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WO/2021/109096A1 |
Provided is a sound production device, comprising a basket, and a vibration system and a magnetic circuit system for driving the vibration system to vibrate and sound which are respectively fixed on the basket. The vibration system compr...
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WO/2021/104006A1 |
Disclosed is an electroacoustic transducer comprising a central magnet, two first side magnets, two second side magnets, a voice coil, a voice diaphragm and two flexible circuit boards. The two first side magnets are symmetrically arrang...
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WO/2021/106628A1 |
An acoustic vibration plate 10 is provided with a metal foil 11 and a thermoplastic resin film 12 laminated on the metal foil 11. The ratio of a linear coefficient of expansion CTEZ in the thickness direction to a linear coefficient of e...
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WO/2021/102056A1 |
An acoustic transducer that includes a housing, a diaphragm, a spider, a motor, and a drop ring. The motor includes a backplate, a frontplate, a magnet, and a voice coil. The drop ring connects the diaphragm to the spider at a circumfere...
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WO/2021/100428A1 |
The present invention addresses the problem of providing an electroacoustic converter having a diaphragm and a piezoelectric element, the electroacoustic converter making it possible to replace the piezoelectric element and prevent degra...
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WO/2021/101897A1 |
An electro-acoustic transducer, comprising a supporting frame, a magnet assembly with an annular yoke surrounding a magnet a diaphragm attached to the front edge of the supporting frame, a voice coil suspended by the diaphragm in a gap f...
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WO/2021/100958A1 |
According to the present invention, disclosed is a high-performance slim speaker, wherein a plate and an external magnetic body are divided into n segments (where n is a natural number of 2 or more). A support part is supported by the ou...
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WO/2021/098625A1 |
Disclosed in the present invention are a sound generating device unit and electronic equipment. The sound generating device unit comprises a housing, a vibration system and a pad assembly, and the housing is made of a first material; the...
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WO/2021/095187A1 |
Provided is a speaker device comprising a vibration device and a diaphragm, wherein the speaker device is excellent in acoustic characteristic and in outward appearance and vibration generated from the vibration device can be efficiently...
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WO/2021/093927A1 |
The present invention relates to a waterproof speaker (100) comprising a frame structure comprising a support element (107), a moveable membrane comprising a waterproof suspension element (110) and a waterproof piston element (108), wher...
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WO/2021/095758A1 |
Provided is an acoustic diaphragm having the characteristics required for a vibration part and an edge part. The acoustic diaphragm comprises a vibration part 11 and an edge part 12 located at the outer periphery of the vibration part, b...
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WO/2021/093116A1 |
Disclosed is a composite vibrating diaphragm for a sound production device. In the composite vibrating diaphragm, a rubber layer and an adhesive diaphragm layer are compounded to form a composite structure, such that the temperature resi...
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WO/2021/093114A1 |
Provided are a vibrating diaphragm and a sound production device, the vibrating diaphragm comprising a central part, wherein a surface of the central part is provided with a first connection area and a second connection area, the first c...
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WO/2021/093117A1 |
The present invention provides a diaphragm. The diaphragm comprises at least one layer of amorphous polyether ether ketone material, and comprises a central portion, a bent ring portion, and a fixed portion, and the crystallized diaphrag...
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WO/2021/088241A1 |
Disclosed is a dustproof and anti-air-blowing micro-electro-mechanical microphone chip, comprising a substrate, and a diaphragm and a back plate sequentially arranged on the upper side of the substrate. Air release valves are arranged on...
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WO/2021/088225A1 |
Disclosed are an acoustic device and electronic apparatus. The acoustic device comprises a sound production unit and a first housing. The sound production unit is mounted on the first housing to form a sound production assembly. A first ...
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WO/2021/091233A1 |
Provided is a built-in speaker module. The built-in speaker module, which has a first floor surface spaced apart from the ground and a second floor surface installed above the first floor surface, comprises: a speaker installed on the se...
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WO/2021/090983A1 |
The present invention relates to a foldable image display device which allows screen display and sound reproduction in all directions, regardless of folded and unfolded states, by using a flexible display, and amplifies the production of...
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WO/2021/091243A1 |
A microphone according to the present invention comprises: a case in which a recess having an open upper portion is formed; a diaphragm part that is located on the recess and is formed to have elasticity so as to be variably displaced by...
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WO/2021/085476A1 |
The present invention pertains to a sound emission device provided with: a speaker unit; and an enclosure of the speaker unit, which has an opening unit that forms a Helmholtz resonator. The resonance frequency Fr of the Helmholtz resona...
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WO/2021/082250A1 |
Disclosed are a diaphragm for a sound producing device and a sound producing device. The diaphragm comprises an isoprene rubber film layer. The isoprene rubber film layer is a film layer prepared by crosslinking an isoprene polymer. The ...
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WO/2021/082244A1 |
Disclosed are a vibration diaphragm for a miniature sound production device, and a miniature sound production device. The vibration diaphragm is made of a natural rubber comprising a polyisoprene. The mass fraction of the polyisoprene in...
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WO/2021/082246A1 |
Disclosed are a vibration diaphragm for a miniature sound production device, and a miniature sound production device. The vibration diaphragm is made of a styrene-butadiene rubber. The styrene-butadiene rubber is made by crosslinking and...
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WO/2021/082254A1 |
A diaphragm of a sound production device and a sound production device. The diaphragm comprises at least one elastomer layer. The elastomer layer is made of ethylene-vinyl acetate rubber. The ethylene-vinyl acetate rubber is formed by co...
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WO/2021/082239A1 |
Disclosed are a vibration diaphragm for a miniature sound-producing device and a miniature sound-producing device. The vibration diaphragm is made of a fluororubber. The fluororubber includes fluorine molecules in the main chain and/or s...
