Abstract: Embodiments of the present disclosure provide a speaker. The speaker may include a diaphragm; a magnetic circuit component; and a coil connected to the diaphragm, at least part of the coil being arranged in a magnetic gap formed by the magnetic circuit component, and the coil driving the diaphragm to vibrate to generate sound after the coil being energized. The diaphragm may include a main-body region and a folded-ring region surrounding the main-body region, the main-body region may include a first inclined section and a first connecting section connected to the coil, the first inclined section may be attached to a portion of the folded-ring region, and the first inclined section may be tilted in a direction away from the coil with respect to the first connecting section.

Abstract: Disclosed is a recoverable and self-expanding short-frame valve suitable for aortic valve regurgitation, including a tubular frame and valve leaflets. The tubular frame can contract to a delivery configuration or expand to a use configuration in a radial direction; the tubular frame includes a first portion and a second portion integrally formed and coaxially arranged; a waist portion is formed at the junction of the first portion and the second portion when the tubular frame is in the use configuration; and the second portion is divergently arranged in a direction away from the waist portion. According to the present disclosure, the complete recovery of the valve can be realized without affecting the later coronary intervention.

Abstract: The present disclosure relates to a loudspeaker. The loudspeaker may include a loudspeaker mechanism, a fixing mechanism, and a connector. The loudspeaker mechanism may be configured to generate a vibration signal and transmit the vibration signal to the human body. The fixing mechanism may be configured to support and maintain the position of the loudspeaker mechanism. The connector may be configured to connect the loudspeaker mechanism with the fixing mechanism. The loudspeaker mechanism may at least include a first fixed position and a second fixed position. The first fixed position may be a fixed position of the loudspeaker when the loudspeaker is in a non-working state. The second fixed position may be a fixed position of the loudspeaker when the loudspeaker is in a working state. The connector may be configured to switch the loudspeaker mechanism between the first fixed position and the second fixed position.

Abstract: Disclosed are a display apparatus and a display method. The display apparatus includes a display; a remote controller, including multiple keys and configured to: output an infrared signal carrying a first infrared key value in response to selection of an integrated key from the user, the integrated key is configured for replacing at least two omitted keys not disposed on the remote controller, the omitted keys are keys not arranged on the remote controller; and a controller is configured to: identify an infrared key value of an infrared signal corresponding to the integrated key; control the display to display a key interface when the infrared key value being the first infrared key value; the key interface includes at least two first controls corresponding to the omitted keys; and generate a target infrared key value when a selection of one of the at least two first controls from the user.

Abstract: The present disclosure provides an earphone comprising a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of the ear hook's projection on a user's sagittal plane includes a first curve having an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component on the sagittal plane. The extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane, and the upper vertex is a highest point of an inner contour of the ear hook along the user's vertical axis. An inclination angle of the long-axis direction relative to a horizontal direction is within a range of 13°-21°.

Abstract: Techniques are described for improving the efficiency of collaboration session synchronization between applications, particularly applications that consume heavy application data. In an embodiment, a computer-implemented method comprises employing, by an application server operatively coupled to a processor, a context management server to manage synchronization of usage context information between a first client device and one or more second client devices related to simultaneous usage of an application provided by the application server during a collaboration session established between the first client device and the one or more second client devices. The method further comprises managing, by the application server, synchronization and exchange of application data between the first client device and the one or more second client devices during the collaboration session without sharing the application data with the context management server.

Abstract: The present disclosure relates to a speaker device. The speaker device may include an ear hook, a core housing for accommodating an earphone core, and a circuit housing for accommodating a control circuit or a battery. The ear hook may include a first plug end and a second plug end. The ear hook may be surrounded by a protective sleeve which may be made of an elastic waterproof material. The ear hook may be elastic, and a position of the core housing relative to the ear hook may be changed according to an elastic deformation of the ear hook, thereby the core housing may fit a user in front of or behind an ear of the user. The circuit housing may be fixed to the second plug end. The control circuit or the battery may drive the earphone core to vibrate to generate a sound.

Abstract: The present disclosure provides eyeglasses including an eyeglass rim; an eyeglass temple, the eyeglass temple comprising a control circuit or a battery; a rotating shaft, the rotating shaft being configured to connect the eyeglass rim and the eyeglass temple, so that the eyeglass rim and the eyeglass temple are relatively rotated around the rotating shaft, and the rotating shaft being disposed with a rotating shaft wiring channel along an axial direction; a connection wire, the connection wire passing through the rotating shaft wiring channel and extending to the eyeglass rim and the eyeglass temple, respectively; and a speaker, the speaker comprising an earphone core, and a core housing for accommodating the earphone core, the speaker being connected to the eyeglass temple.

Abstract: The present disclosure provides glasses including: a glasses rim; a glasses temple; a rotating shaft, the rotating shaft being configured to connect the glasses rim and the glasses temple, so that the glasses rim and the glasses temple are able to relatively rotate around the rotating shaft, and the rotating shaft being disposed with a rotating shaft wiring channel along an axial direction; a connection wire, the connection wire passing through the rotating shaft wiring channel and extending to the glasses rim and the glasses temple, respectively; and a speaker, the speaker comprising an earphone core, the speaker being connected to the glasses temple, the control circuit or the battery in the glasses temple driving the earphone core to vibrate to generate a sound through the connection wire.

