| Patents for H04R 3 - Circuits for transducers (18,190) |
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| 03/04/2009 | CN100466571C Handling broadcast and multicast traffic as unicast traffic in a wireless network |
| 03/04/2009 | CN100466565C Loopback control method and device |
| 03/04/2009 | CN100466559C Method for judging spring grouping ring topology stability |
| 03/04/2009 | CN100466554C Communication adaptation layer system and method for obtaining the network element information |
| 03/04/2009 | CN100466550C Method, device and system for implementing multi-service type structure |
| 03/04/2009 | CN100466546C System and method for realizing business protection using LCAS protocol |
| 03/04/2009 | CN100466542C Service gradation based loss distribution method |
| 03/04/2009 | CN100466538C Method and apparatus for changing the operation mode of an agent of a management network |
| 03/04/2009 | CN100466534C Method for processing faults in multimedia sub-system equipment |
| 03/04/2009 | CN100466530C Method and device for connecting a plurality of conferences |
| 03/03/2009 | US7499558 Digital mixer |
| 03/03/2009 | US7499557 Driving method of speaker and the driving circuit thereof |
| 03/03/2009 | US7499556 Integrating apparatus |
| 03/03/2009 | US7499554 Electronic devices, methods, and computer program products for detecting noise in a signal based on autocorrelation coefficient gradients |
| 02/26/2009 | WO2009025090A1 Directivity microphone device |
| 02/26/2009 | WO2009024749A1 Audio reproduction apparatus comprising portable docking station and base unit |
| 02/26/2009 | WO2008120436A3 Voice conference apparatus providing microphone directivity to reduce acoustic coupling |
| 02/26/2009 | US20090055170 Sound Source Separation Device, Speech Recognition Device, Mobile Telephone, Sound Source Separation Method, and Program |
| 02/26/2009 | US20090052715 Electronic device with an internal microphone array |
| 02/26/2009 | US20090052696 Electroacoustic transducer |
| 02/26/2009 | US20090052689 Deconvolution Methods and Systems for the Mapping of Acoustic Sources from Phased Microphone Arrays |
| 02/26/2009 | US20090052688 Remote conference apparatus and sound emitting/collecting apparatus |
| 02/26/2009 | US20090052687 Method and apparatus for determining and indicating direction and type of sound |
| 02/26/2009 | US20090052686 Electronic device with an internal microphone array |
| 02/26/2009 | US20090051825 Video/audio output device and external speaker control apparatus |
| 02/25/2009 | EP2028875A1 Digital audio signal amplifier |
| 02/25/2009 | EP2027581A1 Signal separator, method for determining output signals on the basis of microphone signals, and computer program |
| 02/25/2009 | CN201199450Y Voice control module circuit for electric vehicle |
| 02/25/2009 | CN101375630A Sound reproduction |
| 02/25/2009 | CN101375629A Device and method for adapting audio signal to transducer unit |
| 02/25/2009 | CN101375628A Electronic device and sound reproducing method |
| 02/25/2009 | CN101373961A Signal processing device, signal processing method, and program therefor |
| 02/24/2009 | US7496507 Digitized audio data reproduction apparatus, and integrated circuit device to output audio signals |
| 02/19/2009 | WO2009023703A2 Auto bias microphone system for use with multiple loads and method of forming same |
| 02/19/2009 | WO2008139155A8 Communication apparatus with ambient noise reduction |
| 02/19/2009 | WO2008101198A4 Triangular microphone assembly for use in a vehicle accessory |
| 02/19/2009 | US20090047022 Remote Control Device |
| 02/19/2009 | US20090046870 Auto bias microphone system for use with multiple loads and method of forming same |
| 02/18/2009 | EP2026598A1 Voice conference device |
| 02/18/2009 | EP2026597A1 Noise reduction by combined beamforming and post-filtering |
| 02/18/2009 | EP2026329A1 Speech situation data creating device, speech situation visualizing device, speech situation data editing device, speech data reproducing device, and speech communication system |
| 02/18/2009 | EP2026326A1 Active noise reduction system |
| 02/18/2009 | EP2025200A2 Method for manufacturing an audio signal |
| 02/18/2009 | EP2025194A1 Wind noise rejection apparatus |
| 02/18/2009 | EP1736027A4 Optimum driver spacing for a line array with a minimum number of radiating elements |
| 02/18/2009 | CN201197032Y Audio switching line |
| 02/18/2009 | CN201195694Y Micro-electronmechanical microphone packaging system |
| 02/18/2009 | CN101370323A Apparatus capable of performing acoustic echo cancellation and a method thereof |
| 02/18/2009 | CN101370322A Microphone gain control method and communication equipment |
