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Patent Searching and Data


Matches 301 - 350 out of 13,294

Document Document Title
WO/2021/255510A1
A flat panel loudspeaker comprising a housing in the form of a supporting frame, a rectangular sound emitting diaphragm, and a vibration exciter disposed in a space opposite the diaphragm. The vibration exciter is attached by one end to ...  
WO/2021/257513A1
A loudspeaker system includes a subwoofer. The subwoofer includes a housing having a plurality of walls which together define an acoustic cavity. The plurality of walls includes a front wall, a rear wall, a top wall, a bottom wall, and a...  
WO/2021/254713A1
A loudspeaker comprising: a mounting frame; an acoustic radiator; a drive unit. The drive unit includes: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a...  
WO/2021/248838A1
The present invention relates to a vibrating diaphragm for acoustoelectric inter-conversion, the vibrating diaphragm comprising a substrate layer made of graphene or multiple layers of graphene, and a metal plating layer, wherein the met...  
WO/2021/248625A1
The present invention relates to a vibrating diaphragm, which is applied to acoustoelectric interchange. The vibrating diaphragm comprises: a base material layer made of graphene or multilayer graphene; and a metal coating layer which is...  
WO/2021/251549A1
A display device includes a head including a display formed on a front surface thereof, a circumference having a pair of long sides and a pair of short sides, and one or more first speakers provided on a left short side and one or more s...  
WO/2021/243731A1
Disclosed is a waterproof earphone speaker. The waterproof earphone speaker comprises: a supporting assembly; a piece of tone tuning paper attached to the back face of the supporting assembly; a magnetic circuit assembly arranged on one ...  
WO/2021/246427A1
[Problem] To provide an electro-acoustic transducer diaphragm which maintains a high Young's modulus and realizes moderate internal loss. [Solution] An electro-acoustic transducer diaphragm 1 includes a substrate 10 which is constituted ...  
WO/2021/246212A1
An embodiment of the present technology relates to a speaker comprising a diaphragm. The diaphragm includes an upper-layer member and a reinforcing member. The upper-layer member has a first surface and a second surface on a side opposit...  
WO/2021/237808A1
The present utility model provides a piezoelectric MEMS microphone, comprising a substrate, a diaphragm mounted on the substrate, and a protective flat plate spaced apart from the diaphragm. Reinforcing ribs are provided on the protectiv...  
WO/2021/241985A1
An electronic device according to various embodiments of the present disclosure may comprise: a display; a bracket for supporting at least a part of the display; an acoustic actuator which is arranged under the display, and which include...  
WO/2021/238768A1
The present disclosure provides a display panel and manufacturing and control methods therefor, and a display device. The display panel comprises a display assembly and a plurality of sound-producing assemblies. The display assembly comp...  
WO/2021/232476A1
The present utility model relates to the technical field of acoustoelectric conversion, and provides a loudspeaker, comprising: a vibration system; a magnetic circuit system that is used for driving the vibration system to vibrate and pr...  
WO/2021/232458A1
The present utility model relates to the technical field of acoustoelectric conversion. Provided is a speaker, which comprises: a vibration system, a magnetic circuit system, and a basket. The vibration system comprises a diaphragm fixed...  
WO/2021/232475A1
The present utility model provides a loudspeaker. The loudspeaker comprises a basket, a magnetic circuit system, and a vibration system. The vibration system comprises a voice coil, a framework, a first diaphragm, a second diaphragm, and...  
WO/2021/230565A1
An electronic device is disclosed. The electronic device may comprise: a housing; a first printed circuit board disposed in the housing; a speaker unit disposed adjacent to the first printed circuit board, the speaker unit comprising a s...  
WO/2021/224155A1
The present invention relates to a loudspeaker comprising - a non-perforated membrane (10) having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction an...  
WO/2021/208473A1
A diaphragm and a sound production apparatus, the diaphragm comprising a foam rubber film layer made of foam rubber (1), said foam rubber being a foam prepared using a foaming method and having a foam pore size of 10μm to 300μm, a glas...  
WO/2021/208328A1
The present invention relates to the technical field of speaker cones. Disclosed are a three-dimensional multi-directional reinforced cone composed of multiple planar layers, and a manufacturing method therefor. The cone has high strengt...  
WO/2021/208474A1
A loudspeaker vibration diaphragm and a sound production device. The loudspeaker vibration diaphragm comprises a diaphragm layer prepared from a foaming rubber. The foaming rubber is a foaming body prepared from a rubber by a foaming met...  
WO/2021/210605A1
The present invention has: a magnetic circuit 2 that is fixed to a support member 11; and a voice coil 3 that is fixed to a vibration member 1 and can move relative to the magnetic circuit 2. The present invention also comprises a guide ...  
WO/2021/208470A1
A diaphragm and a sound producing device. The diaphragm comprises a foamed thermoplastic polyester elastomer film layer (1), wherein the foamed thermoplastic polyester elastomer is prepared by means of a foaming method by a copolymer com...  
WO/2021/208475A1
Disclosed are a vibrating diaphragm and a miniature sound production apparatus The vibrating diaphragm comprises a foamed rubber film layer (1) made of foamed rubber, wherein the foamed rubber is a foamed body prepared by using a foaming...  
WO/2021/208471A1
Disclosed are a vibrating diaphragm and a sound production device. The vibrating diaphragm comprises a foamed thermoplastic polyester elastomer film layer (1), wherein the foamed thermoplastic polyester elastomer is made from a copolymer...  
WO/2021/206212A1
A high-performance slim speaker according to the present invention is a speaker comprising a magnetic field unit and a vibration field unit. The magnetic field unit may comprise: a lower frame that covers the lower part of the speaker an...  
WO/2021/196699A1
