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WO/2015/085478A1 |
Disclosed is a wireless microphone with low power consumption. A plurality of power supply outputs on a DC-DC boost conversion module on a microphone circuit can respectively provide corresponding working voltages for a microphone audio ...
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WO/2015/082330A1 |
An aircraft engine (10) comprising a gas turbine (13) and a sound generation device (14) for actively reducing the operating noise generated by the gas turbine (13) is characterized in that the sound generation device (14) comprises at l...
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WO/2015/078227A1 |
Provided are a capacitive silicon microphone and a preparation method therefor. The capacitive silicon microphone comprises: a first dielectric layer arranged on a substrate with a back cavity; a lower polar plate located above the back ...
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WO/2015/075432A1 |
An electrode assembly (4) for an electrostatic loudspeaker(1), comprising: a conductive honeycomb layer(14), which may comprise a plurality of annular conducting regions (22-1...22-N) and a central conducting region (20) electrically iso...
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WO/2015/073204A1 |
An ultrasonic audio speaker includes a backing plate comprising a first major surface and a conductive region, the backing plate further comprising a plurality of textural elements disposed on the first major surface. A flexible layer di...
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WO/2015/072616A1 |
Disclosed is a method for manufacturing a microphone package. The method for manufacturing a microphone package according to the present invention comprises the steps of: preparing a substrate having an upper surface on which a mounting ...
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WO/2015/068403A1 |
A smart entry portable unit equipped with a voice recognition device for using a converted and obtained electrical signal with a pre-set specific spoken voice as a voice key, and having the following positioned therein: one or more holes...
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WO/2015/068893A1 |
A microphone package and a method for manufacturing the same are disclosed. The microphone package of the present invention comprises: a substrate comprising a top side having a mounting pad and a bottom side having an inputting and outp...
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WO/2015/066169A1 |
A microelectromechanical system (MEMS) microphone includes a base having a port extending there through. A MEMS die is coupled to the base, and the MEMS die includes a diaphragm and a back plate. An application specific integrated circui...
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WO/2015/061078A1 |
An application specific integrated circuit (ASIC) is used with an acoustic device. An input clock signal is received. The frequency of the input clock signal is determined, and the frequency is indicative of one of a plurality of operati...
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WO/2015/055336A1 |
According to the invention, an electret structure (1) is proposed which comprises an electrically conductive substrate (10), a first electret layer (30) and a porous dielectric layer (20), which is arranged between the substrate (10) and...
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WO/2015/031660A1 |
The claim invention is directed at a MEMS microphone die fabricated using CMOS-based technologies. In particular, the claims are directed at various aspects of a MEMS microphone die having anisotropic springs, a backplate, a diaphragm, m...
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WO/2015/031711A1 |
A semiconductor package. The semiconductor package includes a first side, a second side, a molded substrate, a die, and a lead frame. The second side of the semiconductor package is opposite the first side of the semiconductor package. T...
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WO/2015/023521A1 |
A microelectromechanical system (MEMS) apparatus includes a base. A MEMS device is disposed on the base. A cover encloses the MEMS device on the base. A port extends through the base, and the MEMS device is disposed over the port. A diap...
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WO/2015/020812A1 |
A packaged microphone has a base and a lid that at least in part form a package having a plurality of exterior sides and an interior chamber. The packaged microphone also has a flexible substrate having a first portion within the interio...
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WO/2014/146005A9 |
A method and system for adjusting a HIFU device compensates for shifts in transducer impedance so that the acoustic output from a HIFU transducer remains at a desired level. In accordance with a first aspect, the disclosure includes dyna...
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WO/2015/002821A1 |
In one embodiment, the invention is a microphone system for adjusting the final output sensitivity of a microphone. The system includes transducers that output transducer signals. The system also includes bias circuits providing bias sig...
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WO/2015/001325A1 |
The application describes improvements to (MEMS) transducers (100) having a flexible membrane (301) with a membrane electrode (302), especially where the membrane is crystalline or polycrystalline and the membrane electrode is metal or a...
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WO/2014/204746A1 |
A micro electro mechanical system (MEMS) apparatus includes a substrate. The substrate includes a first surface and a second surface. The first surface and the second surface are on opposing sides of the substrate. A programming contact ...
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WO/2014/196584A1 |
Provided is a capacitive transducer with improved reliability of sealing. The capacitive transducer includes a cell and a sealing portion. The cell includes a first electrode and a vibrating membrane having a second electrode formed to o...
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WO/2014/193954A1 |
A MEMS device. The device includes a membrane, and a reinforced backplate having a plurality of openings. The reinforced backplate include a first layer, and a second layer coupled to the first layer.
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WO/2014/194062A1 |
A MEMS backplate. The MEMS backplate includes a first mesh pattern having a first height and a first arrangement of openings, and a second mesh pattern having a second height and a second arrangement of vent hole apertures. The second me...
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WO/2014/193307A1 |
A method of fabricating a plurality of MEMS microphone modules by providing a first substrate wafer 62 on which are mounted a plurality of sets comprising an LED 102, an IC chip 22 and a MEM microphone device 24, where the LED 102 and IC...
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WO/2014/194316A1 |
A MEMS trapped membrane. The MEMS trapped membrane includes a first layer and a second structure. The first layer has an outer section and an inner membrane. The outer section and inner membrane are detached from each other by a separati...
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WO/2014/189931A1 |
A microphone includes a microelectromechanical system (MEMS) circuit and an integrated circuit. The MEMS circuit is configured to convert a voice signal into an electrical signal, and the integrated circuit is coupled to the MEMS circuit...
