Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 3 - Circuits for transducers
Patents for H04R 3 - Circuits for transducers (18,190)
11/2008
11/11/2008US7450728 Parameter control method and program therefor, and parameter setting apparatus
11/11/2008US7450727 Multichannel downmixing device
11/06/2008WO2008134530A2 A capacitive microphone with integrated cavity
11/06/2008WO2007140361A3 Automotive balanced microphone system and method of forming same
11/06/2008WO2007130341A3 Normalization and calibration of microphones in sound- intensity probes
11/06/2008US20080273711 Apparatus, system and method of integrating wireless telephones in vehicles
11/06/2008US20080273120 Single supply direct drive amplifier
11/06/2008DE102004034028B4 Einrichtung zur Speicherung von elektrischer Energie Means for storing electric energy
11/05/2008EP1988690A1 Acoustic device
11/05/2008EP1988661A1 Communication adapter layer system, method and device for obtaining network element information
11/05/2008EP1386415A4 Parametric virtual speaker and surround-sound system
11/05/2008CN101300894A Voice signal transmitting/receiving apparatus
11/04/2008US7448057 Audiovisual reproduction system
11/04/2008US7447318 System for using digital signal processing to compensate for power compression of loudspeakers
11/04/2008US7447316 Speaker system
10/2008
10/30/2008WO2008128989A1 Voice and position localization
10/30/2008WO2008090342A3 Ambient noise reduction
10/30/2008WO2007108929A3 Two-wire microphone circuit
10/30/2008US20080267423 Object sound extraction apparatus and object sound extraction method
10/30/2008CA2683824A1 Voice and position localization
10/29/2008EP1986466A1 Sound tuning method and apparatus
10/29/2008CN201142759Y Loudspeaker
10/29/2008CN201142757Y Vari-directional microphone using analogue signal processor
10/29/2008CN101297588A A device for and a method of audio data processing
10/29/2008CN101296529A Sound tuning method and apparatus
10/28/2008US7443990 Voltage biased capacitor circuit for a loudspeaker
10/28/2008US7443989 Adaptive beamforming method and apparatus using feedback structure
10/28/2008US7442174 Simulated wave massage
10/25/2008CA2628524A1 Sound tuning method
10/23/2008WO2008126496A1 Acoustic processing system and method for electronic device and mobile telephone terminal
10/23/2008WO2008126343A1 Sound collecting method and device
10/23/2008WO2008126130A1 Level adjusting device, signal processor, av processor and program
10/23/2008WO2008126128A1 Level regulator, signal processor, av processor and program
10/23/2008WO2008125141A1 Device having an electro-acoustic converter
10/23/2008WO2008092111A3 Drivers and methods for driving a load
10/23/2008US20080260181 Reducing acoustic coupling to microphone on printed circuit board
10/23/2008US20080260179 Active loudspeaker
10/23/2008US20080260175 Dual-Microphone Spatial Noise Suppression
10/23/2008US20080260044 Fft-based multichannel video receiver
10/23/2008US20080259950 Method for the transmission and reception of data contents in a communications network, corresponding computer program product, storage means and devices
10/23/2008DE102008019660A1 Geräuschreduzierungsvorrichtung und Audiowiedergabevorrichtung Noise reduction device and audio reproduction apparatus
10/22/2008EP1983799A1 Acoustic localization of a speaker
10/22/2008EP1983691A1 Method for the transmission and reception of data contents in a communications network, corresponding computer program product, storage means and devices
10/22/2008EP1982558A2 Efficient audio reproduction
10/22/2008EP1982400A1 Power supply for limited power sources and audio amplifier using power supply
10/22/2008EP1621046B1 Loudspeaker system for virtual sound synthesis
10/22/2008EP1186156B1 Adaptability to multiple hands-free communication accessories
10/22/2008CN201138859Y Movable power amplifier
10/22/2008CN101292567A Noise control device
10/22/2008CN101291208A Method for the transmission and reception of data contents in a communications network and corresponding devices
10/21/2008US7440891 Speech processing method and apparatus for improving speech quality and speech recognition performance
