H04R 3 - Circuits for transducers

Patents for H04R 3 - Circuits for transducers (18,190)
10/2013
10/10/2013	WO2013150648A1 Vibration signal generation device and method, computer program, recording medium, and sensory audio system
10/10/2013	WO2013150334A1 Apparatus for splitting and outputting multi-channel composite audio signals
10/10/2013	WO2013052327A3 Instability detection and avoidance in a feedback system
10/10/2013	US20130266159 Loudspeaker
10/10/2013	US20130266158 Class-d amplifier with pulse density modulation output feedback for higher performance acoustic echo canceller
10/10/2013	US20130266155 Operation device, reproduction system, operation method of operation device and program
10/10/2013	US20130266154 Contactless audio adapter, and methods
10/10/2013	US20130266152 Synchronizing wireless earphones
10/10/2013	US20130266148 Electronic Devices for Reducing Acoustic Leakage Effects and Related Methods and Computer Program Products
10/10/2013	US20130266146 Headset switches with crosstalk reduction
10/10/2013	DE19926552B4 Kopfhörer mit Mikrofon Headphones with Microphone
10/09/2013	EP2648420A1 Vehicle alarm system sounder device
10/09/2013	EP2647223A1 Dynamic microphone signal mixer
10/09/2013	EP2647222A1 Sound acquisition via the extraction of geometrical information from direction of arrival estimates
10/09/2013	EP2647221A1 Apparatus and method for spatially selective sound acquisition by acoustic triangulation
10/09/2013	EP2647220A2 Advanced communication earpiece device and method
10/09/2013	EP2647219A1 A method for optimizing performance of a multi-transducer earpiece and a multi-transducer earpiece
10/09/2013	EP2647005A1 Apparatus and method for geometry-based spatial audio coding
10/09/2013	CN203233579U LED lamp device with stereo
10/09/2013	CN203233529U Multifunctional electric guitar sound box
10/09/2013	CN203233528U Control circuit applied to repeater tone and volume adjustment
10/09/2013	CN203233527U Volume control circuit applied to repeater
10/09/2013	CN203233526U Digital power amplification system
10/09/2013	CN203233525U Digital audio matrix having power amplifier function
10/09/2013	CN203233520U Head set with approaching sensing module group
10/09/2013	CN103348704A 音频输出设备 An audio output device
10/09/2013	CN103348700A Systems and methods for acoustic echo cancellation with wireless microphones and speakers
10/09/2013	CN103348686A System and method for wind detection and suppression
10/09/2013	CN103347232A Dual-mode earphone circuit and audio output method
10/09/2013	CN103347231A Intelligent controlling detection circuit
10/09/2013	CN103347230A Audio frequency transformer based on infrared transmission
10/09/2013	CN103347229A Audio signal processing device
10/09/2013	CN103346745A Input-stage fully differential operational amplifier of D-type audio power amplifier
10/09/2013	CN102761804B Self-adaptive method and self-adaptive device of voice frequency interface, and electronic signature tool
10/09/2013	CN101981943B Speech processing device
10/09/2013	CN101594563B Sound generating device
10/09/2013	CN101511046B Audio play apparatus and process capable of eliminating popping
10/08/2013	US8553906 Apparatus for enabling karaoke
10/08/2013	US8553905 Always on headwear recording system
10/08/2013	US8553904 Systems and methods for performing sound source localization
10/08/2013	US8553903 Sound-direction detector having a miniature sensor
10/08/2013	US8553899 Output phase modulation entrainment containment for digital filters
10/08/2013	US8553894 Active and passive directional acoustic radiating
10/08/2013	CA2537478C Speaker apparatus for handheld electronic device
10/04/2013	CA2811765A1 User interface device for a bath or shower
10/04/2013	CA2811424A1 Systems and methods for controlling transducers to provide a vibracoustic experience
10/03/2013	WO2013149020A1 Low noise and low power arrangement for playing audio signals
10/03/2013	WO2013148083A1 Systems, methods, and apparatus for producing a directional sound field
10/03/2013	WO2013146602A1 Av amplifier
10/03/2013	WO2013145357A1 Vibration device and portable terminal using same
10/03/2013	WO2013145127A1 Sound reproduction device
