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| Number | Title | Issue Date |
| 8189820 | Microphone assembly with underfill agent having a low coefficient of thermal expansion A microphone assembly includes a carrier, a silicon-based transducer, a conducting element, and an underfill agent. The carrier has a first surface holding an electrical contact element. The silicon-based transducer includes a displaceable diaphragm and an electrica... | 05/29/2012 |
| 8189821 | Condenser microphone unit There is provided a condenser microphone unit incorporating a FET (impedance converter) in a unit case, in which the electromagnetic shield on the rear surface side of the unit case is assured, sound waves do not leak, and a steady internal stress is applied to inco... | 05/29/2012 |
| 8175299 | Condenser microphone mountable on main PCB A condenser microphone mountable on a main PCB includes a cylinder-shaped case having opened and closed sides; a first metal ring inserted into the case; a disk-shaped back plate having a sound hole to be connected electrically to the case through the first metal ri... | 05/08/2012 |
| 8170244 | Microphone having multiple transducer elements A microphone is provided. The microphone has a housing; an acoustic port located in the housing; a substrate coupled with the housing; an integrated circuit positioned onto the substrate; and two or more MEMS transducers mounted on the substrate wherein the transduc... | 05/01/2012 |
| 8165323 | Monolithic capacitive transducer A capacitive transducer includes a substrate having a first surface and a second surface. The first surface of the substrate defines a first plane. The substrate has a cavity with an interior peripheral edge. The cavity extends between the first surface and the seco... | 04/24/2012 |
| 8165324 | Micromechanical component and method for its production A cost-effective technology for implementing a micromechanical component is provided, whose layer construction includes at least one diaphragm on the upper side and at least one counter-element, a hollow space being formed between the diaphragm and the counter-eleme... | 04/24/2012 |
| 8155354 | Electro acoustic transducer A condenser microphone capsule is described. The condenser microphone capsule (10) has an electrically conducting transducer membrane (15) arranged in parallel with and at a distance from an electrically conducting electrode surface (26) wherein... | 04/10/2012 |
| 8155355 | Electret condenser microphone An electret condenser microphone includes: a substrate 13 in which an opening 25 is formed; an electret condenser 50 connected to one face of the substrate 13 so as to close the opening 25 and having an acoustic hole 12 and ... | 04/10/2012 |
| 8144898 | High performance microphone and manufacturing method thereof A microphone (100) and method of manufacture thereof is disclosed. The microphone (100) includes a housing (108), a diaphragm assembly (120), a spacer (134), a backplate assembly (140), a body assembly (150), and a pr... | 03/27/2012 |
| 8126166 | Condenser microphone and packaging method for the same Disclosed is a silicone based condenser microphone comprising: a metal case which includes a sound hole, a board which is mounted with a MEMS microphone chip and an ASIC chip having an electric voltage pump and a buffer IC and is formed with a connecting pattern for... | 02/28/2012 |
| 8126167 | Condenser microphone The present invention provides a condenser microphone, in which, with a simple manufacturing process, vibration characteristics of a diaphragm are improved, and a parasitic capacitance occurring between the diaphragm and a back plate is reduced, thus improving sensi... | 02/28/2012 |
| 8126168 | Capacitive sound transducer having a perforated attenuation disk A capacitive sound transducer provided with a perforated attenuation disk. The invention further relates to a capacitive sound transducer and a condenser microphone having such a sound transducer. The sound transducer comprises a diaphragm and a counterelectrode whi... | 02/28/2012 |
| 8121315 | Condenser microphone chip Disclosed is a condenser microphone chip, comprising: a substrate (21); a diaphragm (26) spaced from the substrate; a curved beam (27) connected with the diaphragm (26) to anchor the diaphragm (26) to the substrate (21); a c... | 02/21/2012 |
| 8103026 | Microphone module with electromagnetic interference shielding means A microphone module includes a cabinet, a sensor, an integrated circuit chip, a first substrate, and a second substrate. The first substrate carries the integrated circuit chip and includes a first top surface, a first bottom surface, and a first shielding part with... | 01/24/2012 |
| 8103025 | Surface mountable transducer system The present invention relates to a surface mountable acoustic transducer system, comprising one or more transducers, a processing circuit electrically connected to the one or more transducers, and contact points arranged on an exterior surface part of the transducer... | 01/24/2012 |
| 8094841 | Apparatus and method using capacitive detection with inherent self-calibration The illustrated embodiment of the invention includes a capacitive detection method in a MEMS resonator comprising the steps of: vibrating a resonator with a drive signal; sensing vibration of the resonator by detecting a plurality of sidebands of an electromechanica... | 01/10/2012 |
| 8085956 | Filter circuit for an electret microphone A miniature electret microphone includes an input buffer circuit. The input buffer circuit includes an integrated circuit including a floating ground substrate and a p-n junction. The p-n junction is coupled as a capacitor to a filter circuit of the input buffer cir... | 12/27/2011 |
| 8081783 | Miniature acoustic transducer A technique using a new diaphragm structure and support design is provided herein for microphones or structure designs for pressure sensing. The structure includes a set of capacitive structures. The capacitive structure has a combination of a diaphragm structure, a... | 12/20/2011 |
| 8077886 | Digital microphone A digital microphone comprises a ΔΣ modulator. The ΔΣ modulator has a resonator including a membrane which vibrates by receiving a sound wave and a wiring pattern disposed opposite to the membrane, an oscillator, including the resonator, for outputting an FM sig... | 12/13/2011 |
| 8073166 | Electretization method and apparatus While a dielectric film is set to have a ground potential, a fixed electrode is set to have a different potential from the ground potential. Thereafter, ions produced by corona discharge are allowed to pass through a plurality of acoustic holes formed in the fixed e... | 12/06/2011 |
