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Patent Searching and Data


Matches 1 - 50 out of 16,865

Document Document Title
WO/2021/000191A1
A light-transmitting rubber composition, a preparation method, and an application in electroacoustic devices. A prepared rubber product can transmit ultraviolet light, therefore ultraviolet curing can be used for bonding assembly, the ef...  
WO/2021/000118A1
Provided is a speaker, comprising: a basket; and a vibration system and a magnetic circuit system respectively fixed at the basket. The vibration system comprises a vibration diaphragm fixed at the basket and a voice coil driving the vib...  
WO/2021/000735A1
A passive radiator and a loudspeaker system are provided. The passive radiator comprises: a radiating surface with geometry providing two surfaces with vertical separation, which are a first surface and a second surface; a primary suspen...  
WO/2020/258363A1
A miniature filter, comprising a substrate (1) having a rear cavity (3) and a film layer (2) provided on the substrate (1) and suspended above the rear cavity (3). The film layer (2) is provided with arranged through holes (4) and employ...  
WO/2020/261877A1
The present invention addresses the problem of providing a piezoelectric film capable of materializing an electroacoustic transduction film or the like that is highly durable and capable of producing an adequate level of sound pressure i...  
WO/2020/258362A1
Disclosed is a microfilter and an acoustic device, comprising a substrate provided with a back cavity, and a film layer that is provided on the substrate and that is suspended on the back cavity; the film layer is provided with distribut...  
WO/2020/258154A1
Provided by the present application is a diaphragm, which comprises a diaphragm main body and a gluing part fixedly connected to the diaphragm main body, the diaphragm main body comprising a folding ring part, a fixing part formed extend...  
WO/2020/262850A1
A display apparatus includes a rear chassis configured to support a liquid crystal display panel and a backlight assembly; a vibration region formed as a part of the rear chassis adjacent to an edge of the rear chassis, the vibration reg...  
WO/2020/255607A1
This earphone includes: a ring-shaped housing having a hole therein; a diaphragm that has a first fixing section formed near the inner peripheral edge thereof and a second fixing section formed near the outer peripheral edge thereof and ...  
WO/2020/248717A1
Disclosed are a diaphragm for a sound generating device and the sound generating device. The diaphragm comprises at least one elastomer layer made of an ethylene-propylene-diene rubber; and the ethylene-propylene-diene rubber is polymeri...  
WO/2020/249457A1
The invention relates to a method for producing a MEMS transducer (1) for generating and/or detecting sound waves in the audible wavelength range and/or in the ultrasonic range, in which method at least one piezoelectric element (3a-3c) ...  
WO/2020/248718A1
Disclosed in the present invention are a vibration diaphragm of a sound producing device and a sound producing device. The vibration diaphragm comprises at least one elastomer layer, the elastomer layer being made of a hydrogenated butyr...  
WO/2020/247551A1
Systems and techniques are provided for a piezoelectric transducer. A base plate includes a first electrical contact and a second electrical contact. A transduction element is mounted directly on the base plate and electrically connected...  
WO/2020/238710A1
The present application relates to the technical field of bone conduction devices, and in particular, to a bone conduction vibrator and a bone conduction listening device. The bone conduction vibrator comprises a U-shaped iron, a magnet,...  
WO/2020/235677A1
Provided is a polyurethane resin solution that has excellent solution stability, and that has excellent thermal softening resistance, and small variations in physical properties such as modulus at temperatures ranging from low to high, a...  
WO/2020/234316A1
A loudspeaker for producing sound at bass frequencies including: a diaphragm; a frame, wherein a proximal end of the diaphragm is suspended from the frame by at least one proximal suspension element, wherein the at least one proximal sus...  
WO/2020/234317A1
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surf...  
WO/2020/228080A1
The present invention provides a loudspeaker, comprising a basket, a vibration system, and a magnetic circuit system. The basket comprises a bottom frame for accommodating the magnetic circuit system and a top cover fixed onto the magnet...  
WO/2020/225573A1
An electrostatic transducer, a diaphragm (2) therefor, and corresponding methods of manufacture are disclosed. The electrostatic transducer is preferably for use in a motor vehicle. A composite laminated diaphragm (2) is manufactured by ...  
WO/2020/226000A1
This signal processing device includes: a displacement detecting unit for detecting an amount of displacement of a video display panel which generates sound by being excited, on the basis of an input audio signal; a threshold setting uni...  
WO/2020/227622A1
An acoustic device with an open audio device structure that is configured to be carried on the head or upper torso of a user, and an electro-acoustic transducer carried by the open audio device structure and comprising a flat rectangular...  
WO/2020/224281A1
Disclosed are a device for producing sound by means of vibration and an electronic product. The device for producing sound by means of vibration comprises: a vibration assembly, wherein the vibration assembly comprises a housing and a fi...  
WO/2020/222523A1
An electronic device is provided. The electronic device includes a display, an actuator configured to output at least one of a sound and a vibration by using the display, and a processor configured to identify whether the display is acti...  
WO/2020/220704A1
Disclosed in the present invention are a diaphragm, a loudspeaker, and a loudspeaker module, wherein the diaphragm comprises a central part and an annular hanging part which is arranged around the central part and can generate elastic de...  
WO/2020/216196A1
A vibrating diaphragm for a miniature sound producing device and the miniature sound producing device. The vibrating diaphragm for the miniature sound producing device is made of a polyacrylate copolymer; the polyacrylate copolymer is pr...  
WO/2020/216170A1
