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WO/2019/213388A1 |
Micromachined ultrasonic transducers having pressure ports are described. The micromachined ultrasonic transducers may comprise flexible membranes configured to vibrate over a cavity. The cavity may be sealed, in some instances by the me...
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WO/2019/209976A1 |
An acoustic device including a motor disposed in a housing having a non- porous elastomeric membrane disposed across an acoustic path defined by a sound port of the housing is disclosed. The motor may be embodied as MEMS transducer confi...
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WO/2019/142547A1 |
The purpose of the present invention is to provide: an acoustic lens which is for propagating a sound wave having a wavelength λ of 100 μm or less and can exhibit excellent acoustic characteristics depending on the wavelength λ of the...
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WO/2019/135204A1 |
Some preferred embodiments include a microphone system for receiving sound waves. A radiation plate is clamped to a back plate resulting in a hermetically sealed regular convex polygon-, ellipse-, or regular convex elliptic polygon- shap...
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WO/2019/129924A1 |
An apparatus (1) and electronic device (23), the apparatus comprising: a microphone arrangement (3); and a sensing arrangement (5) comprising two dimensional materia (17); wherein the microphone arrangement (3) is configured to transduce...
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WO/2019/119941A1 |
Disclosed are a vibrating diaphragm for a sound generating device, a method for preparing the vibrating diaphragm, and a sound generating device. The vibrating diaphragm comprises at least one modified thermoplastic polyester elastomer l...
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WO/2019/107558A1 |
Provided is a transducer that can be manufactured without using volatile adhesives or organic solvents, and in which electrical connections between electrode sheets and lead wires can be secured via a procedure other than soldering or we...
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WO/2019/097495A1 |
Winding a wire at a first location such that the wire is bunched at the first location, extending the wire from the first location to a second location, winding the wire at the second location such that the wire is bunched at the second ...
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WO/2019/088145A1 |
A resin composition for acoustic matching layers, which contains metal particles and a binder that contains a resin, and wherein the degree of monodispersity of the metal particles as calculated by formula (1) is 40-80%; an acoustic matc...
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WO/2019/088146A1 |
A resin composition for acoustic matching layers, a cured product using same, an acoustic matching sheet, an acoustic wave probe, an acoustic wave measurement device, and a production method for acoustic wave probes, said resin compositi...
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WO/2019/088148A1 |
Provided is a resin composition for an acoustic matching layer, said composition containing: a binding material that includes a resin; and surface-treated metal particles. Also provided, by using said composition, are a hardened product,...
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WO/2019/087834A1 |
The present invention addresses the problem of providing a speaker vibration plate which has a large rigidity and a sufficient vibration attenuation rate. The speaker vibration plate of the present invention is provided with a resin matr...
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WO/2019/073948A1 |
A speaker (100) provided with: a magnetic circuit (110); a voice coil body (120); a diaphragm (130) attached to the voice coil body (120); a housing (140) which accommodates the magnetic circuit (110) and the voice coil body (120), and t...
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WO/2019/074001A1 |
The present invention provides: a porous PI film which can be used suitably in a speaker diaphragm and has excellent heat resistance, lightweight and excellent acoustic quality properties; and a method for producing the porous PI film. T...
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WO/2019/069289A1 |
An electroacoustic transducer may include a cathode (12) having a plurality of discharge elements (18) assembled into one or more axisymmetric arrays (20) and an anode (14) having a plurality of discharge elements (18) assembled into one...
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WO/2019/062858A1 |
Disclosed in the embodiments of the present application are a receiver coil, a winding process therefor, and a fabrication method for a coil body in the coil. The receiver coil comprises: the coil body and a conductor line, wherein the c...
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WO/2019/065960A1 |
Provided is a transducer that can be manufactured without using a volatile adhesive or an organic solvent. A transducer 1 is provided with: a first electrode sheet 21 provided with a plurality of first through-holes 21a; a dielectric lay...
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WO/2019/060021A1 |
A MEMS microphone includes a substrate, a lower membrane supported on the substrate, an upper membrane suspended above the lower membrane, a first electrode supported on the lower membrane, and a second electrode supported on the upper m...
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WO/2019/055437A1 |
A microphone includes a substrate defining an embedded cavity between a first surface of the substrate and an opposing second surface of the substrate, the first surface defining a first opening into the embedded cavity, a distance betwe...
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WO/2019/014510A3 |
An acoustic receiver includes a first receiver subassembly having bottom housing plate with at least a portion of a motor fastened thereto, and a second receiver subassembly having a closed-ended housing wall with at least one open end t...
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WO/2019/047749A1 |
Disclosed are an electroacoustic device, a manufacturing method therefor, and a mobile terminal. The electroacoustic device is provided with an outer frame body, the outer frame body is provided with a sealed cavity and a jack in communi...
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WO/2019/047082A1 |
Provided is a method for forming an aluminum surface selenium treated nano coating for improving low frequency extension of an earphone. The method comprises: immersing an aluminum film in a water mixed solution of glucose and 2-chloro-4...
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WO/2019/036900A1 |
A method for coating a membrane on the surface of a speaker diaphragm, at least comprising the following steps: providing a speaker diaphragm (1), arranging a coating membrane on the surface of the speaker diaphragm (1), the coating memb...
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WO/2019/035767A1 |
This invention provides a speaker cabinet, and the aforementioned speaker cabinet includes a containment space within; multiple reinforcing rib connectors pass through the space between the two faces on the inside of the aforementioned c...
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WO/2019/022893A1 |
A method of forming a device having a compliant member includes applying heat to a thermoplastic elastomer to maintain the thermoplastic elastomer in a softened state. The thermoplastic elastomer is extruded in the softened state as a fi...
