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US20150024799 |
MICROPHONE ARRAY TRANSDUCER FOR ACOUSTIC MUSICAL INSTRUMENT
A dipole microphone assembly for a nearfield sound source has a first microphone and a second microphone. The second microphone is out of phase with the first microphone so as to provide a dipole... |
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US20120230511 |
MICROPHONE ARRAY WITH REAR VENTING
Techniques for noise suppression systems coupled to one or more microphone arrays are described, including a housing, a first microphone, a second microphone, and a third microphone, where the... |
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US20120207322 |
MICROPHONE ARRAY WITH REAR VENTING
Microphone arrays (MAs) are described that position and vent microphones so that performance of a noise suppression system coupled to the microphone array is enhanced. The MA includes at least two... |
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US20130294612 |
AUTOMATIC MICROPHONE MUTING OF UNDESIRED NOISES BY MICROPHONE ARRAYS
Methods and systems for cancelation of table noise in a speaker system used for video or audio conferencing are disclosed. Table noise is cancelled by using a vertical microphone array to... |
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US20140185825 |
FORMING VIRTUAL MICROPHONE ARRAYS USING DUAL OMNIDIRECTIONAL MICROPHONE ARRAY (DOMA)
A dual omnidirectional microphone array noise suppression is described. Compared to conventional arrays and algorithms, which seek to reduce noise by nulling out noise sources, the array of an... |
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US20140185824 |
FORMING VIRTUAL MICROPHONE ARRAYS USING DUAL OMNIDIRECTIONAL MICROPHONE ARRAY (DOMA)
A dual omnidirectional microphone array noise suppression is described. Compared to conventional arrays and algorithms, which seek to reduce noise by nulling out noise sources, the array of an... |
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US20130287223 |
UNIDIRECTIONAL MICROPHONE
The present invention provides a unidirectional microphone by adding an output from an omnidirectional condenser microphone unit and an output from a bi-directional ribbon microphone unit... |
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US20110249830 |
MICROPHONE UNIT
There is provided a microphone unit having a plurality of miniature microphones for respectively recording audio signals and a carrier unit. The miniature microphones can be arranged on a side of... |
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US20150117672 |
MICROPHONE ARRAY
A spherical microphone array that includes a sound-diffracting structure having a closed three-dimensional shape of at least one non-regular, regular or semi-regular convex polyhedron with... |
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US20110026731 |
MICROPHONE CIRCUIT AND METHOD FOR PREVENTING MICROPHONE CIRCUIT FROM GENERATING NOISE WHEN RESET
The invention provides a microphone circuit. In one embodiment, the microphone circuit comprises a transducer, a biasing resistor, a pre-amplifier, and a switch circuit. The transducer is coupled... |
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US20140185814 |
BOUNDARY BINAURAL MICROPHONE ARRAY
A boundary binaural microphone array includes a pair of microphones spaced from one another by a distance between approximately 5 cm and 30 cm. The boundary binaural microphone array has a... |
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US20140192998 |
ADVANCED SPEECH ENCODING DUAL MICROPHONE CONFIGURATION (DMC)
A microphone array is described for use in ultra-high acoustical noise environments. The microphone array includes two directional close-talk microphones. The two microphones are separated by a... |
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US20120087513 |
MICROPHONE UNIT AND SOUND COLLECTING DEVICE
To provide a microphone unit capable of acquiring a target sound with high accuracy. A microphone unit in accordance with an exemplary embodiment of the present invention includes a plurality of... |
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US20120128186 |
CONVERSATION DETECTION APPARATUS, HEARING AID, AND CONVERSATION DETECTION METHOD
A conversation detection apparatus uses a head-mounted microphone array to accurately determine whether a speaker in front is a conversing person or not. A conversation detection apparatus (100)... |
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US20130089218 |
AUDIO EQUIPMENT AND OSCILLATION UNIT
A mobile phone (100) detects at least a direction of an utterance position of a user from the voice input to a plurality of microphones (121,122) and controls an output direction of a voice out of... |
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US20120106749 |
Microphone Non-Uniformity Compensation System
A microphone compensation system responds to changes in the characteristics of individual microphones in an array of microphones. The microphone compensation system provides a communication system... |
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US20110243347 |
PIPE CALIBRATION DEVICE FOR CALIBRATION OF OMNIDIRECTIONAL MICROPHONES
