Patents for H04R 3 - Circuits for transducers (18,190)
06/2006
06/08/2006US20060120541 Combined microphone-loudspeaker
06/08/2006DE19746523B4 Verfahren zur Klangerzeugung in Kraftfahrzeugen und eine Schaltungsanordnung zur Durchführung des Verfahrens Method for producing sound in motor vehicles and circuitry for performing the method
06/08/2006DE102004056733A1 Akustiksystem mit automatischer Umschaltung Acoustic system with automatic switchover
06/08/2006CA2564045A1 Non-transitory recording medium, reproduction device, non-transitory computer readable recording medium storing a management program, reproduction method, and recording method fora click sound playback
06/08/2006CA2529594A1 System for suppressing rain noise
06/07/2006EP1667488A1 Acoustic characteristic correction system
06/07/2006EP1667486A2 Microphone systems and microphone apparatus
06/07/2006EP1667447A1 Data conversion system
06/07/2006EP1665884A2 Audio reproduction system
06/07/2006EP1665878A1 High efficiency audio transducer
06/07/2006EP1665875A1 High efficiency audio reproduction
06/07/2006EP1665874A1 Audio frequency range adaptation
06/07/2006EP1665873A2 Parametric tranducer having an emitter film
06/07/2006EP1665783A1 Digital loudspeaker
06/07/2006EP1100628B1 Off-aperture electrical connection for ultrasonic transducer
06/07/2006CN1784926A Array speaker system
06/07/2006CN1784085A Control method of mixing system and control apparatus of mixing system
06/07/2006CN1258952C System of sound transducers with controllable directional properties
06/07/2006CN1258387C Filter
06/06/2006US7058463 Method and apparatus for implementing a class D driver and speaker system
06/06/2006US7058190 Acoustic signal enhancement system
06/06/2006US7058187 Automatic sound field correcting system and a sound field correcting method
06/06/2006US7058186 Loudspeaker device
06/06/2006US7058184 Acoustic measurement method and apparatus
06/06/2006US7058183 Sound correction system, recording medium on which a sound correction program is recorded, sound correction method and sound correction apparatus
06/01/2006US20060115103 Systems and methods for interference-suppression with directional sensing patterns
06/01/2006US20060115099 Cord bush and control box for microphone
06/01/2006US20060115097 Microphone system with directional response
06/01/2006US20060115094 Howling suppression device and howling suppression method
06/01/2006US20060115093 Audio signal processing method and apparatus
06/01/2006US20060114979 Fully parametric equalizer
06/01/2006US20060114315 Mixed media telecommunication call manager
05/2006
05/31/2006EP1662842A1 Voice reproducing method and reproducer using line array speaker unit
05/31/2006EP1429315B1 Method and system for suppressing echoes and noises in environments under variable acoustic and highly fedback conditions
05/31/2006CN2785297Y Electric horn swing adjuster
05/31/2006CN1781337A Method and apparatus for substantially improving power supply rejection performance in a miniature microphone assembly
05/31/2006CN1781335A Microphone array having a second order directional pattern
05/31/2006CN1780498A Loundspeaker
05/31/2006CN1780495A Ceiling microphone assembly
05/31/2006CN1780493A Method and apparatus for configuring the audio outputs of an electronic device
05/31/2006CN1780337A Free disturbance service realization in telecommunication network
05/30/2006US7054452 Signal processing apparatus and signal processing method
05/30/2006US7054451 Sound reinforcement system having an echo suppressor and loudspeaker beamformer
05/30/2006US7054438 Method and apparatus for active reduction of speakerphone singing
05/26/2006WO2006055783A1 Multiple amplifier synchronization system
05/26/2006WO2006055723A1 Hearing protection and earphone device
05/26/2006WO2006055671A2 Crossover circuit for reducing impedance response variance of a speaker
05/24/2006EP1658751A2 Audio input system
05/24/2006DE102005020309A1 Signalverarbeitungsverfahren zur Tonsignalkompensation Signal processing method for Tonsignalkompensation
05/24/2006CN2783639Y Infrared receiving earphone-microphone type intelligent phonetic explanation device
05/24/2006CN2783385Y Multi-channel digital control audio amplifier
05/24/2006CN1778041A Audio quality adjustment device
05/23/2006US7050971 Speech recognition apparatus having multiple audio inputs to cancel background noise from input speech
