| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 06/11/2008 | CN100394829C Voice-frequency signal processing method |
| 06/11/2008 | CN100394475C System and method for inhibitting wind noise |
| 06/10/2008 | US7386135 Cardioid beam with a desired null based acoustic devices, systems and methods |
| 06/10/2008 | US7386109 Communication apparatus |
| 06/05/2008 | US20080130919 Two way device free communications system |
| 06/05/2008 | US20080130913 Method and System for Detecting, and Controlling Power for, an Auxiliary Microphone |
| 06/04/2008 | CN201069882Y Audio earphone amplifier |
| 06/04/2008 | CN101194535A Method for correcting electroacoustic converter acoustic paramenter and device accomplishing the method |
| 06/04/2008 | CN101194534A Acoustic apparatus and telephone conversation apparatus |
| 06/04/2008 | CN101193459A Sound field reproduction system |
| 06/04/2008 | CN101192812A Onboard audio volume control device and method |
| 06/04/2008 | CN101192411A Large distance microphone array noise cancellation method and noise cancellation system |
| 06/03/2008 | US7382889 Condenser microphone |
| 05/29/2008 | WO2008062850A1 Voice input device, its manufacturing method and information processing system |
| 05/29/2008 | WO2008062849A1 Integrated circuit device, voice input device and information processing system |
| 05/29/2008 | WO2008062848A1 Voice input device, its manufacturing method and information processing system |
| 05/29/2008 | WO2008062748A1 Signal processing device and signal processing method |
| 05/29/2008 | WO2008061534A1 Signal processing using spatial filter |
| 05/29/2008 | WO2008041064A3 Detection circuit for detecting the connection of an accessory to a mobile device and method thereof |
| 05/29/2008 | WO2007135682B1 Apparatus for generating pressure and methods of manufacture thereof |
| 05/29/2008 | US20080123885 Feedback compensation method and circuit for an acoustic amplification system, and hearing aid device employing same |
| 05/28/2008 | EP1925184A2 A system and method for integrating transducers into body support structures |
| 05/28/2008 | CN201066920Y Lighting earphone |
| 05/28/2008 | CN101189913A Multi-channel sound pickup apparatus, multi-channel sound reproducing apparatus, and multi-channel sound pickup/reproducing apparatus |
| 05/28/2008 | CN101188873A Earphones |
| 05/28/2008 | CN101188403A Audio amplification device with adjustable power consumption |
| 05/27/2008 | US7379553 Sound source search system |
| 05/22/2008 | US20080117332 Broadcast receiving device |
| 05/21/2008 | EP1247421A4 Piezoelectric film sonic emitter |
| 05/21/2008 | CN201063842Y Piezoelectric audio vibration transducing amplification adapter |
| 05/21/2008 | CN201063841Y Wireless attachment type audio transducer |
| 05/21/2008 | CN201063829Y Bluetooth earphone |
| 05/21/2008 | CN101185370A Detection and surpression of wind noise in microphone signals |
| 05/21/2008 | CN101185368A Assembly, system and method for acoustic transducers |
| 05/21/2008 | CN101184346A Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system |
| 05/21/2008 | CN101184345A Noise reducing device, noise reducing method, noise reducing program, and noise reducing audio outputting device |
| 05/21/2008 | CN101183855A D-type amplifier |
| 05/20/2008 | US7376236 Piezoelectric film sonic emitter |
| 05/15/2008 | WO2008056649A1 Sound source position detector |
| 05/15/2008 | WO2008056572A1 Drecording evice and recording method |
| 05/15/2008 | WO2008056334A1 Signal processing system and method |
| 05/15/2008 | WO2008014324A3 Multiple microphone system |
| 05/15/2008 | US20080112571 Noise control in proximity to a computer system |
| 05/14/2008 | EP1921890A2 Sound beam loudspeaker system |
| 05/14/2008 | EP1921888A1 Loudspeaker system |
| 05/14/2008 | EP1921886A1 Voice output device and method, program, and room |
| 05/14/2008 | CN201061181Y Active speaker |
| 05/14/2008 | CN101179874A Acoustics system capable of performing description and correction to sound box parameter |
| 05/14/2008 | CN101179873A Noise canceling system and noise canceling method |
| 05/14/2008 | CN101179872A Digital filter circuit, digital filter program and noise canceling system |
| 05/14/2008 | CN101179871A Earphone and audio play device |
| 05/14/2008 | CN101179261A Surge current suppressing circuit and audio product using the same |
