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US20130044899 Dual Backplate Microphone  
A dual backplate microphone is provided that utilizes either an electret condenser or a MEMS condenser configuration and in which an op-amp IC is electrically connected to both backplates and the...
US20110293114 Condenser microphone unit and method of manufacturing diaphragm assembly of condenser microphone  
This invention provides a condenser microphone unit having a diaphragm assembly in which a diaphragm does not attach to a fixed electrode even if a polarization voltage is increased. A condenser...
US20120308045 Microphone Assemblies With Through-Silicon Vias  
Microphone assemblies may be provided that have microelectromechanical systems microphones and associated application-specific integrated circuits mounted to printed circuit boards. The...
US20150264465 MEMS MICROPHONE WITH SPRINGS AND INTERIOR SUPPORT  
A MEMS microphone has a stationary portion with a backplate having a plurality of apertures, and a diaphragm spaced from the backplate and having an outer periphery. As a condenser microphone, the...
US20120183156 MICROPHONE SYSTEM WITH A HAND-HELD MICROPHONE  
A microphone system is provided. The microphone system comprises at least one hand-held microphone and a base station. Audio signals detected by the hand-held microphone are forwarded to the base...
US20130136267 Microphone and Method for Calibrating a Microphone  
A microphone and a method for calibrating a microphone are disclosed. In one embodiment the method for calibrating a microphone comprises operating a MEMS device based on a first AC bias voltage,...
US20100329483 CAPACITOR MICROPHONE  
Diaphragms of a plurality of capacitor microphone units are arranged in the same plane and the capacitor microphone units are connected in series to make an output from an impedance converter...
US20100080404 DRIVE UNIT MANUFACTURING METHOD AND DRIVE UNIT  
The present invention provides a drive unit manufacturing method including the steps of: preparing a conducting wire which contains at least copper and forms a voice coil for conversion between...
US20100322439 CAPACITOR MICROPHONE UNIT AND CAPACITOR MICROPHONE  
A diaphragm adhering to a diaphragm holder and vibrating upon receiving a sound wave; and a fixed pole facing the diaphragm with a space from the diaphragm to form a capacitor with the diaphragm...
US20050207595 Microphone apparatus built in computer network  
A microphone device into which desired sound for broadcasting can be written through a network is provided. A microphone device 1 having a microphone element 11 for supplying a sound from a...
US20070086605 Electro-acoustic transducer comprising an rfid circuit  
In an electro-acoustic transducer (1), there are provided sound-generating means (38) of an annular form that surround an interior space (22), in which interior space (22) is housed an integrated...
US20080107287 Personal hearing control system and method  
A personal hearing control system includes a microphone located within a user's sealed ear canal, a speaker having a diaphragm which directs sound into the ear canal, and a controller which drives...
US20120250897 Dual Cell MEMS Assembly  
A transducer assembly utilizing at least two MEMS transducers is provided, the transducer assembly preferably defining either an omnidirectional or directional microphone. In addition to at least...
US20060115099 Cord bush and control box for microphone  
The present invention provides a cord bush that makes it possible to reliably inhibit a liquid such as water from running along a cord, the length of which can be adjusted, into a control box...
US20060147060 Multifunction preamplifier microphone  
Systems for a multifunction preamplifier microphone are disclosed. The system generally includes a microphone transducer and a configurable preamplifier circuit. The configurable preamplifier...
US20130022214 Method and System for Touch Gesture Detection in Response to Microphone Output  
In some embodiments, a method for processing output of at least one microphone of a device (e.g., a headset) to identify at least one touch gesture exerted by a user on the device, including by...
US20130089222 CONDENSER MICROPHONE  
The present invention has: a condenser microphone unit which performs electroacoustic conversion according to a change in an electrostatic capacitance between a diaphragm and a fixed pole; a...
US20070110252 Diagnostic circuit  
A circuit is described which enables the determination of the proper functioning of a second circuit, in particular the operation of a headphone jack or audio speakers.
US20050195998 Simultaneous audio playback device  
This invention allows a plurality of users to listen to different sounds at high sound quality. This invention provides a selector 16 for selecting audio signals corresponding to requests from a...
US20120140956 DIFFERENTIAL MICROPHONE CIRCUIT  
There is provided an electret microphone comprising a junction gate-field-effect transistor (JFET) and a bias resistor connected to the JFET and supplying current to the JFET, whereby an...
US20070217628 Two-wire microphone circuit  
A first circuit stage comprises at least one NMOS transistor and is coupled to a microphone transducer. A coupling circuit is coupled to the first circuit stage. A second circuit stage is adapted...
US20070165882 ADJUSTABLE REPHASE DEVICE FOR COMPRESSION DRIVERS AND DIRECT EMISSION DOME-SHAPED LOUDSPEAKERS  
The invention concerns a rephasing device for compression drivers and dome-shaped, direct radiation loudspeakers that comprise a magnetic circuit with a vibrating diaphragm (11) having a...
US20060159287 MTM of bessels loudspeaker  
An MTM loudspeaker in which the Ms and/or the T is constructed as a Bessel Array. The shapes of the diaphragms, the transducer count, the Bessel type, and/or the acoustic center positioning can be...
US20060072765 Acoustic system, control method therefor, program for implementing the method, and storage medium storing the program  
An acoustic system that is capable of forming a desired sound field and sound pressure as desired and in a flexible manner depending on the situation when speakers are newly installed and when...
US20110110535 Carbon nanotube speaker  
A speaker includes an sound wave generator, at least one first electrode, at least one second electrode, an amplifier circuit, and a connector. The at least one first electrode and the at least...
