| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 05/05/2009 | US7529376 Directional speaker control system |
| 05/02/2009 | CA2749229A1 Adjusting acoustic speaker output based on an estimated degree of seal of an ear about a speaker port |
| 04/30/2009 | WO2009054265A1 Audio power amplifier |
| 04/30/2009 | WO2009053791A1 Noise cancellation circuit for electronic device |
| 04/30/2009 | US20090110213 Programmable integrated microphone interface circuit |
| 04/30/2009 | US20090110212 Audio Transmission System and Communication Conference Device |
| 04/30/2009 | US20090110209 System for comfort noise injection |
| 04/30/2009 | DE102007051402A1 Lautsprechersystem und Verfahren zum Betreiben des Lautsprechersystems Speaker system and method of operating the speaker system |
| 04/29/2009 | EP2053875A2 Speaker system and method of operating the speaker system |
| 04/29/2009 | EP1599742B1 Method for detection of own voice activity in a communication device |
| 04/29/2009 | EP1221159A4 Method and apparatus for performing level compensation for an input signal |
| 04/29/2009 | CN201230368Y Electronic tube and solid electronic sound division mixing power amplifier |
| 04/29/2009 | CN201230078Y Connector having echo eliminating function |
| 04/29/2009 | CN101420491A Method, apparatus and controller for ear microphone denoising |
| 04/29/2009 | CN100484259C 紧凑的环绕声系统 Compact surround sound system |
| 04/29/2009 | CN100484177C Stereo microphone processing for teleconferencing |
| 04/29/2009 | CN100483190C Audio signal processing circuit and a display device incorporating the same |
| 04/28/2009 | US7526094 Normalization and calibration of microphones in sound-intensity probes |
| 04/28/2009 | US7525376 Power amplifier with output voltage compensation |
| 04/28/2009 | US7525096 Miniature camera module with lens containing image sensor |
| 04/23/2009 | WO2009052444A2 Microphone array processor based on spatial analysis |
| 04/23/2009 | WO2009051197A1 Echo suppressing method and device |
| 04/23/2009 | WO2009051132A1 Signal processing system, device and method used in the system, and program thereof |
| 04/23/2009 | WO2009050909A1 Recoilless speaker unit |
| 04/23/2009 | WO2009050487A1 Acoustic source separation |
| 04/23/2009 | WO2009023703A3 Auto bias microphone system for use with multiple loads and method of forming same |
| 04/23/2009 | US20090103749 Microphone Array Processor Based on Spatial Analysis |
| 04/23/2009 | US20090103741 Method of correction of acoustic parameters of electro-acoustic transducers and device for its realization |
| 04/23/2009 | DE112007001438T5 Verfahren und Vorrichtung zur Einstellung der Audiolautstärke zur Vermeidung eines Gehörverlusts oder von Gehörschäden Method and apparatus for adjusting the audio volume to avoid hearing loss or hearing loss |
| 04/23/2009 | DE102007049407A1 Flat loudspeaker radiation characteristics controlling method, involves compensating sound signals that are emitted from loudspeaker by phase shifted compensation signal in moment of passage via another loudspeaker |
| 04/23/2009 | DE102007049245A1 Digitales Mikrofon und Stromversorgungseinheit für ein digitales Mikrofon Digital Microphone and Power Supply Unit for Digital Microphone |
| 04/22/2009 | EP2051543A1 Automatic bass management |
| 04/22/2009 | EP2051542A1 Sound generating/collecting device |
| 04/22/2009 | EP2051541A1 Microphone device |
| 04/22/2009 | EP2050305A1 Kick gate |
| 04/22/2009 | EP2050304A1 Improvements to systems for acoustic diffusion |
| 04/22/2009 | CN101416235A A device for and a method of processing data |
| 04/22/2009 | CN100481722C System and method for enhancing delivered sound in acoustical virtual reality |
| 04/21/2009 | US7523038 Voice controlled system and method |
| 04/21/2009 | US7522737 Microphones with equal sensitivity |
| 04/21/2009 | US7522736 Systems and methods for microphone localization |
| 04/21/2009 | US7522730 Universal microphone for secure radio communication |
| 04/16/2009 | WO2009047968A1 Noise cancel headphone |
| 04/16/2009 | WO2009047871A1 Echo suppression system, echo suppression method, echo suppression program, echo suppressor, sound output device, audio system, navigation system, and mobile body |
| 04/16/2009 | WO2009047858A1 Echo suppression system, echo suppression method, echo suppression program, echo suppression device, sound output device, audio system, navigation system, and moving vehicle |
| 04/16/2009 | US20090097671 Distributed Acoustic Conversation Shielding System |
