| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 07/29/2009 | CN101494809A Sound play device |
| 07/29/2009 | CN100521818C Multichannel pulsewidth modulator |
| 07/29/2009 | CN100521817C Method for setting loudspeaker array by second residual sequence and apparatus thereof |
| 07/28/2009 | US7567678 Microphone array method and system, and speech recognition method and system using the same |
| 07/28/2009 | CA2402704C System and method of producing direct audio from a power supply |
| 07/23/2009 | WO2009090741A1 Speaker characteristic correction device, speaker characteristic correction method, and speaker characteristic correction program |
| 07/23/2009 | US20090185697 Portable sound recorder |
| 07/23/2009 | DE202009004108U1 Gerichteter Monitorlautsprecher Directional monitor speakers |
| 07/22/2009 | EP2081403A1 Method and device for detecting a displacement and movement of a sound producing unit of a woofer |
| 07/22/2009 | EP2080930A2 Damping apparatus for reducing vibration of automobile body |
| 07/22/2009 | EP2080929A2 Damping apparatus for reducing vibration of automobile body |
| 07/22/2009 | EP2080928A2 Damping apparatus for reducing vibration of automobile body |
| 07/22/2009 | EP2080405A1 Nonlinear signal processing |
| 07/22/2009 | EP1190597B1 Voice-to-remaining audio (vra) interactive hearing aid & auxiliary equipment |
| 07/22/2009 | CN101491112A Miniature electro-acoustic transducer with integrated coupling coil |
| 07/22/2009 | CN101489165A Audio frequency compensation apparatus |
| 07/22/2009 | CN101489164A Self-adaptive sounding method and apparatus for electric sounding device |
| 07/22/2009 | CN100517726C Thin film circuit substrate, piezoelectric speaker device, display device, and sound source built-in type display device |
| 07/21/2009 | US7564983 Audio playback device capable of independent operations in dual modes |
| 07/21/2009 | US7564981 Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same |
| 07/21/2009 | CA2464025C System and method for transmitting audio via a serial data port in a hearing instrument |
| 07/16/2009 | WO2009087772A1 Speaker line inspection device |
| 07/16/2009 | US20090180655 Package for mems microphone |
| 07/16/2009 | US20090180644 Integrated and programmable microphone bias generation |
| 07/16/2009 | US20090180643 Electronic device circuitry for communicating with accessories |
| 07/16/2009 | CA2711597A1 Embedded audio system in distributed acoustic sources |
| 07/15/2009 | EP2079175A2 Digital mixer and digital mixing method |
| 07/15/2009 | CN100515120C Super low noise hearing aid circuit |
| 07/14/2009 | US7562145 Application instance level workload distribution affinities |
| 07/14/2009 | US7561934 Audio signal processing device |
| 07/14/2009 | US7561703 Audio system, audio apparatus, and method for performing audio signal output processing |
| 07/14/2009 | US7561701 Method and apparatus for identifying the direction of incidence of an incoming audio signal |
| 07/14/2009 | US7561700 Auto-adjust noise canceling microphone with position sensor |
| 07/09/2009 | WO2009050487A8 Acoustic source separation |
| 07/09/2009 | US20090175484 Embedded audio system in distributed acoustic sources |
| 07/09/2009 | US20090175462 Noise Reduction Systems and Methods for Voice Applications |
| 07/09/2009 | DE202008017352U1 Adaptive Rauscherzeugungsvorrichtung Adaptive noise generating device |
| 07/08/2009 | EP2077059A1 Method for operating a hearing aid, and hearing aid |
| 07/08/2009 | EP2007168A9 Voice conference device |
| 07/08/2009 | EP1751854A4 Audio amplifier and speaker incorporating audio amplifier |
| 07/08/2009 | CN201270581Y Noise eliminating circuit |
| 07/08/2009 | CN201270580Y Earphone mute circuit and television set with the same |
| 07/08/2009 | CN101480064A Sound generating/collecting device |
| 07/08/2009 | CN101480063A Echo suppressor |
| 07/08/2009 | CN100512510C Device and method for processing speech |
| 07/08/2009 | CN100512509C Method for designing digital audio precompensation filter and system thereof |
| 07/08/2009 | CN100508920C Hearing system |
| 07/07/2009 | US7558637 Digital mixer capable of programming mixer configuration, mixer configuration editing apparatus, and control application program to control digital mixer |
| 07/07/2009 | US7558392 Signal switching apparatus and program |
| 07/07/2009 | US7558391 Compander architecture and methods |
| 07/07/2009 | US7558390 Listening device |
| 07/07/2009 | US7558156 Acoustic location and enhancement |
| 07/07/2009 | US7557590 Capacitance detection circuit and capacitance detection method |
| 07/07/2009 | CA2506439C A parallel gsc structure for adaptive beamforming under equalization constraints |
| 07/07/2009 | CA2440233C Directional controller and a method of controlling a hearing aid |
