| Patents for H04R 3 - Circuits for transducers (18,190) |
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| 06/11/2009 | US20090147967 Conference apparatus |
| 06/11/2009 | US20090147963 Bass enhancement for audio |
| 06/11/2009 | US20090147134 Audio signal supplying device, parameter providing system, television set, av system, speaker apparatus, and audio signal supplying method |
| 06/10/2009 | EP2068309A1 Sound input device |
| 06/10/2009 | EP1829422A4 Speaker diagnostics based upon driving-point impedance |
| 06/10/2009 | DE102008057283A1 Anti-Stoßverfahren für ein Verarbeiten kapazitiver Sensorsignale Anti-shock processing method for a capacitive sensor signals |
| 06/10/2009 | CN201256446Y Integrated circuit special for multi-channel audio amplification |
| 06/10/2009 | CN101455094A Sound emission and collection apparatus and control method of sound emission and collection apparatus |
| 06/10/2009 | CN101455093A Voice conference device |
| 06/10/2009 | CN100499875C Directional microphone arrangement and method for signal processing in directional microphone arrangement |
| 06/10/2009 | CN100499356C Dynamic allocation of power supplied by a power supply and frequency agility spectral filtering of signals |
| 06/04/2009 | WO2009069289A1 Voice input/output automatic switching circuit used in hand-held microphone with speaker of communication device such as transceiver |
| 06/04/2009 | WO2009069184A1 Sound processing device, correcting device, correcting method and computer program |
| 06/04/2009 | WO2009042651A3 Method and system for adjusting audio of a wireless communication device |
| 06/04/2009 | US20090141912 Object sound extraction apparatus and object sound extraction method |
| 06/04/2009 | US20090141909 Microphone Circuit |
| 06/04/2009 | US20090141908 Distance based sound source signal filtering method and apparatus |
| 06/04/2009 | US20090141347 Apparatus and Method for Using Voice Coils as Screen Motion Sensors |
| 06/04/2009 | US20090141170 Video/audio output device and external speaker control apparatus |
| 06/04/2009 | DE102007057664A1 Lautsprechereinrichtung Speaker Setup |
| 06/04/2009 | CA2706558A1 System and method for receiving analog and digital input |
| 06/03/2009 | EP2066139A2 A hearing aid |
| 06/03/2009 | EP2064915A2 Controller and user interface for dialogue enhancement techniques |
| 06/03/2009 | EP1638810A4 Rearview mirror assemblies incorporating hands-free telephone components |
| 06/03/2009 | EP1133768B1 Consumer electronics system with speech recognizer |
| 06/03/2009 | CN101449594A Adaptive speaker equalization |
| 06/03/2009 | CN101448187A Anti-shock methods for processing capacitive sensor signals |
| 06/03/2009 | CN101448186A System and method for automatic regulating sound effect of a loudspeaker |
| 06/03/2009 | CN100496149C Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
| 06/02/2009 | US7542814 Home entertainment apparatus and method |
| 06/02/2009 | US7542813 Rapidly optimized wireless microphone system and method for controlling thereof |
| 06/02/2009 | US7542662 Reproduction system |
| 06/02/2009 | US7542618 Apparatus and method for data processing by using a plurality of data processing apparatuses and recording medium storing program for executing the method |
| 06/02/2009 | US7542578 Condenser microphone |
| 06/02/2009 | US7542577 Input sound processor |
| 05/28/2009 | WO2009066906A2 Apparatus for sound having multiple stereo imaging |
| 05/28/2009 | WO2009066290A2 Digital speaker apparatus |
| 05/28/2009 | WO2009065223A1 Alarm system audio interface tamper and state detection |
| 05/28/2009 | US20090136062 Microphone circuit and method for analog-to-digital conversion therein |
| 05/28/2009 | US20090136059 Microphone system, sound input apparatus and method for manufacturing the same |
| 05/28/2009 | DE202009001466U1 Intuitiv gesteuerte Gehörschutzschaltung für Kopfhörer Intuitively controlled hearing protection switch for headphones |
| 05/27/2009 | EP2063661A1 Microphone system, sound input apparatus and method for manufacturing the same |
| 05/27/2009 | EP2063419A1 Speaker localization |
| 05/27/2009 | CN201248125Y Cascade frequency-dropping type frequency divider |
| 05/27/2009 | CN101444107A Wind noise rejection apparatus |
| 05/27/2009 | CN101443633A Capacitive mems sensor device |
| 05/27/2009 | CN101443214A Audio playback system |
| 05/27/2009 | CN101442696A Method for filtering sound noise |