10/03/2013	WO2013144609A1 Acoustic source separation
10/03/2013	WO2013143607A1 Microphone with automatic bias control
10/03/2013	WO2013143459A1 Throat-vibration-type microphone and communication hands-free device containing same
10/03/2013	US20130259269 Button-press detection and filtering
10/03/2013	US20130259262 Sound recording device
10/03/2013	US20130259257 Corded audio device with wireless data exchange
10/03/2013	US20130259256 Headphone With Integrated Receiver
10/03/2013	US20130259245 Control method of sound producing, sound producing apparatus, and portable apparatus
10/03/2013	US20130259242 Control of a microphone
10/03/2013	US20130259241 Sound pressure level limiting
10/03/2013	US20130258194 Information Processing Apparatus and Output Control Method
10/02/2013	EP2645740A1 Control method and apparatus for a speaker system and mobile apparatus
10/02/2013	EP2645739A1 Control of a microphone
10/02/2013	EP2645738A1 Signal processing device, signal processing method, and signal processing program
10/02/2013	EP2643981A1 A device comprising a plurality of audio sensors and a method of operating the same
10/02/2013	CN203225871U Simplified audio frequency amplification circuit
10/02/2013	CN203225870U Voice broadcast module
10/02/2013	CN203225869U Multichannel monitoring controller
10/02/2013	CN203225868U Microphone amplifier
10/02/2013	CN103339963A Electronic device
10/02/2013	CN103339962A Electronic device
10/02/2013	CN103339961A Apparatus and method for spatially selective sound acquisition by acoustic triangulation
10/02/2013	CN103339960A Advanced communication earpiece device and method
10/02/2013	CN103338427A MEMS (micro-electromechanical systems) chip and MEMS microphone
10/02/2013	CN103338423A Class-D audio power amplifier mute charging circuit
10/02/2013	CN103338422A Selective denoising device and denoising method thereof
10/02/2013	CN103338419A Method and device for removing headset scream
10/01/2013	US8548306 Audio and video recording and reproduction apparatus for reproducing audio signals having different volume levels
09/2013
09/26/2013	WO2013141768A1 Audio precompensation controller design using a variable set of support loudspeakers
09/26/2013	WO2013139445A2 Method for operating a loudspeaker device, loudspeaker device, and device for noise compensation
09/26/2013	WO2013138927A1 Audio system with integrated power, audio signal and control distribution
09/26/2013	US20130251174 Controlling and manipulating groupings in a multi-zone media system
09/26/2013	US20130251173 Wireless microphone system
09/26/2013	US20130251170 Jointly Optimizing Noise Reduction and Voice Quality in a Mono or Multi-Microphone System
09/26/2013	US20130251163 Audio system with integrated power, audio signal and control distribution
09/26/2013	US20130251159 System for Detecting and Reducing Noise via a Microphone Array
09/26/2013	DE102012005893A1 Verfahren zum Betreiben einer Lautsprechereinrichtung, Lautsprechereinrichtung sowie Vorrichtung zur Lärmkompensation Method for operating a speaker setup, speaker setup and device for noise compensation
09/25/2013	EP2642770A1 Audio reproduction device and method of controlling thereof
09/25/2013	EP2642769A1 A loudspeaker drive circuit for determining loudspeaker characteristics and/or diagnostics
09/25/2013	EP2642768A1 Speech enhancement method, device, program, and recording medium
09/25/2013	DE202009018829U1 Mikrophon für Audioaufnahmen hoher Amplitude Microphone for audio recording high amplitude
09/25/2013	CN203219478U A wireless multimedia digital rotary active loudspeaker with an LED color lamp
09/25/2013	CN203219477U Anti-interference Bluetooth earphone circuit
09/25/2013	CN203219464U 万能fm无线耳麦 Universal fm radio headset
09/25/2013	CN103329570A Audio processing device
09/25/2013	CN103329569A 导航设备 Navigation Equipment
09/25/2013	CN103329568A Variable beamforming with a mobile platform
09/25/2013	CN103329567A Apparatus and method for deriving a directional information and computer program product
09/25/2013	CN103329566A Method and system for speech enhancement in a room

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