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WO/2019/023240A1 |
Circumferential mode vibrations, in a diaphragm of an acoustic transducer, are damped by defining at least one elongated opening extending radially along a portion of a length from the central area to the outer perimeter being covered by...
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WO/2018/215669A3 |
A micromechanical acoustic transducer comprises, according to a first aspect, a first bender transducer with a free end and a second bender transducer with a free end which are situated in a common plane, wherein the free end of the firs...
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WO/2019/014510A2 |
An acoustic receiver includes a first receiver subassembly having bottom housing plate with at least a portion of a motor fastened thereto, and a second receiver subassembly having a closed-ended housing wall with at least one open end t...
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WO/2019/011748A1 |
A MEMS sensor (1) with a media access opening (MO) in its carrier board (CB) is disclosed having an integrally filter mesh (MSH) closing the media access opening. The mesh may be applied in unstructured form over the whole surface of the...
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WO/2019/011720A1 |
A MEMS microphone is provided comprising a carrier board and a MEMS chip mounted thereon over a sound opening. A filter chip comprises a bulk material with an aperture covered and closed by a mesh. The mesh comprises a layer of the filte...
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WO/2019/004103A1 |
This method for producing a hollow structure comprises: a step for forming a sacrificial layer on a first film; a step for forming a second film on the sacrificial layer; a step for forming an etching opening that penetrates through at l...
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WO/2019/004933A1 |
Various embodiments may provide an acoustic device. The acoustic device may include a substrate, an electrically conductive first membrane, a first spacer holding the first membrane to form a first acoustic chamber between the substrate ...
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WO/2019/001930A1 |
The invention relates to a sound transducer arrangement (1) for generating and/or detecting sound waves in the audible wavelength spectrum, having an acoustic unit (2), which comprises an oscillatable diaphragm (3), having an MEMS unit (...
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WO/2019/000540A1 |
Disclosed are a material assembly and a forming method and an assembly method thereof, and a speaker device module. The material assembly comprises: a base membrane having a through hole; a double-sided adhesive tape adhered to the base ...
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WO/2018/225415A1 |
Proposed is a method for producing a film substrate, by which a film substrate is produced by forming a film on a substrate, said film being capable of operating at high temperatures, by mixing a powder of a ferroelectric body and a sol-...
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WO/2018/223389A1 |
A MEMS microphone, a manufacturing method thereof and an electronic apparatus are disclosed. The MEMS microphone comprises: a MEMS microphone device including a MEMS microphone chip and a mesh membrane (402) monolithically integrated wit...
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WO/2018/226869A1 |
A bobbin for an electro- acoustic driver includes an outer surface, a substantially planar surface at an end of the bobbin, and a bobbin axis that is substantially coaxial with a housing axis. The bobbin is disposable inside a housing an...
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WO/2018/223752A1 |
Provided are a composite electrode, an acoustic sensor using the same, and a manufacturing method. The composite electrode comprises: an electrically conductive layer; and a semiconductor polymer layer having a three-dimensional reticula...
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WO/2018/220061A1 |
The invention relates to an electrodynamic loudspeaker having: - a frame (17), - an assembly (23) that is movable in translation with respect to the frame along an axis (D) of the loudspeaker about an equilibrium position that is taken u...
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WO/2018/215669A2 |
A micromechanical acoustic transducer comprises, according to a first aspect, a first bender transducer with a free end and a second bender transducer with a free end which are situated in a common plane, wherein the free end of the firs...
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WO/2018/178772A3 |
Some preferred embodiments include a microphone system for receiving sound waves, the microphone including a back plate, a radiation plate, first and second electrodes, first and second insulator layers, a power source and a microphone c...
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WO/2018/208565A1 |
Systems and methods of forming transducer diaphragms are disclosed herein. In one embodiment, a method of producing a transducer diaphragm includes receiving a workpiece between a first forming tool and a second forming tool. The workpie...
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WO/2018/197838A1 |
The application describes MEMS devices and associated methods of fabrication. The MEMS devices comprise a filter configured and arranged to inhibit the entry of particles into at least a region of the interior of the substrate cavity fro...
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WO/2018/197836A1 |
The present disclosure describes techniques for altering the epoxy wettability of a surface of a MEMS device. Particularly applicable to flip-chip bonding arrangements in which a top surface of a MEMS device is adhered to a package subst...
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WO/2018/199554A1 |
The present invention relates to a microphone having a rigid backplate structure and a method for manufacturing the same. The microphone comprises a membrane comprising a driving electrode and a backplate comprising a fixed electrode. Th...
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WO/2018/188195A1 |
Disclosed is a method for an acoustic device. The method comprises: using a shell injection mold to produce an annular shell of an acoustic device by injection molding, a runner structure formed by injection molding being connected to th...
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WO/2018/182868A1 |
A tool comprises an expanding collet constructed and arranged for positioning at an interior of a bobbin having an inner diameter, the expanding collet including a hole that extends through an interior in a longitudinal direction of the ...
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WO/2018/182867A1 |
A tool for arranging voice coil leadouts in a microspeaker comprises a mandrel having a top surface on which a bobbin and voice coil are positioned during formation of helicoidal leadout regions of the voice coil, a bobbin alignment feat...
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WO/2018/161659A1 |
A radial magnetic circuit assembly device and an assembling method. The radial magnetic circuit assembly device comprises a magnetic center column (40), a lower collar (50), and an upper collar (60). The magnetic center column (40) compr...
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WO/2018/164047A1 |
Provided is a piezoelectric member which is improved in terms of adhesion of a metal electrode to a piezoelectric element. A piezoelectric member 102 is provided with: a piezoelectric element 21; and a pair of electrodes 41, 42 which are...
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