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WO/2021/082253A1 |
Disclosed are a vibration diaphragm for a sound-producing device and a sound-producing device. The vibration diaphragm comprises at least one elastomer layer, wherein the elastomer layer is made of a butadiene rubber; and the butadiene r...
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WO/2021/081589A1 |
A contact sensor for monitoring breathing of a subject, comprising: a microphone housing defining a first acoustic cavity, a MEMS microphone disposed within the first acoustic cavity; a second acoustic cavity separated from the first aco...
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WO/2021/082248A1 |
Disclosed in the present invention are a diaphragm for a miniature sound generating device, and a miniature sound generating device. The diaphragm comprises at least one elastomer layer, the elastomer layer being made of chloroprene rubb...
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WO/2021/084393A1 |
The present invention provides an acrylic damping adhesive. The acrylic damping adhesive comprises a crosslinked structure of a carboxy-containing acrylic polymer with a glass transition temperature less than or equal to -20 °C °C and ...
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WO/2021/082255A1 |
Disclosed are a vibration diaphragm for a sound-producing device and a sound-producing device. The vibration diaphragm comprises at least one elastomer layer, wherein the elastomer layer is made of a polysulfide rubber; the polysulfide r...
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WO/2021/082245A1 |
Disclosed in the present invention are a vibrating diaphragm for a miniature sound production device and the miniature sound production device. The vibrating diaphragm is made of nitrile rubber; the nitrile rubber is prepared by cross-li...
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WO/2021/082247A1 |
Disclosed in the present invention are a vibrating diaphragm of a sound generation device and a sound generation device. The vibrating diaphragm comprises a fluorosilicone rubber film layer, the fluorosilicone rubber comprises a linear p...
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WO/2021/082033A1 |
Provided are a sound actuator for a screen and an electronic apparatus. The present sound actuator for a screen comprises a first magnetic circuit system, an electromagnetic drive system, and a second magnetic circuit system, mounted in ...
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WO/2021/082249A1 |
Disclosed are a vibration diaphragm for a micro sound-producing device and a micro sound-producing device. The vibration diaphragm comprises at least one elastomer layer, wherein the elastomer layer is made of a modified polyethylene rub...
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WO/2021/079769A1 |
A speaker according to an embodiment of the present invention is provided with: a diaphragm; an actuator mechanism; a first link mechanism; and a second link mechanism. The actuator mechanism has an actuator, and generates first vibratio...
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WO/2021/075815A1 |
A flat panel type vibration driver according to an embodiment of the present invention comprises: a base frame; a vibration unit arranged inside the base frame and vibrating vertically by a magnetic circuit; and a suspension connecting t...
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WO/2021/063110A1 |
The present invention provides an ultrathin conductive vibration diaphragm, comprising a conductive composite layer. The conductive composite layer comprises an outer conductive portion, an inner copper foil portion, a connection portion...
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WO/2021/062955A1 |
Provided in the present invention is a sound-producing apparatus, comprising a vibration assembly and a magnetic path assembly, the vibration assembly comprising a diaphragm, and the diaphragm vibrating to produce sound waves; a middle a...
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WO/2021/056900A1 |
Disclosed is a sound production device, comprising a housing, and a vibration system and a magnetic circuit system installed on the housing, wherein the vibration system comprises a diaphragm assembly and a voice coil assembly fixedly co...
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WO/2021/058006A1 |
Disclosed in the present invention are a conductive film for a sound production device and the sound production device. The conductive film comprises a conductive layer and base material layers located at two sides of the conductive laye...
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WO/2021/060214A1 |
The present invention provides a vibration device using a glass vibration plate that forms uniform acoustic pressure distribution and can suppress directivity. This vibration device (100) comprises: a glass vibration plate (11); oscillat...
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WO/2021/058008A1 |
Disclosed are a conductive film for a sound production apparatus, and a sound production apparatus. The conductive film comprises a conductive layer, and a first substrate layer and a second substrate layer located on two sides of the co...
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WO/2021/054295A1 |
[Problem] To provide a higher performance and higher quality curved diaphragm speaker system that has sufficient performance for both hearing-impaired and hearing people. [Solution] A speaker unit 10 according to the present invention is...
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WO/2021/054707A1 |
A moving coil for a flat panel speaker, according to an embodiment of the present invention, comprises a PCB coil and a metal coil. A single or a plurality of PCB coil plates are formed in a single or multiple layers. The PCB coil is pri...
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WO/2021/047959A1 |
A microstructure (1) for use in a micro electro-mechanical device comprises a substrate (2) having a top surface (3) and a rear surface (4) and a thin-film structure (5) arranged at the top surface (3) of the substrate (2). The thin-film...
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WO/2021/049165A1 |
The present invention comprises a plurality of exciters that output sound in a prescribed frequency range, and a plurality of piezoelectric speakers that output sound in a higher frequency range than the exciters. The plurality of excite...
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WO/2021/045324A1 |
A sound output device according to the present disclosure comprises: a speaker for generating sound; a guide tube which is formed in a hollow tube shape, and which receives the sound generated by the speaker through one end thereof and o...
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WO/2021/040520A1 |
The invention relates to a speaker-element for a speaker, comprising two substantially mutually opposing spaced apart membrane planes, wherein each membrane plane comprises at least one electromagnetic wire arranged for creating a magnet...
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WO/2021/038552A1 |
Techniques described herein generally relate to generating an audio signal with a speaker. In some examples, a speaker device is described that includes a membrane and a shutter. The membrane can be configured to oscillate along a first ...
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WO/2021/031495A1 |
Disclosed in the present invention are a conductive membrane for use in a sound-producing apparatus and a sound-producing apparatus, comprising a conductive layer and a first base material layer and a second base material layer attached ...
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