05/23/2006US7050966 Sound intelligibility enhancement using a psychoacoustic model and an oversampled filterbank
05/23/2006US7050870 Reproduction apparatus and music delivery system
05/23/2006US7050594 Sound control unit and sound system
05/23/2006US7050591 Acoustic output processing apparatus
05/18/2006US20060105818 Telecommunication terminal comprising a memory for storing acoustic effect data
05/18/2006US20060104462 Crossover circuit for reducing impedance response variance of a speaker
05/18/2006US20060104459 Method for reducing interferences of a directional microphone
05/18/2006US20060104458 Video and audio conferencing system with spatial audio
05/18/2006US20060104457 Microphone system and microphone apparatus
05/18/2006US20060104453 Method and apparatus for automatically setting speaker mode in audio/video system
05/18/2006US20060103722 Voice output system and method
05/17/2006EP1657962A2 Setting a speaker mode
05/17/2006EP1657956A2 Vehicle-mounted speaker apparatus
05/17/2006EP1657954A1 Transmitter of wireless microphone, receiver for wireless microphone, mobile information communication apparatus, and communication system for wireless microphone
05/17/2006EP1657818A1 System estimation method, program, recording medium, system estimation device
05/17/2006CN2781694Y Infrared radio microphone controller
05/17/2006CN1774144A Method and device for reducing the feedback in acoustic systems
05/17/2006CN1774143A Earphone output circuit capable of omitting block capacitor
05/17/2006CN1774142A Detector and detecting method for ear phone
05/17/2006CN1774141A Detecting device for ear phone with speeking function and operating method thereof
05/17/2006CN1773934A Method for processing fault of multimedia sub-system equipment
05/17/2006CN1256855C Three-line earphone interface circuit and its circuit method
05/16/2006US7046815 Microphone
05/16/2006US7046812 Acoustic beam forming with robust signal estimation
05/16/2006US7046016 Potential fixing device, potential fixing method, and capacitance measuring instrument
05/16/2006US7045699 Mixing method, mixing apparatus, and program for implementing the mixing method
05/11/2006WO2006049260A1 Signal processing method, signal processing device, and signal processing program
05/11/2006US20060100868 Minimization of transient noises in a voice signal
05/11/2006US20060098828 Network phone adapter capable of utilizing a normal phone to serve as a microphone and a speaker
05/11/2006US20060098827 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
05/11/2006US20060098826 Method and system for amplifying auditory sounds
05/11/2006DE102004053776A1 Verfahren zur Verstärkung eines Akustiksignals und entsprechendes Akustiksystem A method for amplifying an acoustic signal and corresponding acoustic system
05/11/2006DE102004052912A1 Verfahren zur Reduktion von Störleistungen bei einem Richtmikrophon und entsprechendes Akustiksystem A method of reducing interference power in a directional microphone and corresponding acoustic system
05/10/2006EP1655995A2 Sound diffuser for high fidelity sound reproduction systems
05/10/2006EP1655993A1 Howling margin measuring device
05/10/2006EP1655991A1 Speaker system for video receiver and method for installing speaker
05/10/2006CN2779775Y A system capable of eliminating thermal effect of loudspeaker
05/10/2006CN2779771Y Combined foldable mini sound box
05/10/2006CN1771758A Condenser microphone employing wide band stop filter and having improved resistance to electrostatic discharge
05/10/2006CN1770927A Method for decreasing comb filtering distortion in loudspeaker array
05/10/2006CN1770926A Power supply circuit for sensor, and microphone unit using it
05/10/2006CN1770925A Voice circuit with noise elimination function
05/09/2006US7043434 Integrated speech synthesizer with an automatic identification of speaker connections and identification method used thereof
05/09/2006US7043313 Clock system capable of synchronizing clock frequencies of power processing devices and digital signal processing devices
05/09/2006US7043034 Loudspeaker with single or dual channel input selector and lockout
05/09/2006US7043028 Method and system for using an audio transducer as both an input and output device in full duplex operation
05/09/2006US7043013 Method for adaptive control of multichannel acoustic echo cancellation system and device therefor