A time threshold model creation method and a time threshold model creation system based on an autonomous braking system are provided. The method includes the steps of: obtaining braking data about a target vehicle; creating a three-dimensional space in accordance with a braking time, a speed of the target vehicle, and a relative speed, and obtaining a point cloud of the braking data in the three-dimensional space; dividing a two-dimensional plane defined by the speed of the target vehicle and the relative speed into a plurality of statistical regions, and calculating a probability in each statistical region to obtain a fitted probability distribution curve; calculating a time threshold in each statistical region in accordance with the fitted probability distribution curve; and obtaining a target curve surface of the time thresholds in accordance with the distribution of the time threshold in each statistical region in the three-dimensional space.