Abstract: A loudspeaker device may include a speaker component, a circuit housing configured to accommodate a control circuit, and a key module disposed on the core housing. The speaker component may include an earphone core and a core housing for accommodating the earphone core. The control circuit may drive the earphone core to vibrate to generate a sound, and the vibration of the earphone core may include at least two resonance peaks. The key module may include a key and an elastic bearing for supporting the key. The elastic bearing may include an integrally formed bearing body and a support column.

Abstract: A system includes a bootstrap circuit having an input and an output. The bootstrap circuit includes a boost capacitor having a first terminal and a second terminal, a first transistor coupled between the first terminal of the boost capacitor and the output of the bootstrap circuit, a second transistor, and a third transistor, wherein the second transistor and the third transistor are coupled in series between a gate of the first transistor and the second terminal of the boost capacitor. The system also includes a switch transistor, wherein a gate of the switch transistor is coupled to the output of the bootstrap circuit, and a terminal of the switch transistor is coupled to the input of the bootstrap circuit.

Abstract: A face detection method includes: acquiring a target image; invoking a face detection network, and processing the target image by using a feature extraction structure of the face detection network, to obtain original feature maps corresponding to the target image; the original feature maps having different resolutions; processing the original feature maps by using a feature enhancement structure of the face detection network, to obtain an enhanced feature map corresponding to each original feature map; the feature enhancement structure being obtained by searching a search space, and the search space used for searching the feature enhancement structure being determined based on a detection objective of the face detection network and a processing object of the feature enhancement structure; and processing the enhanced feature map by using a detection structure of the face detection network, to obtain a face detection result of the target image.

Abstract: The present disclosure belongs to the field of geological exploration, and particularly relates to a seismic acquisition system based on a frequency domain expansion MEMS sensor, aiming at solving the problem that vibration frequencies exceed the frequency range of the MEMS sensor due to strong vibrations and cross coupling of multi-frequency signals usually occurring in well logging while drilling. When the MEMS sensor suffers strong vibrations or the MEMS sensor that can be selected cannot ensure that the frequency requirement of a measurement signal is stably met, the frequency domain expander of the present disclosure expands the frequency domain of a detection signal, so that the MEMS sensor can measure strong vibrations and out-of-band frequencies to a certain extent, the application range of the seismic acquisition system is extended, and the anti-mutation capability of the seismic acquisition system is improved.

Abstract: The present disclosure provides a semiconductor device and a fabricating method thereof includes a source structure, a drain structure, a gate structure, a bottom dielectric layer, a gate dielectric layer, a channel structure, and a metal nitride layer. The source structure and the drain structure are stacked in a vertical direction, and the gate structure is between the drain structure and the source structure. The bottom dielectric layer is disposed between the drain structure and the source structure. The channel structure is disposed between the drain structure and the source structure and is electrically connected the drain structure and the source structure, and the channel structure is partially disposed in the gate structure. The gate dielectric layer is disposed between the channel structure and the gate structure. The metal nitride layer is disposed between the gate dielectric layer and the gate structure.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a core housing, a circuit housing, an ear hook, and a housing sheath. The core housing may be configured to accommodate an earphone core. The circuit housing may be configured to accommodate a control circuit or a battery. The control circuit or the battery may be configured to drive the earphone core to vibrate to produce sound. The ear hook may be configured to connect the core housing and the circuit housing. The housing sheath may at least partially cover the circuit housing and the ear hook. The housing sheath may include waterproof material. The waterproof performance of the speaker device may be improved through sealed connections among various components of the speaker device in the present disclosure.

Abstract: A speaker device is provided. The speaker device may include a circuit housing, an ear hook, a rear hook, and a speaker assembly. The circuit housing may be configured to accommodate a control circuit or a battery. The ear hook may be connected to one end of the circuit housing and at least a part of the ear hook being covered by a first housing sheath. The rear hook may be connected to the other end of the circuit housing and at least a part of the rear hook being covered by a second housing sheath. The first housing sheath and the second housing sheath may cover at least a part of a periphery of the circuit housing from two ends of the circuit housing, respectively. The speaker assembly may include an earphone core and a core housing for accommodating the earphone core.

Abstract: A method is provided for establishing a communication session with an implantable medical device (“IMD”). The method includes configuring an IMD and an external device to communicate with one another through a protocol that utilizes a dedicated advertisement channel. The advertisement period and the scan period of the protocol are independent of one another such that the advertisement and scan periods at least partially overlap intermittently after a number of cycles. When the external device detects one of the advertisement notices, the method includes establishing a communications link between the external device and the IMD.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a core housing, a circuit housing, an ear hook, and a housing sheath. The core housing may be configured to accommodate an earphone core. The circuit housing may be configured to accommodate a control circuit or a battery. The control circuit or the battery may be configured to drive the earphone core to vibrate to produce sound. The ear hook may be configured to connect the core housing with the circuit housing. The housing sheath may at least partially cover the circuit housing and the ear hook. The housing sheath may include waterproof material. The waterproof effect of a speaker device may be improved through sealed connections between various components of the speaker device in this the present disclosure.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a core housing, a circuit housing, an ear hook, and a housing sheath. The core housing may be configured to accommodate an earphone core. The circuit housing may be configured to accommodate a control circuit or a battery. The control circuit or the battery may be configured to drive the earphone core to vibrate to produce sound. The ear hook may be configured to connect the core housing with the circuit housing. The housing sheath may at least partially cover the circuit housing and the ear hook. The housing sheath may include waterproof material. The waterproof effect of a speaker device may be improved through sealed connections between various components of the speaker device in this the present disclosure.