A diaphragm, a sound generating device and an electronic device, the diaphragm comprising a first metal layer (10), a foam material layer (20) and a second metal layer (30); the foam material layer (20) is disposed on the first metal lay...  
WO/2021/201180A1
In a vibration plate 1 for an electro-acoustic converter configured by a paper substrate 10 having, as a main component, cellulose fibers 20, the total mass of dyed particles 21 included in a first surface-side region 12, which is a regi...  
WO/2021/192517A1
The present invention adjusts sound while protecting privacy. A vibration system (1) is characterized by including: an oscillator (11) that transmits, to an object to be adhered, vibrations based on sound signals, thereby causing sound t...  
WO/2021/189585A1
The present utility model provides a microelectromechanical systems microphone chip, comprising a substrate having a back cavity, and a back electrode plate and a diaphragm which are respectively supported and fixed on the substrate, mut...  
WO/2021/194339A1
This disclosure presents an electroacoustic transducer comprising a diaphragm with a central region and an outer region, and a dynamic coil mechanically coupled to the diaphragm, wherein the dynamic coil is arranged on or in and wound al...  
WO/2021/192516A1
The purpose of the present invention is to adjust sound while protecting privacy. A vibration system (1) is characterized by comprising: a vibrator (11) for causing an object to be affixed onto to emit sound by transmitting vibrations ba...  
WO/2021/190003A1
Disclosed are a diaphragm (100) and a speaker (200). The diaphragm (100) comprises at least one layer (10) of thermally reversible covalently crosslinked elastomer, which has the effect of improving the heat resistance and the chemical r...  
WO/2021/186276A1
The invention provides a diaphragm for a microspeaker and a manufacturing method thereof. The diaphragm is a single-layer diaphragm or a multi-layer diaphragm and comprises at least one layer of a chemically cross-linked thermoplastic po...  
WO/2021/186277A1
The invention provides a diaphragm for a microspeaker and a manufacturing method thereof. The diaphragm is a single-layer diaphragm or a multi-layer diaphragm and comprises at least one layer of a chemically cross-linked thermoplastic po...  
WO/2021/187086A1
Provided are a layered piezoelectric element and an electroacoustic transducer, with which high voltage characteristics are obtained and in which electrical contact points with an electrode layer are easily maintained. A piezoelectric fi...  
WO/2021/188962A1
Articles and methods are provided for miniature acoustic transducers having highly compliant suspension systems despite their small size. In various examples the suspension system is molded of a liquid silicone rubber (LSR) and is molded...  
WO/2021/185224A1
Disclosed in the present application are a speaker and an electronic device. The speaker comprises a diaphragm, a vibration source, and a frame. The diaphragm comprises a diaphragm body and multiple add-ons; the diaphragm body comprises ...  
WO/2021/183293A1
An acoustic liquid transfer system comprises: a processor; a source holding component configured to hold a source microplate; a destination holding component configured to hold a destination microplate; an acoustic transducer configured ...  
WO/2021/183139A1
A panel audio loudspeaker includes a panel and an actuator attached to a surface of the panel and configured to cause vibration of the panel. The actuator comprises a magnetic coil in thermal communication with the panel. The panel audio...  
WO/2021/182351A1
This acoustic device 3 includes a piezoelectric element and a housing 30. The housing 30 has a body part 31 and a rib part 35. The body part 31 includes a vibration part 32 and a plurality of support parts 33. The rib part 35 is connecte...  
WO/2021/174568A1
The present invention provides a loudspeaker capable of increasing an effective vibration area. The loudspeaker comprises a housing, a vibration system and a magnetic circuit system. The vibration system comprises a vibration diaphragm, ...  
WO/2021/174569A1
The present invention provides a loudspeaker capable of increasing the effective vibration area. The loudspeaker comprises a housing, a vibration system and a magnetic circuit system. The vibration system comprises vibrating diaphragms, ...  
WO/2021/174578A1
The present invention provides a sound production device with two sound production surfaces capable of independently vibrating for sound production. The sound production device comprises a frame, a vibration system and a magnetic circuit...  
WO/2021/172934A1
Disclosed are a microphone device and a method of detecting floor noise. A microphone device according to an embodiment of the present invention comprises: a high-pitched sound contact microphone which receives sound from a medium within...  
WO/2021/173688A1
A microphone assembly includes a housing defining an acoustic cavity having a sound inlet for transmitting a sound in to the acoustic cavity. A micro-electro-mechanical (MEMS) microphone is located at least partially within the housing a...  
WO/2021/171231A1
Diaphragm (1) for a ribbon magnetostat (2) of a loudspeaker (3) for producing acoustic sound waves for reproducing speech and music, having the features of: the diaphragm (1) consists of a laminate having at least three layers, wherein a...  
WO/2021/172930A1
An exciter driver is disclosed. The exciter driver according to an embodiment of the present invention comprises: a diaphragm, of which one surface is in contact with the medium to transfer vibration; a magnet for transferring the vibrat...  
WO/2021/164804A1
Especially in the automotive and aviation sectors, the integration of existing acoustic transducers into the remaining surfaces of claddings in doors, sides, ceilings and panels (instrument panels) etc. is a major problem, since these ar...  
WO/2021/167620A1
A capacitive transducer or microphone includes a first substrate of one or more layers and which includes a first surface, a first cavity in the first surface, and a mesa diaphragm that spans the first cavity. The capacitive transducer o...  
WO/2021/153284A1
A speaker system (100) is provided with: an annular oscillator (101); a first bobbin (102) which has a cylindrical shape and which is physically connected to the oscillator (101); a first voice coil (103) which is wound around the first ...  

Matches 301 - 350 out of 13,294