Abstract: A heat dissipation apparatus, a remote radio unit, a baseband processing unit and a base station are disclosed. According to an embodiment, the heat dissipation apparatus comprises a base and a plurality of first heat sink fins arranged in parallel on the base. On a top of each first heat sink fin of the plurality of first heat sink fins, a first heat dissipation component and a second heat dissipation component are sequentially arranged along the parallel direction of the plurality of first heat sink fins. The first heat dissipation component comprises a bottom plate and a plurality of second heat sink fins which are arranged at intervals along the parallel direction on a top face of the bottom plate. Each second heat sink fin has a shape of a comb having three or more comb teeth.

Abstract: The application relates to a vibration sounding device including: a housing body with a containment cavity and a sounding unit arranged in the containment cavity. The sounding unit includes a vibration system and a magnetic circuit system. The magnetic circuit system includes a main magnet and a secondary magnet assembly. The vibration sounding device also includes an elastic assembly, a weight assembly, and a drive coil. The second direction is perpendicular to the first direction. By virtue of the configuration, it is beneficial to simplify the forming process of the weight assembly, reduce the production cost, and also facilitate the replacement of the drive coil.

Abstract: The present disclosure provides a speaker including a housing and a vibration system and a magnetic circuit unit that are received in the housing. The magnetic circuit unit includes lower clamp plate and magnetic circuit assembly arranged on lower clamp plate. A central area of lower clamp plate abuts against bottom wall of the housing. An edge area of lower clamp plate is spaced from the bottom wall. The edge area is provided with flange portion bending and extending from lower clamp plate toward the bottom wall. The flange portion abuts against the bottom wall. The flange portion abuts against the bottom wall. In this way, when speaker falls off, flange portions come in contact with bottom wall, such that stability of magnetic circuit unit can be improved, then operational performance and service life can be improved.

Abstract: A speaker device includes: a housing provided with an accommodating space, and a sounding member accommodated in the accommodating space. The sounding member includes a magnetic circuit unit and a vibration unit provided with a diaphragm. The housing includes an upper housing and a lower housing. The lower housing includes: a metal bottom wall, lower metal side walls, and, and sealing connectors respectively provided between two adjacent lower metal side walls of the plurality of lower metal side walls. An end of the lower metal side wall close to the upper housing bends and extends in a direction perpendicular to a vibrating direction of the diaphragm to form a bending edge. The bending edge and a bottom surface of the sealing connectors jointly form a sealing surface. The sealing surface is connected to the upper housing to seal. The speaker device can increase the powder filling space.

Abstract: The present invention relates to an optical nanostructure sensing device and an image analysis method. The image analysis method includes: illuminating a light beam from a predetermined incident angle onto a nanostructure pixel sensor; capturing images of the nanostructure pixel sensor when applying an analyte on the nanostructure pixel sensor; obtaining a relationship of periodic spacing and brightness from each of the images; and obtaining wavelength values from the relationship of periodic spacing and brightness at a predetermined brightness value; and determining a sensing process based on a wavelength shift of the wavelength values. The nanostructure pixel sensor includes a plurality of the nanostructure pixels, each of the nanostructure pixels includes periodic nanostructures, and the relationship of periodic spacing and brightness is based on the brightness of the nanostructure pixels having different periodic spacings.

Abstract: Provided is a speaker box, including a speaker, comprises a frame, a first vibration system and a magnetic circuit system fixed on the frame; the first vibration system providing a diaphragm vibrate along a first direction; a housing with an accommodation space, includes: a bottom wall facing the diaphragm, and a sidewall bending and extending from an outer edge of the bottom wall; wherein the speaker received in the accommodation space, and the frame of the speaker comprises a split body of a first frame and a second frame, the second frame extends and fixed to the sidewall.

