Abstract: A comb-like capacitive microphone includes a substrate penetrated by a cavity having an upper part provided with a step, stationary electrodes equally spaced on the step, and a diaphragm received in the step and including a vibrating portion and a connecting portion connected to the vibrating portion. Movable electrodes protrude from a periphery of the vibrating portion, and an end of the connecting portion away from the vibrating portion is connected to the substrate. The stationary electrodes are arranged in a comb shape and directly etched on the substrate, and the movable electrodes are arranged in a comb shape. The stationary electrodes are spatially separated from the movable electrodes, each stationary electrode is corresponding to each movable electrode. Such structure of the comb-like capacitive microphone offers a relatively large displacement, to decrease the acoustic noise and to offer a high sensitivity, and eventually a sound transducer with high performances.

Abstract: An electronic device includes a substrate and an antenna apparatus. The substrate includes a grounding area. The antenna apparatus includes a first radiating element, a second radiating element, a third radiating element, a first feeding structure, and a second feeding structure that are disposed in the clearance area adjacent to the grounding area. The first radiating element and the grounding area jointly form a slot antenna. The second radiating element is separated from the grounding area. The first feeding structure and the second feeding structure are located at the clearance area and are grounded. The second feeding structure is electrically coupled between the third radiating element and the ground. The antenna apparatus feeds a radiating element using the first feeding structure and the second feeding structure to obtain resonance modes at different frequencies, thereby implementing a dual-band dual-antenna function.

Abstract: The present disclosure provides a camera module and an electronic device. The camera module comprises a bearing base, an image sensor, a baseplate, a lens bracket, and a lens group. The image sensor is disposed at the bearing base. The baseplate is disposed at the bearing base and is separated from the image sensor. The baseplate is disposed on the periphery of the image sensor. The baseplate is electrically connected with the image sensor. The lens bracket is disposed at the bearing base. The image sensor and a part of the baseplate are disposed in the lens bracket. The lens bracket comprises a photosensitive through hole. The image sensor corresponds to the photosensitive through hole. The lens group is disposed at the lens bracket and corresponds to the image sensor through the photosensitive through hole.

Abstract: A distributed antenna system comprises a first access unit and a remote unit, wherein the first access unit and the remote unit are coupled via an analog optical fiber, and the first access unit comprises: a first port configured to receive a first downlink analog radio frequency signal; a first analog-to-digital conversion unit configured to perform analog-to-digital conversion on the first downlink analog radio frequency signal to generate a first downlink digital signal; a first digital processing unit configured to perform digital signal processing on the first downlink digital signal to generate a second downlink digital signal; a first digital-to-analog conversion unit configured to perform digital-to-analog conversion on the second downlink digital signal to generate a second downlink analog radio frequency signal; and an analog optical module configured to perform electro-optical conversion on the second downlink analog radio frequency signal to generate a first downlink analog optical signal.

Abstract: An optic fiber connector assembly, including at least one adapter and at least one connector, is provided. The adapter is correspondingly connected to the connector. The adapter includes a first housing, at least one sleeve disposed in the first housing, at least one bridging portion extending out of a side of the first housing, and at least one locking arm extending from the side and located next to the bridging portion. The sleeve extends from an inside of the first housing to the corresponding bridging portion. The connector includes a second housing, a ferrule disposed in the second housing in a penetrating manner, and a spring abutted between the second housing and the ferrule. The second housing is sleeved onto the bridging portion, the ferrule is inserted into the sleeve, and the locking arm is buckled onto the second housing.

Abstract: A multi-tenant system comprises a monolithic database storing global records, each including global fields common for all tenants; a custom field database storing custom records, each including custom fields for a tenant; a custom field record service processing a custom record storage request by instructing the custom field database to store custom field values of the custom record for the tenant, and processing a custom record fetch request by instructing the custom field database to retrieve the custom field values; a monolithic application configured to receive a record storage or fetch request, configured to partition the record storage request into the global record storage request and the custom record storage request, configured to send the custom record storage request to the custom field record service, configured to partition the record fetch request into the global record fetch request and the custom record fetch request, and configured to send the custom record fetch request to the custom field r

Abstract: A power management system for a headset includes a step-up converter and a step-down converter. The step-up converter increases the voltage and decreases the current supplied by the power supply. The power is transmitted via transmission lines at the increased voltage. The step-down converter decreases the voltage to a suitable level for various components of a power rail assembly. The power lost in the transmission lines is proportional to the square of the current. The power saved by transmission at a lower current in the transmission lines is greater than the power lost by the step-up converter and the step-down converter.

Abstract: A light detection and ranging (LiDAR) scanning system is provided. The system comprises a light steering device; a galvanometer mirror controllable to oscillate between two angular positions; and a plurality of transmitter channels configured to direct light to the galvanometer mirror. The plurality of transmitter channels are separated by an angular channel spacing from one another. The system further comprises a control device. Inside an end-of-travel region, the control device controls the galvanometer mirror to move based on a first mirror movement profile. Outside the end-of-travel region, the control device controls the galvanometer mirror to move based on a second mirror movement profile. The second mirror movement profile is different from the first mirror-movement profile. Movement of the galvanometer mirror based on the first mirror movement profile facilitates minimizing instances of scanlines corresponding to the end-of-travel region having a pitch exceeding a first target pitch.