Abstract: In some embodiments, the present disclosure provides an algorithm for a data-driven intelligent adaptive model of an automobile cab based on a biometric identification technology. The algorithm includes the following steps: acquiring driving posture data, the driving posture data including driver information, automobile man-computer parameter information, and seat position information; building a feature extraction model of the driving posture data and screening feature vectors playing a significant role in predicting a seat position by the feature extraction model; building a prediction model of a comfortable seat position by a back propagation (BP) neural network and inputting the screened feature vectors to perform training on the prediction model; and inputting specific feature vectors to obtain the seat position information and accordingly adjust the seat position.

Abstract: A loudspeaker apparatus includes a circuit housing configured to accommodate a circuit component or a battery; an ear hook; a housing of an earphone core configured to accommodate the earphone core; and a housing protector at least partially covering a periphery of the circuit housing and the ear hook. A first end of the ear hook is connected to the circuit housing. The earphone core is driven by the circuit component or the battery to vibrate to generate sound. The housing of the earphone core is connected to a second end of the ear hook away from the circuit housing through a hinge component. The hinge component is capable of rotating to change a position of the housing of the earphone core relative to the ear hook.

Abstract: A system comprises a memory that stores computer executable components; and a processor that executes the computer executable components stored in the memory. A communication component receives a stream of medical images from a medical image data source via a network for displaying in one or more viewports of a medical image visualization application that provides interactive functionalities in association with the displaying. A buffer component stores the medical images, in one or more buffers, as the respective medical images are received. A monitoring component monitors user activity with respect to a rendered subset of the medical images in the one or more viewports in association with usage of the interactive functionalities. A buffer management component regulates storing of the medical images in the one or more buffers by the buffer component as a function of the user activity to facilitate seamless rendering of the medical images.

Abstract: A loudspeaker device may include a speaker component, a circuit housing configured to accommodate a control circuit, and a key module disposed on the core housing. The speaker component may include an earphone core and a core housing for accommodating the earphone core. The control circuit may drive the earphone core to vibrate to generate a sound, and the vibration of the earphone core may include at least two resonance peaks. The key module may include a key and an elastic bearing for supporting the key. The elastic bearing may include an integrally formed bearing body and a support column.

Abstract: The earphone includes a sound generation component including a transducer; at least a portion of the sound generation component extending into a concha cavity of a user; and an ear hook including a first portion and a second portion, the second portion being connected to the first portion, and being connected to the sound generation component to place the sound generation component at a position near an ear canal without blocking an opening of the ear canal. The sound generation component has a first projection on a sagittal plane, and the auricle has a second projection on the sagittal plane. A centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction. A ratio of the first distance to a height of the second projection in the vertical axis direction may be in a range of 0.35-0.6.

Abstract: Among the various aspects of the present disclosure is the provision of compositions of imaging agents and methods for use in detecting, monitoring, and evaluating CCR2 associated diseases, disorders, and conditions.

Abstract: The present disclosure relates to an apparatus. The apparatus may comprise two ear-hook assemblies configured to be hung outside of two ears of a user respectively, and a rear-hook assembly in a curved shape configured to connect the two ear-hook assemblies and wrap around a rear side of the head of the user. The rear-hook assembly may include an elastic metal filament, wires, and an elastic covering body covering the elastic metal filament and the wires.

Abstract: An earphone, including a sound production component; an ear-hook configured to place the sound production component near an ear canal without blocking an opening of the ear canal, at least a portion of the sound production component extends into a concha cavity; and a microphone assembly including a first microphone and a second microphone disposed in the sound production component or the ear hook, the sound production component or the ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and the second microphone, respectively; wherein a projection of the first sound hole on a sagittal plane and a projection of the second sound hole on the sagittal plane have a first distance, a ratio of the first distance to a size of a projection of the sound production component on the sagittal plane along a major axis direction is 0.7-1.2.

Abstract: The application discloses an RF front-end module, comprising a conversion transformer, the conversion transformer comprises a primary winding and a secondary winding located on the same metal layer of a substrate; a first primary coil and first secondary coil are coupled to form a first coupling coil, and a second primary coil and second secondary coil are coupled to form a second coupling coil; when the current direction of the side adjacent to the second coupling coil in the first coupling coil is the same as that of the side adjacent to the first coupling coil in the second coupling coil, the first coupling coil and the second coupling coil are arranged adjacent to each other; when these two current directions are opposite to each other, the first coupling coil and the second coupling coil are arranged away from each other.

Abstract: A stencil step design method and system, a computer readable storage medium and a device. The method comprises: acquiring data of stencil apertures for electronic components in a circuit board, and identifying the stencil apertures for electronic components one by one to determine whether the stencil apertures need to be stepped; and if yes, performing step design for the stencil apertures that need to be stepped according to preset step rules corresponding to the stencil apertures for electronic components one by one so as to generate a stencil step design file with the step design, and outputting the stencil step design file. According to the present disclosure, 90% or more steps can be automatically designed and the stencil step design is in conformity with processing requirements. A manual intervention process is omitted, and the design can be accomplished by several simple steps.