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WO/2012/017504 |
A microphone has a first electrode, and a second electrode which is formed so as to face the first electrode across a hollow portion, wherein the first electrode is a parallel-plate-type provided with an electret layer. The manufacturing...
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WO/2012/008460 |
An electrostatic loudspeaker comprising a first electrode, a second electrode which faces the first electrode, and a vibrating body which is arranged between the first electrode and the second electrode and is composed of an insulating f...
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WO/2012/006212 |
A balanced armature motor assembly has a circuit board mounted to a bobbin. A first end of a wire coil is secured to a first terminal on the circuit board and passes through a first cutout of the bobbin. A second end of the wire coil is ...
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WO/2012/006213 |
A transducer and method of forming a transducer is disclosed. The method comprises locating a feed wire for forming a drive pin on a reed surface, welding a first end of the feed wire to the reed, cutting the feed wire to form a drive pi...
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WO/2011/158429 |
Disclosed is a converter module, which has a converter and a rectangular semiconductor substrate on a rectangular substrate, and which has a small size and low cost. The converter module is provided with: the substrate (2) having a subst...
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WO/2011/148618 |
An ultrasonic probe, which can dampen ultrasonic waves outputted to the back-face side thereof, while restraining the thickness of a packing layer, is provided with: a piezoelectric oscillator (1) to be used for transmitting/receiving ul...
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WO/2011/148740 |
Disclosed is an acoustic sensor (1), wherein a conductive vibrating membrane (14) and an upper fixed electrode plate (5) are arranged on the upper face of a silicon substrate (11) so that an air gap (22) is provided between the conductiv...
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WO/2011/144438 |
A loudspeaker having a magnet system and a method of assembling the magnet system is disclosed. The magnet systern comprises a magnet that has a first surface, a second surface and an aperture; an armature core that has a first surface, ...
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WO/2011/132099 |
A microphone is disclosed in which a housing is formed by a cap (13) sealed to a substrate (11). A MEMS die (10) is mounted on the substrate (11), the MEMS die (10) incorporating a membrane (12). The membrane (12) has a first surface fac...
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WO/2011/132531 |
Disclosed is an ultrasound probe wherein the bending of a CMUT due to thermal stress produced at the joint between a backing layer and the CMUT is minimized, thereby improving the durability of the bond between the CMUT and the backing l...
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WO/2011/122017 |
Disclosed is a speaker manufacturing method that includes a step for assembling a magnetic circuit and a frame. The step for assembling the magnetic circuit and the frame ensures planarity of a plate and frame damper adhesive portion by ...
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WO/2011/122673 |
Disclosed is a method for manufacturing an acoustic diaphragm provided with: a diaphragm section which vibrates upon receiving an electrical signal or a sound wave; and an edge section which is arranged at the outer periphery of the diap...
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WO/2011/111042 |
Actuator apparatus for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a sampling clock, the apparatus comprising ...
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WO/2011/103720 |
A semiconductor package and a method for manufacturing the same are provided. The semiconductor package includes: a base (130) having a cavity; an interposer (120) coupled to the base (130) and at least partially over the cavity such tha...
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WO/2011/104624 |
A diaphragm for a loudspeaker including a plurality of masses, each mass being substantially the same radial distance from the centre of the diaphragm, the plurality of masses being divided into two arrays, each array including one or mo...
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WO/2011/104784 |
Disclosed is a converter module (5) provided with a substrate (1), a converter (3) which is held on the substrate (1) and which converts external vibration into electrical signals, and an electrical component (4) which is held on the sub...
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WO/2011/102104 |
Disclosed is a capacitor microphone comprising a vibrating membrane sub assembly, a spacer, and a ringed member that have been cut out from a layered assembly sheet as a layered unit, wherein the capacitor microphone prevents the sensiti...
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WO/2011/098731 |
The invention relates to an acoustic electrodynamic transducer assembly comprising a fixed part consisting of a bowl (5) rigidly attached to a magnetic motor (M) comprising at least one permanent magnet (1) capable of creating a magnetic...
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WO/2011/093008 |
A diaphragm is constituted by means of a papermaking process and contains a first fibrous material with increased freeness and a second fibrous material with carbonized bamboo fibers scaled down to a microfibril state. By means of such a...
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WO/2011/089345 |
Said electrodynamic speaker structure having MEMS technology, comprising a stator-forming means (2), diaphragm-forming means (3), and resiliently shape-changing means (4) for connecting all of said means, is characterized in that the sta...
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WO/2011/064934 |
Disclosed are a sound damping component for ultrasonic probe, an ultrasonic probe, and an ultrasonic probe manufacturing method. Multiple through-holes (14A) penetrating a sound dampening body (13a) are formed with a drill, and conductiv...
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WO/2011/062325 |
The present invention relates to a MEMS microphone package having improved acoustic properties, and to a packaging method, which involve adding a vent path in the packaging process to improve equilibrium between internal and external air...
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WO/2011/059868 |
A MEMS microphone has 1) a backplate with a backplate interior surface and a plurality of through-holes, and 2) a diaphragm spaced from the backplate. The diaphragm is movably coupled with the backplate to form a variable capacitor. At l...
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WO/2011/049319 |
The present invention relates to a method and apparatus for manufacturing a passive component for an acoustic transducer, in which ultrasonic waves are generated when a metal oxide filler is mixed with an epoxy resin, a hardener is added...
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WO/2011/049276 |
The present invention relates to a fabrication method of a silicon condenser microphone having an additional back chamber. The method of the present invention comprises: applying an adhesive to a substrate and then mounting a chamber cas...