| 07/02/2009 | WO2009082765A1 Method and system for message alert and delivery using an earpiece |
| 07/02/2009 | WO2009082083A1 Apparatus and method for transmitting sound through nonlinear media |
| 07/02/2009 | WO2009081190A1 Frequency control based on device properties |
| 07/02/2009 | WO2009066906A3 Apparatus for sound having multiple stereo imaging |
| 07/02/2009 | US20090169033 Microphone module with electromagnetic interference shielding means |
| 07/02/2009 | DE102008057673A1 Acoustic signal outputting device for vehicle, has signal sources decoupled from each other by decoupling network and electrically connected with moving coil of double-coil loudspeaker, where network is formed by capacitors and resistors |
| 07/02/2009 | DE102007063344A1 Audio output stage for electrostatic flat surface loudspeaker in motor vehicle, has matching circuit including transformer and arranged between audio output stage for electrodynamic loudspeaker and electrostatic flat surface loudspeaker |
| 07/01/2009 | EP2076060A2 Audio signal receiving apparatus, audio signal receiving method and audio signal transmission system |
| 07/01/2009 | CN101472209A Apparatus for processing audio |
| 07/01/2009 | CN101472171A Data conversion system |
| 07/01/2009 | CN100508650C Apparatus and method for generating, storing, or editing an audio representation of an audio scene |
| 07/01/2009 | CN100508649C Audio frequency magnetic conducted connection and connector thereof |
| 06/30/2009 | US7555116 Real time processing and management method for cancelling out the echo between a loudspeaker and a microphone of a computer terminal |
| 06/30/2009 | CA2406754C Method and apparatus for noise reduction, particularly in hearing aids |
| 06/25/2009 | WO2009078184A1 Piezoelectric sound transducer |
| 06/25/2009 | WO2009078176A1 Video/audio output system |
| 06/25/2009 | WO2009078105A1 Noise suppressing device, noise suppression controller, noise suppressing method, and noise suppressing program |
| 06/25/2009 | WO2009052444A3 Microphone array processor based on spatial analysis |
| 06/25/2009 | US20090161890 Micro-electro-mechanical systems (mems) capacitive sensing circuit |
| 06/25/2009 | US20090161880 Method and apparatus to create a sound field |
| 06/25/2009 | DE102008057234A1 Device for amplifying audio signal by digital circuit amplifier and reproduction by one or multiple loudspeaker elements, has digital circuit amplifier whose regulating notch is provided with rectified unstabilized supply voltage |
| 06/24/2009 | EP2072852A2 Damping apparatus for reducing vibration of automobile body |
| 06/24/2009 | EP1784816A4 Headset for separation of speech signals in a noisy environment |
| 06/24/2009 | EP1691344B1 Speech recognition system |
| 06/24/2009 | CN101467467A A device for and a method of generating audio data for transmission to a plurality of audio reproduction units |
| 06/24/2009 | CN101466056A Method and device for eliminating noise of microphone |
| 06/24/2009 | CN101466055A Minitype microphone array device and beam forming method thereof |
| 06/24/2009 | CN100504840C Method for fast dynamic estimation of background noise |
| 06/23/2009 | US7552050 Speech recognition system and method utilizing adaptive cancellation for talk-back voice |
| 06/23/2009 | US7551742 Acoustic signal-processing apparatus and method |
| 06/23/2009 | US7551417 Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device |
| 06/18/2009 | WO2009075241A1 Image capturing apparatus |
| 06/18/2009 | WO2009075085A1 Sound collecting device, sound collecting method, sound collecting program, and integrated circuit |
| 06/18/2009 | US20090154729 Filter Circuit for an Electret Microphone |
| 06/18/2009 | US20090154715 Apparati and methods for sound transduction with minimal interference from background noise and minimal local acoustic radiation |
| 06/18/2009 | DE102008004674A1 Signalaufnahme mit variabler Richtcharakteristik Signal recording with variable directional |
| 06/17/2009 | EP2071813A1 Hands-free telephone conversation apparatus |
| 06/17/2009 | EP1518180A4 Identification system and method for recognizing any one of a number of different types of devices |
| 06/17/2009 | EP0951800B1 Six-axis surround sound processor with automatic balancing and calibration |
| 06/17/2009 | CN101461255A Method and apparatus for adjusting audio volume to prevent hearing loss or damage |
| 06/17/2009 | CN101459865A Bass enhancement for audio |
| 06/16/2009 | US7548626 Detection and control of diaphragm collapse in condenser microphones |
| 06/11/2009 | WO2009071896A1 Apparatus for accurate ambient noise sensing and reduction in the presence of wind |
| 06/11/2009 | WO2008146082A3 Bluetooth microphone array |
| 06/11/2009 | US20090149722 Systems and methods to provide two-way communications |