| Patents for H04R 3 - Circuits for transducers (18,190) |
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| 05/11/2004 | US6733456 Off-aperture electrical connection for ultrasonic transducer |
| 05/06/2004 | WO2004039123A1 Dynamic binaural sound capture and reproduction |
| 05/06/2004 | WO2004038434A2 Potential fixing device, potential fixing method, and capacitance mearuing instrument |
| 05/06/2004 | WO2003021764A3 Method and circuit for creating a sub-harmonic of a periodic signal |
| 05/06/2004 | WO2003020006A3 Circuit and method for acoustic source directional pattern determination utilizing two microphones |
| 05/06/2004 | US20040086140 Apparatus and method for driving an audio speaker |
| 05/06/2004 | US20040086128 Method and apparatus for creating a virtual third channel in a two-channel apmlifier |
| 05/06/2004 | EP1416767A1 Device for monitoring musical performances and/or audio signals from video games or similar |
| 05/06/2004 | EP1415506A2 Sound processing system that exhibits arbitrary gradient response |
| 05/06/2004 | EP1415505A1 Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors |
| 05/06/2004 | EP1415504A2 Solid angle cross-talk cancellation for beamforming arrays |
| 05/06/2004 | EP1415503A2 Sound processing system including wave generator that exhibits arbitrary directivity and gradient response |
| 05/06/2004 | EP1415502A2 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in multiple wave sound environment |
| 05/06/2004 | EP1415393A2 Method for processing an input signal for producing an output signal and an application of said method in hearing aids and devices |
| 05/06/2004 | DE10242700A1 Rückkopplungskompensator in einem akustischen Verstärkungssystem, Hörhilfsgerät, Verfahren zur Rückkopplungskompensation und Anwendung des Verfahrens in einem Hörhilfsgerät Feedback compensator in an acoustic amplifying system, the hearing aid device, method for feedback compensation and application of the method in a hearing aid |
| 05/06/2004 | CA2502585A1 Dynamic binaural sound capture and reproduction |
| 05/05/2004 | CN1494762A Audio reproducing apparatus and method |
| 05/05/2004 | CN1494355A Replay apparatus |
| 05/05/2004 | CN1494353A Sounder signal processor and its method |
| 05/04/2004 | US6731763 Audio A/D converter using frequency modulation |
| 05/04/2004 | US6731760 Adjusting a loudspeaker to its acoustic environment: the ABC system |
| 05/04/2004 | US6731347 Method for switching signal input based on device capability |
| 04/29/2004 | WO2004036951A2 Microphone for simultaneous noise sensing and speech pickup |
| 04/29/2004 | WO2002045073A8 Systems and methods for controlling a phased array focused ultrasound system |
| 04/29/2004 | US20040081327 Hearing aid, a method of controlling a hearing aid, and a noise reduction system for a hearing aid |
| 04/29/2004 | US20040081099 Identification system and method for recognizing any one of a number of different types of devices |
| 04/28/2004 | EP1414268A2 Method for adjusting and operating a hearing aid and a hearing aid |
| 04/28/2004 | EP1414267A2 Miniaturized loudspeakers |
| 04/28/2004 | EP1413171A2 Method for at least two audio signals |
| 04/28/2004 | EP1413169A1 Cardioid beam with a desired null based acoustic devices, systems and methods |
| 04/28/2004 | EP1413168A2 Sound reinforcement system having an echo suppressor and loudspeaker beamformer |
| 04/28/2004 | EP1413167A2 Sound reinforcement system having an multi microphone echo suppressor as post processor |
| 04/28/2004 | EP1230784B1 Echo attenuating method and device |
| 04/28/2004 | CN1493071A Voice command identifier for voie recognition system |
| 04/28/2004 | CN1492393A Method and device for separating mixed signals |
| 04/28/2004 | CN1492341A Reproducing device, output device and method for control power consumption |
| 04/22/2004 | WO2004034735A1 Equalizable active electroacoustic device for panels, and method of converting the panels and assembling the devices |
| 04/22/2004 | WO2004034734A1 Array device and portable terminal |
| 04/22/2004 | WO2003034781A3 Bass frequency amplifying apparatus |
| 04/22/2004 | US20040076305 Microphone for simultaneous noise sensing and speech pickup |
| 04/22/2004 | US20040076304 Standing wave reducing |
| 04/22/2004 | US20040076301 Dynamic binaural sound capture and reproduction |
| 04/22/2004 | DE20319202U1 Sound volume regulation method for capacitor microphone involves using a voltage divider having a potentiometer for varying amplitude of output signal |
| 04/22/2004 | CA2490872A1 Equalizable active electroacoustic device for panels, and method of converting the panels and assembling the devices |
| 04/21/2004 | EP1410678A2 A method and system for transmitting and/or receiving audio signals with a desired direction |
| 04/21/2004 | EP1410500A1 Volume control in a communication device interface unit |
| 04/21/2004 | EP1410382A1 Method for noise reduction and microphone array for performing noise reduction |
| 04/21/2004 | CN1490198A Acoustic devices |
