H04R 3 - Circuits for transducers

Patents for H04R 3 - Circuits for transducers (18,190)
06/2011
06/01/2011	CN102081925A Speech detector
06/01/2011	CN101643098B Energy-saving automatically-warning battery theft-preventing alarm device and control method thereof
06/01/2011	CN101587674B Outdoor directional sound advertising device
06/01/2011	CN101014209B Full band natural sound effect audio directional loudspeaker
05/2011
05/31/2011	US7953460 Mobile terminal having dual display unit and method of controlling dual speaker and dual microphone thereof
05/31/2011	US7953233 Synchronous detection and calibration system and method for differential acoustic sensors
05/31/2011	US7953232 Guiding device and method of controlling the same
05/31/2011	US7953228 Automatic audio systems for fire detection and diagnosis, and crew and person locating during fires
05/26/2011	WO2011061830A1 Digital signal processing device and digital signal processing method
05/26/2011	US20110123044 Method and Apparatus for Suppressing Wind Noise
05/26/2011	US20110123043 Micro-Electromechanical System Microphone
05/26/2011	US20110123037 Sound masking system and method using vibration exciter
05/25/2011	EP2326017A1 Interactive sound reproducing
05/25/2011	EP2324642A1 Method and apparatus for rendering ambient signals
05/25/2011	EP2324618A1 Method and apparatus for providing audible, visual or tactile sidetone feedback notification to a user of a communication device with multiple microphones
05/25/2011	EP2324476A1 Multiple microphone switching and configuration
05/25/2011	EP1062839B1 Improved signal localization arrangement
05/25/2011	CN201846469U Electronic dictionary audio circuit capable of improving tone quality
05/25/2011	CN201846468U Key input module
05/25/2011	CN201846467U Multi-channel sound controller
05/25/2011	CN201846466U USB loudspeaker box having function of eliminating low frequency noise
05/25/2011	CN1535555B Acoustic devices, system and method for cardioid beam with desired null
05/25/2011	CN102077609A Acoustic processing apparatus
05/25/2011	CN102077608A Tuning sound feed-back device
05/25/2011	CN102077607A A method of combining at least two audio signals and a microphone system comprising at least two microphones
05/25/2011	CN102077277A 音频处理 Audio Processing
05/25/2011	CN102075831A Signal processing apparatus, signal processing method, and program therefor
05/25/2011	CN102075830A signal output device and signal output method
05/25/2011	CN102075829A Volume adjusting system
05/25/2011	CN102073201A Image display device and method of controlling the same
05/24/2011	US7949522 System for suppressing rain noise
05/19/2011	WO2011059144A1 Electrostatic speaker
05/19/2011	US20110116657 Electrostatic transducer loudspeaker
05/19/2011	US20110116656 Pulse code modulation conversion circuit and method
05/19/2011	US20110116651 Distributed sound enhancement
05/19/2011	US20110116649 Distributed sound enhancement
05/19/2011	US20110116620 Distributed sound enhancement
05/19/2011	DE112009001003T5 Geräuschunterdrückungssystem mit zwei Mikrophonen Noise reduction system with two microphones
05/19/2011	DE102010040732A1 Dreipegel-PWM-Verstärker und Audioverarbeitungsvorrichtung Three-level PWM amplifiers and audio processing apparatus
05/19/2011	DE102009053385A1 Audiowiedergabesystem für ein Fahrzeug The audio reproduction system for a vehicle
05/18/2011	EP2321979A1 Ribbon loudspeaker module and amplifier therefore
05/18/2011	EP2321978A1 A microphone array system and method for sound acquisition
05/18/2011	EP2321815A1 Emergency event detector
05/18/2011	CN201839416U Noise reducing system
05/18/2011	CN201839411U MP3 (Moving Picture Experts Group Audio Layer-3) player with earphone
05/18/2011	CN201839405U Noise cancelling and sounding device
05/18/2011	CN201839344U Mobile terminal capable of adjusting volume automatically
05/18/2011	CN1985497B Information outputting device, information output controlling method
05/18/2011	CN1933507B Mobile terminal device