US20110068944 MOTION SENSING REMOTE MICROPHONE  
An apparatus and method comprising of a remote microphone attached to a portable radio such as those carried by Firefighters and other First Responders and equipped with automatic motion sensing...
US20120224722 METHOD FOR DRIVING A CONDENSER MICROPHONE  
A method for driving a condenser microphone is provided. The condenser microphone comprises a membrane and an electrode constituting a capacity. A polarization voltage is applied between the...
US20050105746 Passive and active escapement for sound resonance  
In pressure-free condition, music is produced automatically by resonance of free matter. In this instance of freedom, sound is produced and propagated. If a finger is softly placed on an excited...
US20100296670 Impedance Converter For Microphone and Microphone  
Vacuum tubes that receive output signals from microphone units through grids and with which the signals are output as outputs from cathode followers; FETs in cascade connection with the...
US20060140420 Eye-based control of directed sound generation  
In one aspect, an electronic system includes a source of an audio signal, a sound projector, an imaging system, and a controller. The sound projector is operable to generate at least one directed...
US20060159288 Bessel dipole loudspeaker  
A dipole loudspeaker in which the oppositely oriented transducers each is a Bessel Array. Optionally, Improved or Super Bessel Arrays are used, and their half-amplitude end position transducers...
US20120033832 MICROPHONE AND ACCELEROMETER  
The invention relates to a method for manufacturing a micromachined microphone and an accelerometer from a wafer 1 having a first layer 2, the method comprising the steps of dividing the first...
US20130195288 Single-Wire Programmable MEMS Microphone, Programming Method and System Thereof  
The present invention provides a single wire programmable Micro Electromechanical System (MEMS) microphone and a programming method and system thereof. The single wire programmable MEMS microphone...
US20130051583 High Voltage Multiplier For A Microphone And Method Of Manufacture  
A microphone circuit includes a condenser microphone and a charge pump. The condenser microphone is configured to receive sound energy and responsively convert the sound energy into a microphone...
US20080175412 Condenser microphone and method for manufacturing the same  
In a gooseneck condenser microphone that supports a condenser microphone unit via a support pipe, when the microphone is used by inserting a microphone cable through the support pipe in the state...
US20070217629 SYSTEM FOR AUTOMATIC RECEPTION ENHANCEMENT OF HEARING ASSISTANCE DEVICES  
Method and apparatus for automatic reception enhancement of hearing assistance devices. The present subject matter relates to methods and apparatus for automatic reception enhancement in hearing...
US20080095386 MUTE CIRCUIT FOR A MICROPHONE  
An apparatus having a microphone and a mute circuit (not shown in detail here) operable to be actuated by a rotating door assembly. The apparatus provides a mute circuit suitable to mute the audio...
US20080069381 Module having a remote turn-on function for use with a powered subwoofer/speaker  
The present invention provides a module for a powered speaker, such as a subwoofer that may be actuated to turn the speaker on and off remotely by energizing the auxiliary AC power supply provided...
US20070237344 Microphone enhancement device  
A microphone enhancing device combines an automatic gain control, a band-limited compressor, and a gate in one very compact package that is small enough and efficient enough to plug into or be...
US20130044898 Sensitivity Adjustment Apparatus And Method For MEMS Devices  
A microelectromechanical (MEMS) microphone includes a MEMS motor and a gain adjustment apparatus. The MEMS motor includes at least a diaphragm and a charge plate and is configured to receive sound...
US20080298607 AUDIO INTERFACE DEVICE AND METHOD  
The invention provides an audio interface device and method utilizing a single audio jack connector for plugging into a three-wire analog microphone or a three-wire digital microphone, thereby...
US20120308048 Communications Headset Power Provision  
Electric power is provided to a two-way communications headset by creating a differential DC voltage potential between a ground conductor associated with a microphone of that headset and a ground...
US20050084118 Circuit arrangement for an electric appliance  
A circuit arrangement for an electric appliance, having a control device and a power supply connected with an electric current supply connector for supplying functional units to be controlled of...
US20050207596 Packaged digital microphone device with auxiliary line-in function  
A digital microphone device outputs a digital audio signal to a digital signal processing system. The digital microphone device includes an acoustic transducer for producing an analog voltage...
US20120014541 AMPLIFYING DEVICE FOR CONDENSER MICROPHONE  
An amplifying device for a condenser-microphone according to the present invention includes: a differential amplifier (20) having an inverting input terminal (1) to which a sound pressure signal...
US20090092266 Wireless audio system capable of receiving commands or voice input  
A wireless audio system includes a host, a transmitter, and a receiver. The host includes a controller for controlling operations of the host, application software executed by the controller for...
US20150125003 System and Method for a MEMS Transducer  
An embodiment as described herein includes a microelectromechanical system (MEMS) with a first MEMS transducer element, a second MEMS transducer element, and a semiconductor substrate. The first...
US20150256917 COMPONENT HAVING A MICROPHONE AND MEDIA SENSOR FUNCTION  
A concept is provided for the cost-effective and space-saving implementation of multisensor modules having a high-quality acoustic microphone function and having at least one further sensor...
US20090279716 VIBRATION GENERATOR FOR ELECTRONIC DEVICE HAVING SPEAKER DRIVER AND COUNTERWEIGHT  
A vibration generator for a portable electronic device includes a speaker driver and a counterweight retained by a housing to form a closed assembly. When a communications transmission is received...
US20080152171 DEEP SUB-MICRON MOS PREAMPLIFIER WITH THICK-OXIDE INPUT STAGE TRANSISTOR  
The present invention relates to a condenser microphone assembly comprising a condenser microphone transducer comprising adjacently positioned diaphragm and back-plate members having an air gap...

Matches 1 - 50 out of 200 1 2 3 4 >