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WO/2014/188297A1 |
The invention relates to a hearing aid device that comprises a microphone with a microphone membrane, a hearing aid device housing with a first housing inner wall that has an opening therein, sealing means, and securing means. The securi...
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WO/2014/189245A1 |
The MEMS microphone apparatus of the present invention comprises: a microphone chip in which are formed a MEMS diaphragm and a back plate; and a signal processing chip comprising a variable output voltage charge pump part outputting a va...
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WO/2014/186224A1 |
An Electret Condenser Microphone (ECM) motor apparatus includes a diaphragm ring support structure, a charge plate, and at least one stitch. The diaphragm ring support structure defines an opening there through. The charge plate is dispo...
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WO/2014/180131A1 |
Disclosed is an MEMS microphone structure, comprising: a semiconductor substrate having a cavity; a first dielectric layer having a through hole communicating with the cavity; a lower electrode vibrating diaphragm located above the throu...
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WO/2014/176657A1 |
Traditionally, the edges of untreated, punched perforated sheet metal are coated with an insulative coating for use as stator panels for electrostatic loudspeakers; however, such panels have limitations on withstanding high voltage, whic...
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WO/2014/176080A1 |
An acoustic apparatus includes a substrate, micro electro mechanical system (MEMS) die, and an integrated circuit. The substrate includes a permanent opening that extends there through. The micro electro mechanical system (MEMS) die is d...
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WO/2014/174283A1 |
This application relates to circuitry for processing sense signals generated by MEMS capacitive transducers for compensating for distortion in such sense signals. The circuitry has a signal path between an input (204) for receiving the s...
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WO/2014/168813A1 |
An the acoustic apparatus comprising a first MEMS motor that includes a first diaphragm and a first back plate, and a second MEMS motor that includes a second diaphragm and a second back plate. The first motor is biased with a first elec...
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WO/2014/165844A1 |
Provided is a substantially flat loudspeaker membrane assembly, optimized for wide-frequency-range sound reproduction. A combination of a stiff and lightweight material for a main membrane with a direct voice-coil attachment region, and ...
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WO/2014/163999A1 |
A microphone system includes a diaphragm suspended by springs and including a sealing layer that seals passageways which, if left open, would degrade the microphone's frequency response by allowing air to pass from one side of the diaphr...
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WO/2014/159552A1 |
A microelectromechanical system (MEMS) microphone has a substrate including a backside trench, and a flexible membrane deposited on the substrate extending over the backside trench. The flexible membrane includes a first electrode. A sil...
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WO/2014/160605A1 |
A microelectromechanical system (MEMS) microphone assembly includes a base and a cover. The cover is coupled to the base and together with the base defines a cavity. The base forms a recess and the recess has dimensions and a shape so as...
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WO/2014/151390A1 |
A method of initiating a reset sequence for a MEMS capacitive microphone. The method includes monitoring an output of a microphone and detecting a mute condition in the output of the microphone indicative of a fault condition. The method...
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WO/2014/153500A1 |
A microphone assembly includes a base, a cover, and a niicroelectromechanical system (MEMS) die. The cover extends at least partially over and is coupled to the base. The cover and the base form a cavity. The MEMS die is coupled to the b...
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WO/2014/152786A1 |
A system and method for controlling and adjusting a low-frequency response of a MEMS microphone. The system comprising the MEMS microphone, a controller, and a memory. The MEMS microphone includes a membrane and a plurality of air vents....
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WO/2014/141506A1 |
This silicon substrate has a vertically penetrating chamber. A diaphragm (23) is formed on the upper surface of the silicon substrate so as to cover the upper surface of the chamber. A back plate (28) is provided above the silicon substr...
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WO/2014/141507A1 |
On the top surface of a silicon substrate (22), a diaphragm (24) is arranged so as to cover a chamber in the silicon substrate (22). Multiple anchors (27) are provided on the top surface of the silicon substrate (22), and the bottom surf...
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WO/2014/141505A1 |
A chamber (23) is formed to penetrate vertically through a silicon substrate (22). A diaphragm (24) is arranged on the top surface of the silicon substrate (22) so as to cover the top surface opening of the chamber (23). On the inside of...
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WO/2014/141508A1 |
A silicon substrate (12) has a chamber (15) opened therein, said chamber vertically penetrating the silicon substrate. On an upper surface of the silicon substrate (12), a diaphragm (13) is disposed to cover the upper surface opening of ...
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WO/2014/141909A1 |
This electrostatic speaker is equipped with: a multilayer film body that has a planar film-shaped vibrating film, electrode films provided on either side of the vibrating film, and buffer films interposed between the vibrating film and t...
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WO/2014/133040A1 |
Provided is a speaker that has an electrostatic speaker unit and is provided with the following: a sound absorbing material having a first surface that is disposed on a first surface side of the electrostatic speaker unit and that has a ...
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WO/2014/130681A1 |
An ultrasonic audio speaker includes an emitter and a driver. The emitter can include a first layer having a conductive surface; a second layer having a conductive surface; and an insulating layer disposed between the first and second co...
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WO/2014/119166A1 |
A soft transducer (1) is provided with: a dielectric layer (10) having a semiconductor-containing layer (12), which contains an elastomer, and an inorganic semiconductor and/or an organic semiconductor; and a pair of electrodes (11a, 11b...
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WO/2014/114451A1 |
The invention relates to a microphone (18) for sound detection in a motor vehicle (10), having a microphone capsule (32), which has at least one sound inlet opening (34), a microphone diaphragm arranged in the microphone capsule (32) and...
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WO/2014/107843A1 |
An condenser microphone is provided herein having an impedance converter directly coupled to the transducer of the condenser microphone. The impedance converter includes an active element for impedance conversion and a control circuit fo...
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