| 02/18/2009 | CN101370108A Image display device and method and program |
| 02/18/2009 | CN101370107A Image display device and method and program |
| 02/18/2009 | CN101369427A Noise reduction by combined beamforming and post-filtering |
| 02/17/2009 | US7493180 Method for RIAA correction of audio signal with use of transformer and capacitor |
| 02/17/2009 | US7492915 Dynamic sound source and listener position based audio rendering |
| 02/17/2009 | US7492914 Audio receiving system |
| 02/17/2009 | US7492911 Noise reducing device |
| 02/17/2009 | US7492908 Sound localization system based on analysis of the sound field |
| 02/13/2009 | CA2638469A1 Noise reduction by combined beamforming and post-filtering |
| 02/12/2009 | WO2009021025A2 Non-contact ethernet link with bidirectional transducer |
| 02/12/2009 | WO2009020200A1 Screen, control device and method, program and recording medium |
| 02/12/2009 | WO2009020082A1 Audio conference system |
| 02/12/2009 | WO2009019748A1 Sound receiving device, directional characteristic deriving method, directional characteristic deriving apparatus and computer program |
| 02/12/2009 | US20090041284 Headphone set and method of producing the same |
| 02/12/2009 | US20090040381 Information Processing Apparatus and Output Control Method |
| 02/12/2009 | DE102007036905A1 Audio signals reproducing device e.g. compact disk player, for use with e.g. earphone, has audio signal output and/or another signal output, or combination of outputs activated or deactivated by switching device based on sensor signals |
| 02/12/2009 | CA2695601A1 Audio conference system |
| 02/11/2009 | EP2023657A2 Speaker and speaker apparatus |
| 02/11/2009 | EP2023652A1 Audio driver device and method of operating an audio driver device |
| 02/11/2009 | EP2023651A1 Loudspeaker |
| 02/11/2009 | EP2023007A1 Damper for automobiles for reducing vibration of automobile body |
| 02/11/2009 | EP2022675A1 Audio playback system |
| 02/11/2009 | EP2021739A1 Capacitive mems sensor device |
| 02/11/2009 | CN101364169A Information processing apparatus and output control method |
| 02/11/2009 | CN100461040C Supporter for external loudspeaker of mobile communication terminal and operating method thereof |
| 02/10/2009 | US7489791 A/D converter with integrated biasing for a microphone |
| 02/10/2009 | US7489788 Recording a three dimensional auditory scene and reproducing it for the individual listener |
| 02/10/2009 | US7489785 Noise cancellation system and headphone therefor |
| 02/10/2009 | US7489784 Automatic sound field correcting device and computer program therefor |
| 02/05/2009 | WO2009017718A2 Flexible sheet audio-video device |
| 02/05/2009 | US20090037969 Audiovisual reproduction system |
| 02/05/2009 | US20090034773 Mems microphone package |
| 02/05/2009 | US20090034755 Ambient noise cancellation for voice communications device |
| 02/05/2009 | US20090034753 Direction detection apparatus, direction detection method and direction detection program, and direction control apparatus, direction control method, and direction control program |
| 02/05/2009 | US20090034752 Constrainted switched adaptive beamforming |
| 02/05/2009 | US20090031491 System And Method For Controlling The Environment Of A Steambath |
| 02/05/2009 | DE102007059655A1 Measuring results measuring and transferring device for analyzing and determining functional standby of loudspeaker, is arranged directly on loudspeaker, and digitally and wirelessly determines measuring results |
| 02/04/2009 | CN201191512Y Resonance audio player adopting USB interface |
| 02/04/2009 | CN201191368Y Greenhouse music control apparatus based on microcontroller |
| 02/04/2009 | CN101360351A Low pass integrated circuit fulfilling mute function by twin span cascade |
| 02/04/2009 | CN101360350A Digital microphone |
| 02/03/2009 | US7486797 Audio correcting apparatus |
| 02/03/2009 | US7486414 Image forming device, pattern formation method and storage medium storing its program |
| 01/29/2009 | WO2009014286A1 Headset for user specific audio service and method for user specific audio service using the same |
| 01/29/2009 | WO2009014122A1 Echo canceller |
| 01/29/2009 | US20090028378 Speaker system |
| 01/29/2009 | US20090028362 Hearing device with a visualized psychoacoustic variable and corresponding method |
| 01/29/2009 | US20090028360 Multichannel Downmixing Device |
| 01/29/2009 | DE102008016570A1 Sound reproducing method, involves reducing phase difference of phase responses in basses, and damping exciting voltages strongly with increasing frequencies and selecting critical frequency smaller than magnitude by circuit |
| 01/28/2009 | CN101355824A Usb扬声系统 Usb speaker system |
| 01/27/2009 | US7483541 Digital mixer |