| 04/21/2004 | CN1147207C Loudspeakers |
| 04/20/2004 | US6725109 Sound generator circuit system and method |
| 04/15/2004 | WO2004032351A1 System and method for integral transference of acoustical events |
| 04/15/2004 | WO2004032191A2 Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites |
| 04/15/2004 | WO2003079725A3 Resonator device and associated circuits |
| 04/15/2004 | US20040071301 Mixing method, mixing apparatus, and program for implementing the mixing method |
| 04/15/2004 | US20040071297 Apparatus and method for audio-signal-processing |
| 04/15/2004 | US20040071284 Method and system for processing subband signals using adaptive filters |
| 04/15/2004 | US20040071059 Multi-channel reproducing apparatus and multi-channel reproducing loudspeaker apparatus |
| 04/15/2004 | DE19846821B4 Audiokommunikationssystem Audio communication system |
| 04/15/2004 | CA2499950A1 Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites |
| 04/15/2004 | CA2499754A1 System and method for integral transference of acoustical events |
| 04/14/2004 | EP1408716A2 Microphones with equal sensitivity |
| 04/14/2004 | EP1408419A2 Digital signal processor system |
| 04/14/2004 | EP1050189B1 Method and arrangement for voice communications |
| 04/14/2004 | CN1489417A Microphone-loudspeaker device |
| 04/14/2004 | CN1489369A Karaoke making method and playing method for wireless network and wireless hand-held device |
| 04/14/2004 | CN1489287A 数字信号处理器系统 A digital signal processor system |
| 04/14/2004 | CN1146295C Adaptive controller for acturator systems |
| 04/13/2004 | US6721428 Automatic loudspeaker equalizer |
| 04/13/2004 | US6721426 Speaker device |
| 04/08/2004 | WO2004030407A2 Drive mechanism |
| 04/08/2004 | US20040066943 Mixing console having visual marking system applied to manual operators with subgrouping |
| 04/08/2004 | US20040066942 Signal derived bias supply for electrostatic loudspeakers |
| 04/08/2004 | US20040066941 Directional setting apparatus, directional setting system, directional setting method and directional setting program |
| 04/08/2004 | US20040066940 Method and system for inhibiting noise produced by one or more sources of undesired sound from pickup by a speech recognition unit |
| 04/08/2004 | US20040066792 Signal switching apparatus and program |
| 04/08/2004 | DE10341792A1 Stereophonie-Gerät mit Mehrfachschaltfunktion und Gerät zum Steuern eines Tonsignals Stereophonic device with multiple switching function and device for controlling an audio signal |
| 04/07/2004 | EP1406397A1 MULTI−CHANNEL ECHO CANCEL METHOD, MULTI−CHANNEL SOUND TRANSFER METHOD, STEREO ECHO CANCELLER, STEREO SOUND TRANSFER APPARATUS, AND TRANSFER FUNCTION CALCULATION APPARATUS |
| 04/07/2004 | EP1406224A2 Method and apparatus for remote control of an audio source such as a wireless microphone system |
| 04/07/2004 | EP1405301A2 Variable multi-dimensional apodization control for ultrasonic transducers |
| 04/06/2004 | US6718041 Echo attenuating method and device |
| 04/06/2004 | US6718040 Transformer, loudspeaker device, loudspeaker network, and loudspeaker system |
| 04/06/2004 | US6717991 System and method for dual microphone signal noise reduction using spectral subtraction |
| 04/06/2004 | US6717537 Method and apparatus for minimizing latency in digital signal processing systems |
| 04/01/2004 | WO2004027827A2 Integrated circuit with automatic polarity detection and configuration |
| 04/01/2004 | US20040064197 Digital signal processor system |
| 04/01/2004 | US20040061552 Class D amplifier |
| 04/01/2004 | DE10340582A1 Sound generator, drives loudspeakers for acoustic frequency ranges above acoustic frequency threshold with delay compared to loudspeakers for frequency ranges below threshold |
| 04/01/2004 | DE10117528B4 Ultraschallbasiertes parametrisches Mehrwege-Lautsprechersystem Ultrasound-based parametric multi-way speaker system |
| 03/31/2004 | EP1404148A1 Howling control device and howling control method |
| 03/31/2004 | EP1404042A1 Mixing method, mixing apparatus, and program for implementing the mixing method |
| 03/31/2004 | EP1404026A1 Reproduction apparatus, output apparatus and method for controlling power consumption |
| 03/31/2004 | EP1402755A2 Method and apparatus to create a sound field |
| 03/31/2004 | CN1486531A Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 03/31/2004 | CN1144500C Electro-mechanical-acoustic transducing device |
| 03/30/2004 | US6711953 Method of and apparatus for controlling beams produced by a cylindrical transducer |
| 03/25/2004 | WO2004025989A1 Calibrating a first and a second microphone |
| 03/25/2004 | WO2004025829A1 A stereophonic apparatus having multiple switching function and an apparatus for controlling sound signal |
| 03/25/2004 | WO2004012422A3 Voice controlled system and method |
| 03/25/2004 | WO2003103857A8 Electronic control circuit and acoustic-signal emitting device for vehicles |
| 03/25/2004 | WO2003094369A3 Multi-channel downmixing device |