Embodiments include a device comprising a pipe having at least one section that spans between a first end and a second end of the pipe. The pipe has a cylindrical cross-section. The device... |
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US20120106755 |
HANDHELD ELECTRONIC DEVICE WITH MICROPHONE ARRAY
A handheld electronic device includes a body and a microphone array. The body includes a side and a recess formed on the side. The microphone array includes a first microphone and a second... |
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US20080055101 |
Location Tracking System And A Method Of Operating Same
A location tracking system for tracking the location of a person in a premises is disclosed as including a plurality of location sensing devices for assessing the location of the person in the... |
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US20110299701 |
MINIATURE MICRO-ELECTROMECHANICAL SYSTEM (MEMS) BASED DIRECTIONAL SOUND SENSOR
A micro-electromechanical (MEMS) based directional sound sensor includes a two sensor wings attached to a surrounding support structure by two legs. The support structure is hollow beneath the... |
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US20130142358 |
Variable Directivity MEMS Microphone
The directivity pattern of a MEMS microphone is adjusted. An indication of a position of a MEMS microphone is received and the microphone includes at least one diaphragm. An adjustment to the... |
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US20060067540 |
Method for signal nonlinear distortion detection and adaptive gain control
An apparatus includes a microphone to generate a voice signal. The apparatus further includes an adjustable gain circuit coupled to the microphone to selectively apply a gain to the voice signal.... |
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US20110103611 |
HEARING DEVICE AND METHOD FOR SUPPRESSING FEEDBACK WITH A DIRECTIONAL MICROPHONE
A hearing device and an associated method use an adaptive directional microphone for suppressing feedback. The hearing device includes an adaptation unit which sets the directional microphone so... |
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US20120093337 |
Microphone Array
Embodiments of the invention improve upon the prior art array by having more carefully defined directivity functions designed to meet two criteria, being firstly to minimise cross-talk between... |
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US20080063224 |
Sound System
To conclude, in a preferred embodiment in accordance with the invention, the sound system comprises two loudspeakers (LA, LB) which mask their spectral signatures at the ear (C1) of the listener... |
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US20080273711 |
APPARATUS, SYSTEM AND METHOD OF INTEGRATING WIRELESS TELEPHONES IN VEHICLES
A system, apparatus and method of integrating a wireless telephone in a vehicle are provided. The system, apparatus and method consist of installing a parabolic speaker in the vehicle that has a... |
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US20080205665 |
VOICE CONFERENCE APPARATUS
A voice conference apparatus includes a sound collecting unit and a loudspeaker, while the sound collecting unit has a directional polar sensitivity characteristic which has a higher sensitivity... |
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US20130195285 |
ZONE BASED PRESENCE DETERMINATION VIA VOICEPRINT LOCATION AWARENESS
A speech from a speaker proximate to one or more microphones within an environment can be received. The microphones can be a directional microphone or an omni-directional microphone. The speech... |
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US20070064960 |
Apparatus to convert analog signal of array microphone into digital signal and computer system including the same
An apparatus to convert analog signals of an array microphone into digital signals, and a computer system including the same including a first unit that receives and amplifies a plurality of... |
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US20070116300 |
Channel decoding for wireless telephones with multiple microphones and multiple description transmission
An embodiment of the present invention provides a wireless telephone including a receiver module, a channel decoder, a speech decoder, and a speaker. The receiver module receives a plurality of... |
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US20130016852 |
SOUND SOURCE LOCALIZATION USING PHASE SPECTRUM
An array of microphones placed on a mobile robot provides multiple channels of audio signals. A received set of audio signals is called an audio segment, which is divided into multiple frames. A... |
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US20130195297 |
MULTI-DIRECTIONAL AND OMNIDIRECTIONAL HYBRID MICROPHONE FOR HEARING ASSISTANCE DEVICES
Disclosed herein, among other things, are methods and apparatus for an directional microphone arrays for hearing assistance devices. In various embodiments, the present subject matter provides a... |
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US20090055170 |
Sound Source Separation Device, Speech Recognition Device, Mobile Telephone, Sound Source Separation Method, and Program
A sound source signal from a target sound source is allowed to be separated from a mixed sound which consists of sound source signals emitted from a plurality of sound sources without being... |