Abstract: The present invention provides a multifunctional electromagnetic transducer including: a housing providing with an accommodation space; a speaker received in the accommodation space, the speaker including: a first vibration system with a voice diaphragm, and a first magnetic circuit system fixed to the housing driving the voice diaphragm to vibrate along a first direction and generate sounds; a vibrator received in the accommodation space driving the multifunctional electromagnetic transducer to vibrate along a second direction, the vibrator including: a second vibration system with a vibration diaphragm, and a second magnetic circuit system flexible suspending on the housing driving the voice diaphragm to vibrate; wherein the voice diaphragm, the voice diaphragm and a housing enclosed a rear chamber.

Abstract: Provided is a speaker, including a frame; a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and produce sound. The vibration unit includes a diaphragm and a voice coil; the diaphragm includes a first suspension, a second suspension and a vibrating portion; the magnetic circuit unit is provided with a magnetic gap, and the voice coil is inserted in the magnetic gap; the magnetic circuit unit includes a yoke; and the yoke and the diaphragm are arranged at two opposite sides of the frame; and the vibration unit further includes a fixing ring connected to the magnetic circuit unit; the second suspension surrounds the fixing ring; and an inner peripheral side of the second suspension is fixed to an end of the fixing ring away from the yoke. With this structure, the acoustic performance of the speaker can be improved.

Abstract: A method and apparatus that resolve near touch ambiguities in a touch screen includes detecting a touch screen touch event and detecting a vibro-acoustic event. These events generate signals received respectively by two different sensors and/or processes. When the two events occur within a pre-defined window of time, they may be considered to be part of the same touch event and may signify a true touch.

Abstract: Provided is a speaker, including a frame, a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and produce sound. The vibration unit includes a diaphragm and a voice coil; the diaphragm includes a first suspension, a second suspension and a vibrating portion; the magnetic circuit unit includes a magnetic gap, and the voice coil is inserted in the magnetic gap; the magnetic circuit unit includes a yoke; and the vibration unit further includes a fixing ring connected to the magnetic circuit unit; an inner peripheral side of the second suspension is fixed to an outer side of the fixing ring; and a connection position of the second suspension and the fixing ring is located between two opposite ends of the fixing ring along a vibrating direction of the diaphragm. With this structure, sealing performance of the speaker is improved.

Abstract: The invention provides a multifunctional sounding device having a housing body with a containment cavity and a sounding unit. The sounding unit includes a vibration system and a magnetic circuit system that drives the vibration system along a first direction. The magnetic circuit system includes a main magnet and a secondary magnet to form a magnetic gap. The multifunctional sounding device further includes an elastic assembly fixedly connected to the housing body, a weight connected to the elastic assembly, and a driving coil fixed to the weight and vibrating together with the weight along a second direction. The driving coil includes a first side edge and a second side edge disposed opposite to the first side edge. The device has both a vibration feedback function and a voice feedback function, which is beneficial to reduce the volume of the electronic device.

Abstract: An electronic device includes a heat dissipation part, a plurality of electronic components, and a fixed potential part. The electronic component is fastened to the heat dissipation part, and an insulation pad is disposed between the electronic component and the heat dissipation part. The fixed potential part has a fixed potential, and the heat dissipation part is electrically connected to the fixed potential part. The heat dissipation part has the fixed potential, a potential difference between the electronic component and the heat dissipation part is reduced, and a requirement of a safety specification between the electronic component and the heat dissipation part is reduced. The electronic component can be relatively close to the heat dissipation part, and a surrounding energized component of the heat dissipation part can also be closer to the heat dissipation part.

Abstract: The present invention provides a multifunctional electromagnetic transducer including: a housing providing with a sound port and a speaker fixed with the housing. The speaker includes a frame forming an accommodating cavity cooperatively with the housing, a vibration system supported on the frame and received in the accommodating cavity; and a magnetic circuit system received in the accommodating cavity driving the vibration system to vibrate along a first direction and generate sounds. The multifunctional electromagnetic transducer further includes a flexible support disposed on a side of the magnetic circuit system distal to the vibration system and secured to the housing. The magnetic circuit system is suspended in the accommodating cavity by the flexible support and moves along the first direction.