Disclosed in the present invention are a diaphragm for use in a micro sound-generating apparatus, and a micro sound-generating apparatus. The diagram for use in a micro sound-generating apparatus is made using a polyacrylate copolymer, a...  
WO/2020/215243A1
The present invention relates to a new loudspeaker structure, comprising a housing, a coil group and a magnetic vibration diaphragm, wherein the coil group is fixed on the housing, and the coil group is provided with a connection end con...  
WO/2020/216171A1
Disclosed are a vibrating diaphragm for a miniature sound production device, and a miniature sound production device. The vibrating diaphragm for a miniature sound production device is made of a polyacrylate copolymer, wherein the polyac...  
WO/2020/216172A1
Disclosed is a miniature sound production device. The miniature sound production device comprises a device main body and a vibration diaphragm, the vibration diaphragm is provided in the device main body, and the vibration diaphragm is c...  
WO/2020/216179A1
Disclosed are a vibrating diaphragm for a miniature sound-producing device and a miniature sound-producing device. The vibrating diaphragm for the miniature sound-producing device is made of a polyacrylate copolymer. The polyacrylate cop...  
WO/2020/216168A1
A diaphragm for a miniature sound production device, and a miniature sound production device. The diaphragm for a miniature sound production device is made of a polyacrylate copolymer; a plasticizer is mixed in the polyacrylate copolymer...  
WO/2020/216195A1
Disclosed are a vibration diaphragm for a miniature sound production device and the miniature sound production device. The vibration diaphragm for the miniature sound production device is made of a polyacrylate copolymer, a reinforcing a...  
WO/2020/217872A1
This signal processing apparatus comprises: a first-panel displacement control unit to which a first sound signal is input; a second-panel displacement control unit to which a second sound signal is input; and a control unit that control...  
WO/2020/208070A1
A loudspeaker with a non-uniform surround, a membrane and a stiffening element preventing the surround from flexing the membrane during operation. A non-uniform surround does not have the same cross section, along the radius of the speak...  
WO/2020/208168A1
The invention relates to an actuator for exciting a component of a motor vehicle with vibrations, wherein the actuator comprises a housing, an electrical coil and a magnet that can move in a limited manner in the housing.  
WO/2020/209574A1
An electronic device is disclosed. According to an embodiment of the disclosure, the electronic device comprises a housing including a plate defining a first face of the electronic device and a side portion extending along an edge of the...  
WO/2020/207608A1
A linear motor magnet assembly (2) for use in a loudspeaker unit (1), with a fixed base actuator component (4) and a membrane actuating element (5), the membrane actuating element (5) having a linear excursion axis A. A first auxiliary m...  
WO/2020/194870A1
Disclosed is a transducer device that is configured to be able to extend the scope of uses thereof. This transducer device (1) is provided with: a transducer element (11); elastic bodies (12a, 12b) which clamp the transducer element (11)...  
WO/2020/190464A1
An audio system includes a speaker configured to emit sound. The speaker is contained in an enclosure, the enclosure forming a front cavity and a rear cavity that are on opposite sides of the speaker. The enclosure includes: at least one...  
WO/2020/190343A1
A panel audio loudspeaker includes a panel and an actuator rigidly coupled to a surface of the panel. The actuator includes: a magnet assembly that includes a permanent magnet arranged within a cup, wherein an air gap exists between side...  
WO/2020/189032A1
Provided is a speaker that can ensure sound pressure across a usable band from a low-frequency band to a high-frequency band without affecting transportability and portability even when a high-volume output is required. Provided is a spe...  
WO/2020/181890A1
The present invention relates to a double-sided miniature sound emitting device and an electronic product. The double-sided miniature sound emitting device comprises: a first vibration assembly, the first vibration assembly comprising a ...  
WO/2020/183247A1
An air pumping transducer (100) comprising: a transducer housing (13) having an air passage area on the upper surface thereof; a diaphragm (10) of which both sides are fixed to the inner side walls of the transducer housing (13), and of ...  
WO/2020/184022A1
Disclosed is a sound generator provided with a sound generating body (7), a base (2), a protection wall (22) and a vertical wall (23). The sound generating body has a diaphragm (72) and a driving part (73) for causing the diaphragm to vi...  
WO/2020/185998A1
Disclosed herein is an audio system having servo-controlled audio speaker and an amplifier. Interposed between the audio speaker and the amplifier is a feedback circuit configured to provide a feedback signal to the amplifier regarding e...  
WO/2020/182321A1
Membrane unit for a speaker device, the membrane unit (1) comprising a membrane (2) and at least two coils (3). The respective longitudinal axes of the at least two coils (3) are arranged in parallel along a main axis (A), a main surface...  
WO/2020/176148A1
A system includes a chassis. The system also includes a panel extending in a plane, the panel having a first edge and a second edge opposite the first edge. The system further includes an actuator coupled to the panel at a first location...  
WO/2020/176150A1
A panel audio loudspeaker includes a panel extending in a plane. The panel audio loudspeaker includes an actuator attached to the panel. The actuator includes a rigid frame attached to a surface of the panel, the rigid frame including a ...  
WO/2020/176153A1
A panel audio loudspeaker includes a panel extending in a plane. The loudspeaker also includes an actuator coupled to one side of the panel and configured to couple vibrations to the panel to cause the panel to emit audio waves. The actu...  
WO/2020/176285A1
Embodiments are disclosed of a speaker capable of producing multi-frequency-range sound using bar magnets, multiple diaphragms, and a shared planar voice coil. The planar voice coil is located between the bar magnets and translates a rec...  

Matches 1 - 50 out of 16,865