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WO/2011/049319 |
The present invention relates to a method and apparatus for manufacturing a passive component for an acoustic transducer, in which ultrasonic waves are generated when a metal oxide filler is mixed with an epoxy resin, a hardener is added...
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WO/2011/038428 |
The invention relates to a method for producing loudspeaker housings and loudspeaker housing parts, characterized in that the loudspeaker housing parts are produced in a vacuum casting process or in a pressure gelation process (APG) pref...
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WO/2011/024396 |
Occurrence of variations in sensitivity characteristics between capacitor microphones having metal cases is prevented even when a large number of upper units including vibrating film subassemblies, spacers, and ring-shaped members are pr...
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WO/2011/021341 |
A microphone (100) is provided with: a vibrating membrane (2), which has a first surface and a second surface that is on the reverse side of the first surface, and which has a first vibrating region (6) and a second vibrating region (7) ...
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WO/2011/013294 |
Provided is a thin moving-magnet loudspeaker in which a quantitative guideline has been established for the mass of a magnetic circuit, and increases in the inductance of a voice coil are suppressed while maintaining the magnetic flux de...
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WO/2011/010754 |
Disclosed are a voice film, a method for manufacturing the same, and a flat type speaker including the same. The voice film of the present invention comprises: a base having a first surface and a second surface corresponding to the first...
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WO/2011/004478 |
A thin speaker device (1, 1B) capable of radiating a large volume of reproduced sound, wherein the speaker device achieves high reproducing efficiency by reliable transmission of vibration of a voice coil (30) to a vibration plate (10). ...
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WO/2011/001158 |
The invention relates to a method of making an actuator comprising a plurality of force elements and an actuator made according to the method. The method comprises providing a coupler for coupling force from the force elements to a load;...
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WO/2010/150203 |
A speaker comprises a permanent magnet (2) and a coil (8) positioned around the permanent magnet (2) and attached to a membrane (10), wherein the membrane comprises an elastomer of thickness less than 0.3mm and with a Young's modulus bel...
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WO/2010/143380 |
A sound wave generator which has better output characteristics than those in the past is provided based on a base layer and insulating layer combination which could not be predicted in the past. The sound wave generator is provided with ...
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WO/2010/134243 |
In a piezoelectric element array (100), filling material (7) existing on a plurality of piezoelectric elements (1a) arranged in a two-dimensional array is pressed to the piezoelectric elements (1a) by a flat member with a soft layer disp...
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WO/2010/131794 |
The present invention provides a method for manufacturing a spiral coil comprising the steps of: forming a solenoid which has a diameter larger than the length thereof by spirally winding an insulated electric wire; forming a spiral coil...
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WO/2010/122556 |
A method for fabricating flat loudspeakers comprising manufacturing a flat loudspeaker including at least one microspeaker array, having first and second main surfaces; and covering at least one of the main surfaces of the loudspeaker wi...
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WO/2010/122487 |
A microphone comprises a substrate (20), a microphone membrane (10) defining an acoustic input surface and a backplate (11) supported with respect to the membrane with a fixed spacing between the backplate (11) and the membrane (10). A m...
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WO/2010/119600 |
Provided is a converter module having the size and the height thereof easily reduced without deteriorating pressure detection sensitivity. A converter module (100) is provided with a converter (110) which converts vibration of a diaphrag...
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WO/2010/116324 |
A microphone has a membrane (20) mounted to vibrate in response to pressure fluctuations, a backplate (30) facing the membrane and being more rigid than the membrane, and circuitry (95) for sensing the vibrations relative to the backplat...
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WO/2010/113384 |
A semiconductor device is provided with a conversion body (110) for converting sound pressure into an electrical signal, and an amplification element (140A) which has an amplification circuit for amplifying the electrical signal converte...
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WO/2010/106733 |
A semiconductor device with a design which prevents entry of cutting fluid and debris when dicing to form single pieces, and thereby improves reliability. The semiconductor device is provided with a substrate (6); at least one semiconduc...
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WO/2010/100861 |
Disclosed is an art for a capacitive micromachined ultrasonic transducer (CMUT), which suppresses deformation in a cavity, non-uniformity in the thickness of an insulating film enclosing the cavity, and deterioration in the flatness of t...
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WO/2010/095553 |
Disclosed is a process for manufacturing an electret that can realize high long-term stability of electrical charges carried therein and has high thermal stability and excellent charge-retaining properties. Also disclosed is an electrost...
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WO/2010/095704 |
A speaker diaphragm (1) includes a material wherein a cyclic olefin resin is added to a carbon fiber reinforced liquid crystal polymer. It is thereby possible to obtain a speaker diaphragm (1) with high sound velocity, a speaker (5), and...
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WO/2010/081347 |
An insulating plate for a condenser microphone and a condenser microphone for using this kind of insulating plate are provided. The insulating plate is mounted between the electrode plate of the microphone and a vibrating diaphragm. The ...
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WO/2010/082519 |
The manufacturing yield of semiconductor devices (CMUT) is improved. Before a polyimide film, which serves as a protection film, is formed, a membrane is caused to vibrate repetitively, thereby evaluating the withstand voltage between u...
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WO/2010/076319 |
The invention relates to a sound transducer comprising a first magnetically conducting element (1), a second magnetically conducting element (3), and a permanent magnet (2), which is connected to a first magnetically conducting element (...
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WO/2010/073836 |
Provided are a speaker unit with which disconnection of wire parts or impact with other members can be prevented, a manufacturing method therefor and a portable information terminal. A frame (31) comprises terminals (61, 62). A diaphragm...
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