Abstract: A conductive terminal includes a first pair of clamping arms forming a first clamping portion for connecting with a wire, and a second pair of clamping arms connected to the first pair of clamping arms by a connecting part. The first clamping portion has a first clamping sub-portion and a second clamping sub-portion distributed along a length direction. The second pair of clamping arms forms a second clamping portion. The second clamping portion has a third clamping sub-portion and a fourth clamping sub-portion distributed along the length direction. The first clamping sub-portion corresponds to the third clamping sub-portion in the length direction. A width of the first clamping sub-portion is greater than a width of the third clamping sub-portion. The second clamping sub-portion corresponds to the fourth clamping sub-portion in the length direction. A width of the second clamping sub-portion is less than a width of the fourth clamping sub-portion.

Abstract: A method and device for managing establishment of a communications link between an external instrument (EI) and an implantable medical device (IMD) are provided. The method stores, in a memory in at least one of the IMD or the EI, a base scanning schedule that defines a pattern for scanning windows over a scanning state. The method enters the scanning state during which a receiver scans for advertisement notices during the scanning windows. At least a portion of the scanning windows are grouped in a first segment of the scanning state. The method stores, in the memory, a scan reset pattern for restarting the scanning state. Further, the method automatically restarts the scanning state based on the scan reset pattern to form a pseudo-scanning schedule that differs from the base scanning schedule and establishes a communication session between the IMD and the EI.

Abstract: An image acquisition system is disclosed. The image acquisition system includes: an object area configured to form an image on an image side; a condenser lens configured to converge light from the object area, the condenser lens being located on a light path of the object area; a color filter configured to filter the light collected by the condenser lens to obtain single wavelength of light, according to a forward direction of the light, the color filter being placed in front of the condenser lens; and an image sensor configured to receive the image on an imaging plane position of an image space, the image sensor being placed in front of the imaging plane position according to the forward direction of the light. The matrix image acquisition system and the matrix image projection system including the image acquisition system are also disclosed.

Abstract: The present invention belongs to the field of environment monitoring, particularly relates to a CO2 storage state networking monitoring device, system and method with multi-information fusion. The present invention comprises: obtaining orientation electrical signal data and real-time pressure signals, analyzing a fluid flowing state at a view of a pressure sensor through the real-time pressure signals, and obtaining a CO2 flowing state through the orientation electrical signal data; and obtaining a CO2 regional storage state by combining an orientation CO2 content, a CO2 flowing state and the fluid flowing condition at the view of the pressure sensor. By combining accurate short-range CO2 boundary monitoring of orientation electrodes with long-range monitoring of pressure sensors to achieve a wide range of CO2 flowing state monitoring, the present invention can observe more data with higher reliability and effectively aims at the problem of strong inter-well heterogeneity.

Abstract: A stator, a motor, and an electric vehicle are provided. The stator includes: a housing, where the housing has an accommodation space, and an oil inlet is disposed on the housing; a ring-shaped iron core punching sheet, where the iron core punching sheet is disposed in the accommodation space, and abuts against an inner wall of the housing; a spacer sleeve, where the spacer sleeve is sleeved in the iron core punching sheet, an outer surface of the spacer sleeve abuts against a side that is of the tooth part and that faces away from the yoke part, and a slot opening of the stator slot fits with the spacer sleeve to form a third cooling channel; and a flow guiding assembly, where the flow guiding assembly is disposed in the accommodation space. The three-layer oil-injection cooling design can improve a heat dissipation capability of the stator.

Abstract: The present disclosure relates to an open earphone. The open earphone may include a sound production device and an ear hook including a first part and a second part connected in sequence. The first part may be hooked and arranged between an auricle and a head of a user. The second part may extend to a front lateral surface of the auricle and may be connected to the sound production device. The sound production device may be worn at a position that is near an ear canal without blocking an earhole of the user. The sound production device may be at least partially inserted into an auricular concha cavity of the user. An overlap ratio of a projection area of the sound production device on a sagittal plane to a projection area of the auricular concha cavity on the sagittal plane may be not less than 44.01%.

Abstract: Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, 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 within a range of 0.25-0.

Abstract: An action recognition method includes: obtaining original feature submaps of each of temporal frames on a plurality of convolutional channels by using a multi-channel convolutional layer; calculating, by using each of the temporal frames as a target temporal frame, motion information weights of the target temporal frame on the convolutional channels according to original feature submaps of the target temporal frame and original feature submaps of a next temporal frame, and obtaining motion information feature maps of the target temporal frame on the convolutional channels according to the motion information weights; performing temporal convolution on the motion information feature maps of the target temporal frame to obtain temporal motion feature maps of the target temporal frame; and recognizing an action type of a moving object in image data of the target temporal frame according to the temporal motion feature maps of the target temporal frame on the convolutional channels.

Abstract: The present disclosure provides an earphone including a sound production component, an ear hook, and a microphone assembly. The microphone assembly includes a first microphone and a second microphone. The sound production component or ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and second microphone, respectively. An extension line of a line connecting a projection of the first sound hole on a sagittal plane of the user and a projection of the second sound hole on the sagittal plane has an intersection point with a projection of an antihelix, a ratio of a first distance between the projection of the first sound hole on the sagittal plane and the projection of the second acoustic hole on the sagittal plane to a second distance between the projection of the second acoustic hole on the sagittal plane and the intersection point is 1.8-4.4.

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.