| 04/16/2009 | US20090097670 Method, medium, and apparatus for extracting target sound from mixed sound |
| 04/16/2009 | DE202008016015U1 Combo-Verstärker Combo Amplifier |
| 04/16/2009 | DE102007046593A1 Hörer und Verfahren zur aktiven Lärmkompensation Receiver and method for active noise compensation |
| 04/15/2009 | EP2048659A1 Gain and spectral shape adjustment in audio signal processing |
| 04/15/2009 | EP2047712A2 Bluetooth microphone array |
| 04/15/2009 | EP2047711A1 Electroacoustical transducing |
| 04/15/2009 | CN201222790Y Multimedia horn apparatus with heat-dissipating function |
| 04/15/2009 | CN201222746Y 网络功率放大器 Network Power Amplifier |
| 04/15/2009 | CN101411063A Filter adaptive frequency resolution |
| 04/15/2009 | CN101409855A Earphone adapting apparatus |
| 04/15/2009 | CN100478691C Capacitance determining circuit and capacitance determining method |
| 04/14/2009 | US7519188 Electroacoustical transducing |
| 04/14/2009 | US7519187 Array speaker system |
| 04/14/2009 | US7519186 Noise reduction systems and methods for voice applications |
| 04/14/2009 | US7519175 Integral microphone and speaker configuration type two-way communication apparatus |
| 04/14/2009 | US7518055 System and method for intelligent equalization |
| 04/09/2009 | WO2009044872A1 Audio processing system |
| 04/09/2009 | WO2009044749A1 Sound emission and collection device |
| 04/09/2009 | WO2009044562A1 Noise extraction device using microphone |
| 04/09/2009 | WO2009043994A1 Sound reproduction system comprising a loudspeaker enclosure with ports, and associated processing circuit |
| 04/09/2009 | WO2009017718A3 Flexible sheet audio-video device |
| 04/09/2009 | WO2009007322A3 Sound reproduction device and method for the calibration of a sound reproduction device |
| 04/09/2009 | WO2007052269A3 Wireless microphone system for high quality sound |
| 04/09/2009 | WO2005125267A3 Airborne collection of acoustic data using an unmanned aerial vehicle |
| 04/09/2009 | US20090092266 Wireless audio system capable of receiving commands or voice input |
| 04/08/2009 | EP2044802A2 Multiple microphone system |
| 04/08/2009 | EP2044689A1 A method of limiting the maximum permitted sound volume in an earphone, and an earphone for carrying out the method |
| 04/08/2009 | CN201216141Y Bird expelling device of supersonic wave |
| 04/08/2009 | CN101405924A Power supply for limited power sources and audio amplifier using power supply |
| 04/08/2009 | CN100477762C Image display device and method |
| 04/08/2009 | CN100477705C Audio enhancement system, system equipped with the system and distortion signal enhancement method |
| 04/07/2009 | US7516065 Apparatus and method for correcting a speech signal for ambient noise in a vehicle |
| 04/07/2009 | US7515721 Self-descriptive microphone array |
| 04/07/2009 | US7515719 Method and apparatus to create a sound field |
| 04/02/2009 | WO2009041717A1 Electronic device |
| 04/02/2009 | WO2009041012A1 Noise control system |
| 04/02/2009 | WO2009039648A1 Acoustic transducer |
| 04/02/2009 | WO2009039597A1 Audio equipment |
| 04/02/2009 | WO2009021025A3 Non-contact ethernet link with bidirectional transducer |
| 04/02/2009 | US20090086999 Acoustic Transducer and Microphone Using the Same |
| 04/02/2009 | US20090086993 Sound source direction detecting apparatus, sound source direction detecting method, and sound source direction detecting camera |
| 04/02/2009 | US20090086992 Microphone circuit and charge amplifier thereof |
| 04/02/2009 | DE102008021500A1 Lautsprecher Speaker |
| 04/02/2009 | DE102007037659A1 Verfahren zum Betrieb eines Hörgerätesystems und Hörgerätesystem Method for operating a hearing aid system and hearing aid system |
| 04/02/2009 | DE102005020317B4 Automatische Verstärkungseinstellung bei einem Hörhilfegerät Automatic gain adjustment for a hearing aid |
| 04/01/2009 | EP2043384A1 Adaptive bass management |
| 04/01/2009 | EP2043383A1 Active noise control using bass management |
| 04/01/2009 | EP2041995A1 Miniature electro-acoustic transducer with integrated coupling coil |
| 04/01/2009 | EP1600035B1 Sound beam loudspeaker system |
| 04/01/2009 | CN201216024Y Microphone set device having chairman function |
| 04/01/2009 | CN201216021Y Digital contact type vibration acoustic pickup |
| 04/01/2009 | CN201216015Y Microphone having feedback inhibition function |
| 04/01/2009 | CN201216014Y Microphone with volume control function |
| 04/01/2009 | CN201216013Y Mute circuit for earphone |