10/16/2008WO2008124786A2 Always on headwear recording system
10/16/2008WO2008123315A1 Signal processing device
10/16/2008WO2008123062A1 Echo canceller
10/16/2008WO2008122930A1 Sound enhancement in closed spaces
10/16/2008WO2008100055A3 Microphone amplifier
10/16/2008WO2007121446A3 Method and device for tinnitus masking
10/16/2008US20080253589 Ultrasound Imaging System with Voice Activated Controls Using Remotely Positioned Microphone
10/16/2008US20080253583 Always on headwear recording system
10/16/2008DE102008013762A1 Datenwiedergabevorrichtung und Datenwiedergabeverfahren A data reproducing apparatus and data reproducing method
10/16/2008CA2626622A1 Systems and methods for controlling audio loudness
10/15/2008EP1981172A2 Wireless receiving apparatus and electronic appliance
10/15/2008EP1749420A4 Audio apparatus and method
10/15/2008CN201134909Y Minimized loudspeaker integrated system
10/15/2008CN101288338A Voice reproducing method and reproducer using line array speaker unit
10/15/2008CN101288335A Method and apparatus for improving noise discrimination using enhanced phase difference value
10/15/2008CN101288334A Method and apparatus for improving noise discrimination using attenuation factor
10/15/2008CN101287301A Hearing instrument with linearized output stage
10/15/2008CN101287300A Audio apparatus, playing device and method to control self-closing of the audio apparatus
10/14/2008US7436971 Mixing signal-path setting apparatus and program
10/14/2008US7436967 Apparatus and method of limiting power applied to a loudspeaker
10/14/2008US7435228 High fidelity hearing restoration
10/14/2008CA2563962C Wireless headset having improved rf immunity to rf electromagnetic interference produced from a mobile wireless communications device
10/09/2008WO2008120436A2 Voice conference apparatus providing microphone directivity to reduce acoustic coupling
10/09/2008US20080247571 Wireless audio transfer system, wireless microphone, audio transmitting apparatus, audio receiving apparatus, image pickup apparatus, recording apparatus, and audio mixer
10/09/2008US20080247567 Directional Audio Capturing
10/09/2008US20080247566 Sound source localization system and sound source localization method
10/09/2008US20080247565 Position-Independent Microphone System
10/09/2008US20080247562 Communication system using short range radio communication headset
10/09/2008DE102007014902A1 Programmgesteuertes Haushaltgerät mit einer Einrichtung zur Klangausgabe Program-controlled domestic appliance with a device for sound output
10/08/2008EP1978780A2 Sound output device
10/08/2008EP1978778A1 Electronic device and sound reproducing method
10/08/2008EP1977626A1 Method for recording and reproducing a sound source with time-variable directional characteristics
10/08/2008EP1380187B1 Directional controller and a method of controlling a hearing aid
10/08/2008EP1192836A4 Microphone with range switching
10/08/2008CN201131052Y Circuit for automatically controlling output of external speaker
10/08/2008CN101282591A Buzzer driving circuit
10/08/2008CN100425102C Condenser microphone employing wide band stop filter and having improved resistance to electrostatic discharge
10/07/2008US7433821 Methods and systems for intelligibility measurement of audio announcement systems
10/07/2008US7433477 Audio superpositioning
10/07/2008US7433475 Electronic device, video camera apparatus, and control method therefor
10/02/2008WO2008117337A1 Level regulator, av processor and program
10/02/2008US20080243282 Setting audio parameters in a digital signal processor in an electronic device, and electronic device
10/02/2008US20080240484 Device For and Method of Generating a Virbration Source-Driving-Signal
10/02/2008US20080240471 Electronic device including internal microphone array
10/02/2008US20080240470 Microphone
10/02/2008US20080240463 Enhanced Beamforming for Arrays of Directional Microphones
10/02/2008US20080240462 Pattern detection circuitry
10/01/2008EP1974583A1 Method for determining the position of a moving part in an electroacoustic transducer
10/01/2008EP1532734A4 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
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