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