| 05/14/2008 | CN101178893A Electronic horn of vehicle capable of automatically following ear trumpet horn resonance frequency |
| 05/14/2008 | CN100388182C Connecting line of USB interface with amplifier of microphone |
| 05/14/2008 | CA2573431A1 Ultrasonic transducer having a digital interface |
| 05/13/2008 | US7372967 Microphone bias circuit |
| 05/13/2008 | US7372966 System for limiting loudspeaker displacement |
| 05/08/2008 | WO2008054069A1 Method and apparatus for adjusting audio volume to prevent hearing loss or damage |
| 05/08/2008 | WO2008026162A3 Audio system and method for managing power |
| 05/08/2008 | US20080107288 Microphone |
| 05/08/2008 | US20080107287 Personal hearing control system and method |
| 05/08/2008 | US20080107286 Voice input support program, voice input support device, and voice input support method |
| 05/08/2008 | US20080107280 Noisy environment communication enhancement system |
| 05/08/2008 | DE102006052063A1 Loudspeaker system operating method for motor vehicle, involves subtracting and adding signal components of signals of one frequency channel from and to respective mixed signals that are respectively applied to two coils of one loudspeaker |
| 05/08/2008 | DE102006051071A1 Pegelabhängige Geräuschreduktion Level-dependent noise reduction |
| 05/07/2008 | EP1919251A1 Beamforming weights conditioning for efficient implementations of broadband beamformers |
| 05/07/2008 | EP1917838A2 Method and apparatus for improving noise discrimination using enhanced phase difference value |
| 05/07/2008 | EP1917837A2 Method and apparatus for improving noise discrimination using attenuation factor |
| 05/07/2008 | EP1917836A2 Noise mitigating microphone system and method |
| 05/07/2008 | EP1917533A2 Method and apparatus for accommodating device and/or signal mismatch in a sensor array |
| 05/07/2008 | CN201057672Y Echo restraining device of microphone |
| 05/07/2008 | CN101175337A System, apparatus, method and program for controlling output |
| 05/06/2008 | US7368920 Potential fixing device and potential fixing method |
| 05/02/2008 | WO2008051661A1 Speaker directionality for user interface enhancement |
| 05/02/2008 | WO2008050583A1 Intercom device and wiring system using the same |
| 05/02/2008 | WO2005022595A3 A parametric transducer |
| 05/01/2008 | US20080101629 System, Method and Apparatus for Adjusting an Output of a Transducer |
| 05/01/2008 | US20080101625 Piezoelectric microphones |
| 05/01/2008 | US20080101624 Speaker directionality for user interface enhancement |
| 05/01/2008 | US20080101620 Loudspeaker system for virtual sound synthesis |
| 05/01/2008 | US20080101619 System and method for compensating memoryless non-linear distortion of an audio transducer |
| 04/30/2008 | EP1916872A2 Differential directional microphone and hearing aid with such a differential directional microphone |
| 04/30/2008 | EP1915818A1 Audio tuning system |
| 04/30/2008 | EP1704748B1 Audio system providing for filter coefficient copying |
| 04/30/2008 | DE102007003992A1 Electric signal converting device, has filters formed as Chebychev type low pass filters, whose upper edge frequency lies in area of self-absorption of loudspeaker, where filters with loudspeaker is formed as modular unit |
| 04/30/2008 | CN201054792Y Broadcast controller |
| 04/30/2008 | CN201054780Y Automatic noise reduction earphone |
| 04/30/2008 | CN201054779Y Thin electret static speaker amplification device |
| 04/30/2008 | CN201054778Y Multi-function sound box |
| 04/30/2008 | CN201054777Y A low-frequency extender |
| 04/30/2008 | CN201054749Y Combined device for Bluetooth earphone and sound amplification |
| 04/30/2008 | CN101171880A Headphones for connection to an external active noise compensation device |
| 04/30/2008 | CN101170842A Highly clear non-distortion audio frequency divider |
| 04/30/2008 | CN101170302A Audio processing method and audio processing apparatus |
| 04/30/2008 | CN100385998C Signal processing apparatus |
| 04/30/2008 | CN100385997C Noise-reducing earpiece |
| 04/29/2008 | US7366313 Mixing console having visual marking system applied to manual operators with subgrouping |
| 04/29/2008 | US7366310 Microphone array diffracting structure |
| 04/29/2008 | US7366309 Robot |
| 04/29/2008 | US7366308 Sound pickup device, specially for a voice station |