| 05/27/2009 | CN101442695A Microphone system, sound input apparatus and method for manufacturing the same |
| 05/27/2009 | CN101442051A Monocrystallinetype knot-type field effect tube device and preparation method thereof |
| 05/27/2009 | CN100493235C Xiafula audible signal processing circuit and method |
| 05/22/2009 | WO2009062214A1 Method for synthesizing a microphone signal |
| 05/22/2009 | WO2009062210A1 Microphone arrangement |
| 05/22/2009 | CA2611462A1 Alarm system audio interface tamper and state detection |
| 05/21/2009 | US20090129609 Method and apparatus for acquiring multi-channel sound by using microphone array |
| 05/21/2009 | US20090129608 Method for reducing interference powers and corresponding acoustic system |
| 05/21/2009 | US20090129604 Sound field control method and system |
| 05/21/2009 | US20090129602 Array speaker apparatus |
| 05/21/2009 | US20090128617 Method and apparatus for obtaining acoustic source location information and a multimedia communication system |
| 05/20/2009 | CN201243374Y Control device for regulating earphone sound volume |
| 05/20/2009 | CN101438078A Damper for automobiles for reducing vibration of automobile body |
| 05/20/2009 | CN101437183A Earplug type bone conduction receiver-transmitter |
| 05/20/2009 | CN101436848A Drive amplifying circuit |
| 05/20/2009 | CN100489991C Digital audio-frequency data reproducing device and integrated circuit device |
| 05/20/2009 | CN100489762C Loudspeaker box control driving method and system thereof |
| 05/20/2009 | CN100489761C Interactive voice reproduction |
| 05/19/2009 | US7536212 Communication system using short range radio communication headset |
| 05/14/2009 | WO2009060557A1 Signal amplifying device and acoustic system |
| 05/14/2009 | US20090123005 Multiple magnet loudspeaker |
| 05/14/2009 | DE102007053188A1 Gerät der Unterhaltungselektronik mit Kopfhörer Unit of consumer electronics with headphones |
| 05/13/2009 | EP2059065A1 Sound collection device |
| 05/13/2009 | EP2059064A1 Voice conference system |
| 05/13/2009 | EP1097510B1 Capacitor-less crossover network for electro-acoustic loudspeakers |
| 05/13/2009 | CN201237909Y Down-hole anti-interference automatic music playing circuit |
| 05/13/2009 | CN101431709A Audio processing method and system |
| 05/13/2009 | CN101431708A Terminal and method for recognizing headphone type |
| 05/13/2009 | CN101431704A Earphone device |
| 05/13/2009 | CN101427930A Method for improving doppler sound quality for colorful ultrasonic system |
| 05/13/2009 | CN100488072C Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus |
| 05/13/2009 | CN100488041C Method for preventing output device demaged |
| 05/12/2009 | US7533015 Signal enhancement via noise reduction for speech recognition |
| 05/12/2009 | US7532731 Digital mixer apparatus and method therefor |
| 05/12/2009 | US7532717 Echo canceler with automatic gain control of echo cancellation signal |
| 05/12/2009 | US7532543 Acoustic signal generating apparatus |
| 05/07/2009 | WO2009057488A1 Auditory sensibility correction device |
| 05/07/2009 | WO2009056956A1 Focusing on a portion of an audio scene for an audio signal |
| 05/07/2009 | WO2009056858A2 Sound projector set-up |
| 05/07/2009 | US20090116666 Adjusting acoustic speaker output based on an estimated degree of seal of an ear about a speaker port |
| 05/07/2009 | US20090116659 Networked sound masking system with centralized sound masking generation |
| 05/07/2009 | DE10114732B4 Verfahren zur aktiven Rauschunterdrückung unter Verwendung der Analyse unabhängiger Komponenten Method for active noise cancellation using independent component analysis |
| 05/06/2009 | EP2056622A1 Adjusting acoustic speaker output based on an estimated degree of seal of an ear about a speaker port |
| 05/06/2009 | EP2056621A2 Speaker array system |
| 05/06/2009 | EP2056295A2 Enhancement of speech signals comprising frequency-limited noise |
| 05/06/2009 | CN201234330Y Portable loudspeaker box |
| 05/06/2009 | CN101427305A Active noise reduction system |
| 05/06/2009 | CN101426159A Pre-calibrating acoustic equalizing apparatus |
| 05/06/2009 | CN101426158A Audio switching device having volume regulating function |
| 05/06/2009 | CN101426157A Phase lock loop |
| 05/06/2009 | CN101426156A Speaker array system |
| 05/06/2009 | CN101425649A Electrical volume control using contacts on rotatable connector, and method |