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US20150163588 |
REMOTE SPEAKER MICROPHONE
A remote speaker microphone having a directional microphone, a speaker, and a housing. The housing has a first portion sized to contain the speaker and a second portion sized to contain the... |
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US20110243348 |
PIPE CALIBRATION SYSTEM FOR OMNIDIRECTIONAL MICROPHONES
Embodiments include a system comprising a pipe that includes a first end and a second end. The pipe includes a plurality of sections coupled together. The system includes a loudspeaker that is a... |
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US20130321133 |
METHOD AND APPARATUS FOR IDENTIFYING A SPEAKER
Systems and methods for identifying a participant providing audible information during a communication session are disclosed. More particularly, speech localization is utilized to determine a... |
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US20110051953 |
CALIBRATING MULTIPLE MICROPHONES
The specification and drawings present a new method, apparatus and software product for calibrating multiple microphones (e.g., a microphone array) to match their sensitivity using an ambient... |
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US20090268899 |
SOUND PICKUP APPARATUS AND CONFERENCE TELEPHONE
A sound pickup apparatus includes a plurality of microphones, and a controller that receives signals from the plurality of microphones respectively. When the controller detects a failure in one of... |
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US20120288113 |
MICROPHONE
A microphone includes a plurality of microphone units; in which the microphone units include a first group of microphone units and a second group of microphone units, the first group of microphone... |
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US20130114822 |
PIEZOELECTRIC MICROPHONES
Electronic devices and microphone devices are described. |
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US20090323981 |
Satellite Microphone Array For Video Conferencing
Speakers are identified based on sound origination detection through use of infrared detection of satellite microphones, estimation of distance between satellite microphones and base unit... |
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US20120120218 |
SEMI-PRIVATE COMMUNICATION IN OPEN ENVIRONMENTS
A system and method providing semi-private conversation using an area microphone between one local user in a group of local users and a remote user. The local and remote users may be in different... |
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US20090323977 |
SOUND SOURCE SEPARATION SYSTEM, SOUND SOURCE SEPARATION METHOD, AND ACOUSTIC SIGNAL ACQUISITION DEVICE
The invention provides a sound source separation system, a sound source separation method, and an acoustic signal acquisition device which can precisely separate a target sound and a disturbance... |
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US20130108074 |
MICROPHONE
A microphone comprises a sound inlet, a first MEMS microphone structure comprising a first membrane and associated backplate in the path of the sound inlet and a second MEMS microphone structure... |
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US20150049878 |
DIRECTIONAL MEMS MICROPHONE
The present invention relates to a directional MEMS microphone which comprises a cover, a printed circuit board, a sound inlet structure, an integrated circuit chip which is attached to the... |
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US20120308037 |
MICROELECTROMECHANICAL MICROPHONE CHIP HAVING STEREOSCOPIC DIAPHRAGM STRUCTURE AND FABRICATION METHOD THEREOF
A microelectromechanical microphone chip having a stereoscopic diaphragm structure includes a base, having a chamber; a diaphragm, disposed on the chamber and having steps with height differences;... |
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US20060245601 |
Robust localization and tracking of simultaneously moving sound sources using beamforming and particle filtering
The present invention relates to a system for localizing at least one sound source, comprising a set of spatially spaced apart sound sensors to detect sound from the at least one sound source and... |
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US20120014535 |
SOUND COLLECTION DEVICE
The invention provides a sound collection device having little error in a desired directivity. The sound collection device includes a unidirectional microphone 12A, a unidirectional microphone... |
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US20130093831 |
Satellite Microphones for Improved Speaker Detection and Zoom
Architecture for exploiting satellite microphones and employing other techniques of conference room camera/microphone systems to significantly improve the true positive rate (reduce false... |
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US20140219472 |
SOUND COLLECTING SYSTEM AND ASSOCIATED METHOD
A sound collecting system includes a plurality of microphones, a distance estimation module and an adjustment module. The distance estimation module estimates a distance to a user to accordingly... |