Abstract: A method for maintaining cache of database objects using a chain set that includes multiple chains each specifying an ordering of database objects is disclosed. In response to a change of state of a particular database object, a corresponding chain is selected. The selected chain is then locked, the state of the particular database object changed, and then the selected chain is unlocked.

Abstract: Methods and systems for rotating elements displayed by computing devices are described herein. At least one image of a user of a computing device may be captured by a camera of the computing device. An angle of the eyes of the user with respect to the computing device may be determined. Based on that determined angle, at least one element of content displayed by the computing device may be rotated so as to allow for display of that element in an orientation consumable by the user. For example, the element might be rotated at an angle corresponding to the angle of the eyes of the user with respect to the orientation of the computing device.

Abstract: Methods and systems are described herein for generating dynamic conversational responses. Conversational responses include communications between a user and a system that may maintain a conversational tone, cadence, or speech pattern similar to a human during an interactive exchange between the user and the system. The interactive exchange may include the system responding to one or more user actions (which may include user inactions), and/or predicting responses prior to receiving a user action.

Abstract: The invention relates to the field of vehicle technologies, and aims to solve a technical problem that when light control for avoidance of a vehicle is improper, traveling safety of the present vehicle, traveling safety of vehicles ahead for which light is controlled for avoidance, and/or safety, walking experience, etc. of the pedestrians for whom light is controlled for avoidance are/is affected to some degree. To solve the technical problem, embodiments of the invention provide a vehicle control method and apparatus, a control apparatus, a vehicle-mounted device, a vehicle, and a computer-readable storage medium. The control method includes: detecting target objects in front of a vehicle; determining whether the target objects are on a traveling path of the vehicle; and performing light control for avoidance for the target objects based on a determination result in a predetermined manner.

Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.

Abstract: Disclosed in the present disclosure are a pyrimidine-fused cyclic compound or a pharmaceutically acceptable salt, hydrate, prodrug, stereoisomer, solvate or isotope labeled compound thereof. Also provided in the present disclosure are a preparation method for the compound, a composition comprising the compound and a use of the compound for the preparation of a medicament for the prevention and/or treatment of a disease or condition associated with abnormal SHP2 activity.

Abstract: Disclosed is a federated learning method for a k-means clustering algorithm. Horizontal federated learning includes the following steps: 1) initializing K clusters, and distributing, a local sample to a cluster closest to the sample; 2) calculating a new cluster center of the cluster; and 3) if the cluster center changes, then returning to step 1). Vertical federated learning includes the following steps: 1) running, the k-means clustering algorithm locally to obtain T local clusters and intersecting to obtain TL new clusters, or running an AP clustering algorithm to obtain Ti clusters and intersecting to obtain ?i=1LTi new clusters; 2) taking TL (?i=1LTi) new cluster centers as input samples, and initializing the K clusters; 3) distributing each sample to the cluster closest to the sample; 4) calculating a new cluster center of the cluster; and 5) if the cluster center changes, then returning to step 3).

Abstract: The present invention relates to methods and compositions for performing quantitative polymerase chain reaction (qPCR) to screen for previously undiscovered inducible prophages from various bacterial strains. The present invention also relates to methods for performing qPCR to identify inducible prophages for creation of functional non-replicative transcription particles (NRTPs).

Abstract: A method for expanding a dynamic range of a light detection and ranging (LiDAR) system is provided. The method comprises transmitting, using a light source of the LiDAR system, a sequence of pulse signals consisting of two or more increasingly stronger pulse signals. The method further comprises receiving, using a light detector of the LiDAR system, one or more returned pulse signals corresponding to the transmitted sequence of pulse signals. The one or more returned pulse signals are above the noise level of the light detector. The method further comprises selecting a returned pulse signal within the dynamic range of the light detector, identifying a transmitted pulse signal of the transmitted sequence that corresponds to the selected returned pulse signal, and calculating a distance based on the selected returned signal and the identified transmitted signal.

Abstract: Described are methods and systems are for generating dynamic conversational queries. For example, as opposed to being a simply reactive system, the methods and systems herein provide means for actively determining a user's intent and generating a dynamic query based on the determined user intent. Moreover, these methods and systems generate these queries in a conversational environment.

Abstract: Provided is a heat dissipation sheet capable of effectively enhancing adhesiveness and long-term insulation reliability. The heat dissipation sheet according to the present invention contains first inorganic particles having an aspect ratio of 2 or less, second inorganic particles having an aspect ratio of more than 2, and a binder resin. In this heat dissipation sheet, a content of the second inorganic particles is larger than a content of the first inorganic particles in 100% by volume of a region having a thickness of 15% on a first surface side in a thickness direction, and the content of the first inorganic particles in 100% by volume of the region having a thickness of 15% is larger than the content of the first inorganic particles in 100% by volume of a central region having a thickness of 70%.