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Browse by Category: Main > Electrical & Energy
Class Information
Number: 381/92
Name: Electrical audio signal processing systems and devices > Directive circuits for microphones
Description: Subject matter including a circuit for imparting directional pickup characteristics to microphones.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8705761 Entertainment system and earphone Apr. 22, 2014
8705778 Method and apparatus for generating and playing audio signals, and system for processing audio signals Apr. 22, 2014
8705752 Low frequency noise reduction circuit architecture for communications applications Apr. 22, 2014
8693703 Method of combining at least two audio signals and a microphone system comprising at least two microphones Apr. 8, 2014
8688458 Actuator control of adjustable elements by speech localization in a vehicle Apr. 1, 2014
8687820 Stereo microphone processing for teleconferencing Apr. 1, 2014
8682018 Microphone array with rear venting Mar. 25, 2014
8682005 Vehicle accessory microphone Mar. 25, 2014
8681999 Entrainment avoidance with an auto regressive filter Mar. 25, 2014
8682675 Sound monitoring system for sound field selection based on stored microphone data Mar. 25, 2014
8675890 Speaker localization Mar. 18, 2014
8675882 Sound signal processing device and method Mar. 18, 2014
8665305 Microphone array apparatus having hidden microphone placement and acoustic signal processing apparatus including the same Mar. 4, 2014
8666082 Utilizing information from a number of sensors to suppress acoustic noise through an audio processing system Mar. 4, 2014
8666090 Microphone modeling system and method Mar. 4, 2014
8660274 Beamforming pre-processing for speaker localization Feb. 25, 2014
8660275 Microphone non-uniformity compensation system Feb. 25, 2014
8654990 Multiple microphone based directional sound filter Feb. 18, 2014
8649529 Apparatus, method and computer program for localizing a sound source Feb. 11, 2014
8644533 Method and apparatus for hearing assistance device microphones Feb. 4, 2014
8644525 Virtual microphones in electronic conferencing systems Feb. 4, 2014
8644517 System and method for automatic disabling and enabling of an acoustic beamformer Feb. 4, 2014
8638951 Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals Jan. 28, 2014
8625816 Advanced speech encoding dual microphone configuration (DMC) Jan. 7, 2014
8625826 Apparatus and method for background noise estimation with a binaural hearing device supply Jan. 7, 2014
8614733 Apparatus, system, and method of preventing leakage of information Dec. 24, 2013
8615092 Sound processing device, correcting device, correcting method and recording medium Dec. 24, 2013
8611556 Calibrating multiple microphones Dec. 17, 2013
8611555 Robot head with artificial ears Dec. 17, 2013
8606571 Spatial selectivity noise reduction tradeoff for multi-microphone systems Dec. 10, 2013
8600086 Method for controlling the directionality of the sound receiving characteristic of a hearing aid and a signal processing apparatus Dec. 3, 2013
8594350 Set-up method for array-type sound system Nov. 26, 2013
8588433 Electret microphone circuit Nov. 19, 2013
8588429 Sound device and sound control device Nov. 19, 2013
8587631 Facilitating communications using a portable communication device and directed sound output Nov. 19, 2013
8582783 Surround sound generation from a microphone array Nov. 12, 2013
8577054 Signal processing apparatus, signal processing method, and program Nov. 5, 2013
8577055 Sound source signal filtering apparatus based on calculated distance between microphone and sound source Nov. 5, 2013
8565415 Gain and spectral shape adjustment in audio signal processing Oct. 22, 2013
8565445 Combining audio signals based on ranges of phase difference Oct. 22, 2013
8565446 Estimating direction of arrival from plural microphones Oct. 22, 2013
8565464 Audio conference apparatus Oct. 22, 2013
8553905 Always on headwear recording system Oct. 8, 2013
8553904 Systems and methods for performing sound source localization Oct. 8, 2013
8553903 Sound-direction detector having a miniature sensor Oct. 8, 2013
8553906 Apparatus for enabling karaoke Oct. 8, 2013
8548177 Methods and systems for source tracking Oct. 1, 2013
8548176 Apparatus including microphone arrangements Oct. 1, 2013
8548494 Localization of mobile computing devices in indoor environments Oct. 1, 2013
8542846 Vehicle sound enhancing system and method of producing Sep. 24, 2013

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