| 8073167 | Comb sense microphone A miniature microphone, comprising a diaphragm, supported for displacement in response to acoustic waves, from which a plurality of projections extend; a plurality of projections extending from a surface; a body, supporting the surface to maintain the plurality of p... | 12/06/2011 |
| 8059842 | Capacitor microphone A capacitor microphone is constituted by a plate having a fixed electrode, a diaphragm including a center portion and at least one near-end portion that is fixed to the outer periphery, in which the center portion having a vibrating electrode, which is positioned re... | 11/15/2011 |
| 8045733 | Silicon microphone with enhanced impact proof structure using bonding wires A backplateless silicon microphone and a wire protection method for improved impact resistance are disclosed. A circular diaphragm is surrounded by a circular spring having a plurality of slots and perforations to facilitate air damping reduction, release of in-plan... | 10/25/2011 |
| 8023670 | Stray capacitance reduced condenser microphone A condenser microphone includes a conductive layer which is partially disposed on an insulation ring of a second base to reduce stray capacitance. The condenser microphone includes: a conductive case with an opened surface, wherein an end portion of the case is bent... | 09/20/2011 |
| 8019101 | Condenser microphone The present invention is directed to a condenser microphone with a microphone housing cap with a sound inlet opening, a microphone housing with a cross-sectional opening facing the microphone housing cap, and a diaphragm resting along the cross-sectional opening on ... | 09/13/2011 |
| 7991173 | Waterproof microphone An anterior wall of a case has a central aperture and two discharge apertures extending from the central aperture. There is an anterior chamber inside the anterior wall. Moisture such as rain water, even if entering the anterior chamber, is smoothly discharged out o... | 08/02/2011 |
| 7961897 | Microphone with irregular diaphragm A microphone is formed to have a diaphragm that is configured to improve signal to noise ratio. To that end, the microphone has a backplate having a hole therethrough, and a diaphragm movably coupled with the backplate. The diaphragm has a bottom surface (facing the... | 06/14/2011 |
| 7953235 | Directional silicon condenser microphone having additional back chamber A directional silicon condenser microphone which has an additional back chamber includes a case having a front sound hole for passing through a front sound; an acoustic delay device for delaying a phase of a sound; a substrate including a chamber case, a MEMS chip h... | 05/31/2011 |
| 7949142 | Silicon condenser microphone having additional back chamber and sound hole in PCB A silicon condenser microphone has an additional back chamber and a sound hole in a PCB. The microphone includes a case for blocking an external sound; a substrate including a chamber case, a MEMS chip having an additional back chamber formed by the chamber case, an... | 05/24/2011 |
| RE42347 | Solid state silicon-based condenser microphone A solid state silicon-based condenser microphone comprising a silicon transducer chip (1). The transducer chip includes a backplate (13) and a diaphragm (12) arranged substantially parallel to each other with a small air gap in between, thereby ... | 05/10/2011 |
| RE42346 | Solid state silicon-based condenser microphone A solid state silicon-based condenser microphone comprising a silicon transducer chip (1). The transducer chip includes a backplate (13) and a diaphragm (12) arranged substantially parallel to each other with a small air gap in between, thereby ... | 05/10/2011 |
| 7940944 | Directional silicon condenser microphone having additional back chamber A directional silicon condenser microphone having an additional back chamber is disclosed. The directional silicon condenser microphone comprises a case having a front sound hole for passing through a front sound; a acoustic delay device for delaying a phase of a so... | 05/10/2011 |
| 7912235 | Capacitive microphone and method for making the same A capacitive microphone and method for making the same are provided. A backplate with a plurality of holes is formed on a substrate with at least one cavity, and a diaphragm is formed above the backplate. There is an air gap between the backplate and the diaphragm. ... | 03/22/2011 |
| 7907744 | Capacitive vibration sensor and method for manufacturing same A vibration electrode plate 112 is formed on the upper face of a silicon substrate 32 with an insulating coat film 35 interposed in between. An opposing electrode plate 113 is placed on the vibration electrode plate 112 with an ins... | 03/15/2011 |
| 7907743 | Electro-acoustic transducer An object of the present invention is to provide an electro-acoustic transducer having the effects of absorbing vibration and high-frequency noise, reducing the number of components, and preventing heat conduction at the same time. An electro-acoustic transducer acc... | 03/15/2011 |
| 7903830 | Push-pull capacitive micro-machined ultrasound transducer array A push-pull capacitive micromechanical ultrasound transducer (CMUT) is provided for ultrasound imaging or therapy. Gaps and electrodes on both sides of an electrostatic membrane provide push-pull operation. The membrane is oriented to flex in a direction of acoustic... | 03/08/2011 |
| 7903829 | Microphone A microphone having: a first bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section on a front side thereof, back to back; and a second bidirectional microphone unit formed by connecting two unid... | 03/08/2011 |
| 7903831 | Silicon based condenser microphone and packaging method for the same Disclosed are a silicon based condenser microphone and a packaging method for the silicon based condenser microphone. The silicon based condenser microphone comprises a metal case, and a board which is mounted with a MEMS microphone chip and an ASIC chip having an e... | 03/08/2011 |
| 7885423 | Support apparatus for microphone diaphragm A microphone includes a diaphragm assembly supported by a substrate. The diaphragm assembly includes at least one carrier, a diaphragm, and at least one spring coupling the diaphragm to the at least one carrier such that the diaphragm is spaced from the at least one... | 02/08/2011 |
| 7881484 | Capacitor microphone The present invention concerns a capacitor microphone comprising a microphone housing having a sound inlet opening, a diaphragm and a counterpart electrode which is associated with the diaphragm and which is arranged at a small spacing relative to the diaphragm. In ... | 02/01/2011 |
