microphone (Total 19974 Patents Found)

A variable-directivity microphone device comprises a microphone unit having a plurality of microphones, a circuit which resultingly adds the low-frequency range components of the output signal of one of the microphones of the microphone unit and mixes with the output signal of the other microphone so that only the high...
A microphone signal attenuating breathing mask body having a gas port for inhalation of a gas to the wearer in a flow stream therethrough. A demand microphone is mounted to the mask and is coupled to an electromagnetic switch responsive to a predetermined magnetic field for switching from an actuation to an attenuation...
An integrated circuit configured to provide a microphone output signal, comprising: a preamplifier coupled to receive an input signal, generated by either a first microphone member or a second microphone member, where one of the members is movable relative to the other microphone member; a voltage pump to output a pump...
When monitoring a patient, acoustic events (e.g., coughs, snores, impact sounds, verbalizations, etc.) relevant to the patient's status are detected by a microphone array ( 12 ) and timestamped. Detected event signals generated by the microphone array ( 12 ) are filtered to identify signatures such as zero crossing...
Boomless-microphones are described for a wireless helmet communicator with siren signal detection and classification capabilities. An acoustic component receives an audio signal and comprises a left acoustic sensor and a right acoustic sensor. The left acoustic sensor is mountable or attachable to the surface of a left...
This audio processing device comprises: an acquisition unit for acquiring audio collected by an audio collection unit; a detection unit for detecting the position of the audio; a determination unit that determines whether or not the audio contains an utterance when the audio position is within a privacy protection area...
Au niveau d'un banc de filtres configurable, des commandes ou signaux de commande sont reçus depuis un dispositif de traitement externe. Les commandes ou signaux de commande sont efficaces pour configurer et connecter des éléments sélectifs parmi la pluralité d'éléments dans le banc de filtres. Un signal...
A digital microphone has a transducer for generating an analog signal representing an acoustic signal, and a single bit sigma-delta modulator analog-to-digital converter of order greater than one for generating a digital output signal from said analog signal in the form of a sigma-delta modulated bit stream at an overs...
Microelectromechanical systems (MEMS) sensors and related bias voltage techniques are described. Exemplary MEMS sensors, such as exemplary MEMS acoustic sensors or microphones described herein can employ one or more bias voltage generators and single-ended or differential amplifier arrangements. Various embodiments are...
A passive vibration cancellation system manufactured of a plurality of waterproof diaphragms and a more rigid support structure is sized to cover a microphone of an auditory prosthesis. The system includes multiple flexible diaphragms that deform in opposite directions when acted upon by sound, but deform in the same d...
An audio conference system has a plurality of specially designed microphone housings into each of which a directional microphone is positioned. Each microphone housing is positioned entirely within the body of the audio conferencing system, the microphone housings are strategically positioned at each one of four corner...
The present invention concerns a diaphragm unit for a condenser microphone and a method of making the same. A conventional condenser microphone is complex in construction and the tension of its diaphragm is readily affected by temperature because first and second rings for holding the diaphragm therebetween and a cylin...
The present invention provides an automatic preconditioning connection device and method for automatically optimizing and coupling a selected external peripheral device to a computer. The automatic preconditioning connection device is coupled, either directly or in daisy-chain fashion, to a plurality of external periph...
A device and method are disclosed which perform diagnostics on a microphone and display diagnostic information and instructions to a user. The invention uses a processor to create histograms of the PCM (Pulse Code Modulation) signal after removing any dc bias to determine signal and noise levels and ratios, as well as ...
According to one embodiment, a strain and pressure sensing device includes a semiconductor circuit unit and a sensing unit. The semiconductor circuit unit includes a semiconductor substrate and a transistor. The transistor is provided on a semiconductor substrate. The sensing unit is provided on the semiconductor circu...
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 sensitivity. Specifically, the diaphragm having a gear-like...
A hearing aid apparatus is disclosed that employs both an omnidirectional microphone and at least one directional microphone of at least the first order. The electrical signals output from the directional microphone are supplied to an equalization amplifier which at least partially equalizes the amplitude of the low fr...
An MEMS microphone includes a casing ( 10 ) and a microphone chip ( 30 ) disposed in the casing. The casing defines a sound entrance ( 11 ) therein. The microphone chip includes a back plate ( 31 ), an isolation layer ( 32 ) and a diaphragm ( 33 ). The isolation layer separates the back plate from the diaphragm so as t...
A protective grommet for a microphone has an enclosure with an internal cavity. The internal cavity is dimensioned to receive an input end of the microphone therein. A membrane, particularly a mesh, and more particularly a wire mesh, and more particularly a stainless steel wire mesh, is embedded into the enclosure span...
The interference powers with directional microphones are to be suppressed as far as possible. To this end, provision is made to adaptively filter the microphone of a number of microphones as a function of at least one parameter. The directional effect of the directional microphone achieved in this way is adjusted by mo...