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Patent Searching and Data


Matches 1 - 50 out of 16,969

Document Document Title
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 ...  
WO/2020/086852A9
An improved loudspeaker system that produces an improved audio quality for stereophonic sound, which can be described as 3D audio. In one embodiment, the improved loudspeaker utilizes at least three stacks of electrostatic transducer car...  
WO/2021/031496A1
Disclosed are a conductive film for a sound producing apparatus and a sound producing apparatus. The conductive film comprises a conductive layer and substrate layers bonded to two surfaces of the conductive layer, the substrate layers c...  
WO/2021/033376A1
Provided is a piezoelectric vibration plate 11 comprising: an electrically conductive base part 100 having a central section 110 and a peripheral section 120 surrounding the central section 110; and a piezoelectric material part 150 prov...  
WO/2021/033226A1
[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 co...  
WO/2021/035107A1
Various implementations include miniature loudspeaker drivers. In some aspects, an electro-acoustic driver includes: a cone having a surface area configured to radiate acoustic energy; a suspension coupled to the cone; and a support stru...  
WO/2021/034127A1
An electronic device is provided. The electronic device includes a multi-channel speaker system, and an electronic device according to an embodiment of the disclosure includes a housing, a display which is attached to the housing to be s...  
WO/2021/033744A1
A speaker system 1 is provided with: a plurality of boxes 3; a plurality of vibration output devices 5 which output vibrations using a vibrating body 17 for converting an electric signal into vibrations; and a voice transmission unit 7 w...  
WO/2021/026951A1
Disclosed is a voice coil and a diaphragm assembly, comprising a voice coil and a diaphragm. The diaphragm is formed by a lightweight rigid outer layer, a lightweight rigid interlayer, and a lightweight rigid inner layer being composited...  
WO/2021/025282A1
In various embodiments, a speaker module includes: an air adsorption member, and an electronic device includes the speaker module. The speaker module may include a yoke defining one surface of the speaker module, a magnet attached to the...  
WO/2021/025283A1
In various embodiments, an electronic device includes: a diaphragm, a speaker module including a speaker configured to output a sound through a vibration of the diaphragm, and a housing accommodating the diaphragm and the speaker module ...  
WO/2021/025183A1
The present invention relates to a display apparatus which outputs sound by vibrating a back cover, the display apparatus comprising: a display panel; a back cover disposed on the back of the display panel; and a speaker apparatus provid...  
WO/2021/019195A1
An actuator module includes a base plate extending in a plane, a voice coil connected to the base plate, and a magnet assembly that includes a back side facing the base plate and a front side facing away from the base plate. The magnet a...  
WO/2021/020157A1
The present technology relates to a display device that makes it possible to certainly suppress the influence of heat generation. Provided is a display device equipped with: a signal processing unit that processes a video signal and an a...  
WO/2021/021936A1
A loudspeaker transducer diaphragm or cone (e.g., 201, 301 or 401) is configured with arcuate protrusions that project distally from the main forward or distal surface 230 to provide stiffening and a break-up of resonant vibration modes ...  
WO/2021/020158A1
The present technology relates to a display device that can more reliably suppress the influence of heat generation. Provided is a display device comprising: a signal processing unit that processes an image signal and an audio signal; a ...  
WO/2021/018469A1
An artificial cochlea device (100, 300) for processing audio signals by electro-mechanical amplitude changes includes a micro-electro- mechanical system, MEMS, microphone (118) comprising a membrane (102), and an electro-mechanical feedb...  
WO/2021/014933A1
The present technology relates to a signal processing device and method, and a program with which it is possible to reproduce high-definition sound with a small processing load. This signal processing device is provided with: a demultipl...  
WO/2021/016458A1
A MEMS AE transducer system is provided that takes advantage of the low power consumption and lightweight characteristics of MEMS AE transducers, while also achieving higher sensing sensitivity. To address the problem of low sensitivity ...  
WO/2021/014112A1
A method for producing an audio signal from a panel audio loudspeaker in a mobile device includes receiving information about a status of the mobile device from one or more sensors of the mobile device. The method further includes drivin...  

Matches 1 - 50 out of 16,969