05/18/2011	CN102067626A Howling canceller and howling cancellation method
05/18/2011	CN102067576A Method and apparatus for providing audible, visual or tactile sidetone feedback notification to a user of a communication device with multiple microphones
05/18/2011	CN102065352A Device and method for eliminating POP noise of CAPLESS audio power amplifier
05/18/2011	CN102065351A Audio driving circuit
05/18/2011	CN102065350A Method, system and earphone for intelligently controlling multimedia playing
05/18/2011	CN102065160A Circuit for being externally connected with loudspeaker by utilizing mobile phone
05/18/2011	CN101099409B Sound receiver
05/18/2011	CN101061744B Audio signal enhancement
05/17/2011	US7945060 Parameter display method and program therefor, and parameter setting apparatus
05/17/2011	US7945059 Speaker device, sound reproducing method, and speaker control device
05/17/2011	US7945056 Listening device with two or more microphones
05/12/2011	WO2011054671A1 Microphone assembly
05/12/2011	WO2011054166A1 Audio-source wire capable of generating gain and removing noise
05/12/2011	US20110110536 Microphone Assembly with Integrated Self-Test Circuitry
05/12/2011	US20110110535 Carbon nanotube speaker
05/12/2011	US20110110531 Apparatus, method and computer program for localizing a sound source
05/12/2011	US20110110528 Hearing device with simulation of a hearing loss and method for simulating a hearing loss
05/11/2011	EP2320683A2 Sound tuning method and apparatus
05/11/2011	EP2320678A1 Microphone device with accelerometer for vibration compensation
05/11/2011	EP2320677A1 Recorder/reproducer
05/11/2011	EP2320676A1 Method, communication device and communication system for controlling sound focusing
05/11/2011	EP2320675A1 Audio processing device
05/11/2011	EP2320673A1 Sound receiver
05/11/2011	EP2319251A1 Electronic device directional audio-video capture
05/11/2011	EP0969692B1 Device and method for processing speech
05/11/2011	CN201830445U Vehicle-mounted multimedia audio device system
05/11/2011	CN201830444U Vehicular sound device
05/11/2011	CN201830434U Coupled control device for telephone incoming call signal
05/11/2011	CN201830433U Computer sound turnoff device
05/11/2011	CN201830222U Intelligent on-off control device of sound box
05/11/2011	CN201824780U Interesting three-dimensional picture
05/11/2011	CN1619951B Automotive audio controller with vibration sensor
05/11/2011	CN102057567A Audio signal processing device and audio signal processing method
05/11/2011	CN102056068A A method for monitoring the influence of ambient noise on stochastic gradient algorithms during identification of linear time-invariant systems
05/11/2011	CN102056060A Piezoelectric speaker and drive amplifying system adopting same
05/11/2011	CN102056054A Sound playing device and compensation method thereof
05/11/2011	CN102056053A Multi-microphone audio mixing method and device
05/11/2011	CN102056052A Audio switching circuit and mobile terminal with same
05/11/2011	CN102056051A Electronic device, electronic system, and method for processing signals from an audio accessory thereof
05/11/2011	CN102056050A Active noise cancellation
05/11/2011	CN102056049A Audio circuit of clock
05/11/2011	CN102056048A Low-noise video and audio system
05/11/2011	CN102056042A Intelligent adjusting method and device for prompt tone of electronic device
05/11/2011	CN102056037A Acoustical coupling apparatus
05/11/2011	CN102048529A Pulse oxyhemoglobin saturation measuring device with voice broadcasting function
05/11/2011	CN101639986B Warning system for avoiding vehicle rear-end collision
05/11/2011	CN101340738B Super large power electromagnetic suction push-pull driving sound source
05/10/2011	US7940943 Speaker driving apparatus
05/10/2011	US7940942 Self-identifying microphone
05/05/2011	WO2011053469A1 Self steering directional loud speakers and a method of operation thereof
05/05/2011	US20110103616 Tuning sound feed-back device

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