Abstract: The present disclosure relates to a sampling and sensing device and a method of using the sampling and sensing device for collecting and sensing chemical or biological analytes. The sampling and sensing device comprises a handle and a foldable head having a sampling region and a sensing region. A sensor chip may be disposed in the sensing region and a sampling wipe may be disposed in the sensing region. The sampling region is configured to collect an analyte. After the analyte is collected on the sampling region, the sampling and sensing device can be folded to make the sampling region in contact with or face the sensing region to transfer the analyte to the sensing region for analysis.

Abstract: Disclosed is a nursing machine that includes a wearable working head and a urine detection circuit. The urine detection circuit includes at least two first urine sensors and at least two second urine sensors that are arranged on the working head. In response to more than one first urine sensor each outputting a liquid detected signal or in response to more than one second urine sensor each outputting the liquid detected signal, the urine detection circuit is configured to output a urine signal. In response to only one first urine sensor or only one second urine sensor outputting the liquid detected signal or in response to only one first urine sensor and only one second urine sensor each outputting the liquid detected signal, the urine detection circuit doesn't output the urine signal.

Abstract: Provided is a speaker, including a frame; a vibration unit; and a magnetic circuit unit. The magnetic circuit unit is provided with a magnetic gap; the vibration unit includes a diaphragm, and a voice coil; the magnetic circuit unit includes a yoke, a main magnet unit, and auxiliary magnet units, and the auxiliary magnet units and the main magnet unit define the magnetic gap; the vibration unit further includes two elastic support assemblies; each of which includes an elastic member and an auxiliary diaphragm; the elastic member includes a first fixing arm, a second fixing arm and an elastic arm; the auxiliary diaphragm includes an auxiliary suspension, and a first connecting portion and a second connecting portion; and the auxiliary suspension has a racetrack shape with notches. With this structure, the service life and reliability of the speaker are improved.

Abstract: A speaker device includes a frame, a vibration unit fixedly connected to the frame, a magnetic circuit unit having a magnetic gap, and a screen cloth. The vibration unit includes a diaphragm and a voice coil. The magnetic circuit unit includes a carrier, a first main magnet, an auxiliary magnet and a magnetic conductive plate. The magnetic conductive plate is fixed to the frame. The magnetic conductive plate includes a first central portion and a first edge portion; the auxiliary magnet is located at the first central portion. The first edge portion is provided with a through hole. The screen cloth is provided at a side of the carrier away from the diaphragm, and includes a second central portion and a second edge portion. The second edge portion is provided with a first groove recessed toward the magnetic conductive plate, corresponding to the through hole.

Abstract: Systems, methods, and non-transitory computer readable media configured to generate enhanced training information. Training information may be obtained. The training information may characterize behaviors of moving objects. The training information may be determined based on observations of the behaviors of the moving objects. Behavior information may be obtained. The behavior information may characterize a behavior of a given object. Enhanced training information may be generated by inserting the behavior information into the training information.

Abstract: Provided is a sounding device, including frame and vibration system and magnetic circuit unit fixed to the frame. The vibration system includes diaphragm, voice coil driving the diaphragm to vibrate and sound, holder fixed to diaphragm, and auxiliary diaphragm spaced from diaphragm. The holder includes holder main body, first connection portion formed from holder main body to magnetic circuit unit and second connection portion spaced from first connection portion. The voice coil is fixed to second connection portion. One end of the auxiliary diaphragm is fixed to frame. One end of first connection portion away from holder main body bends and extends away from second connection portion to form flange. One end of auxiliary diaphragm away from frame is fixed to flange. The sounding device may reduce accuracy deviation and hidden dangers of gluing failure caused by rear assembling of the auxiliary diaphragm.

Abstract: A cart handle and a baby cart in which cart handle includes a fixed member; a handle body rotatable relative to the fixed member; an engagement part having a first portion that non-rotatably engages the handle body and slidably engages the handle body, and having a second portion that non-rotatably engages the fixed member; and an operation part that is actuated to alternately displace the engagement part to an unlocked position, wherein the second portion is not in engagement with the fixed member, thereby permitting rotation of the handle body relative to the fixed member, and displace the engagement part to a locked position, wherein the second portion engages the fixed member, thereby preventing rotation of the handle body relative to the fixed member.