| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 01/11/2005 | US6842528 Microphone mount |
| 01/11/2005 | US6842527 Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 01/11/2005 | US6842525 Signal amplification circuit and process for neutralizing noise from a power supply voltage |
| 01/11/2005 | CA2316378C Digital and analog directional microphone |
| 01/11/2005 | CA2308156C Hearing aid comprising an array of microphones |
| 01/06/2005 | WO2005002199A2 System and method for delivering audio-visual content along a customer waiting line |
| 01/06/2005 | WO2004100602A3 Method and system for communication enhancement ina noisy environment |
| 01/06/2005 | WO2004095880A3 Sound and/or image reproduction unit, and use of a removable operator panel |
| 01/06/2005 | WO2004091254A3 Method and apparatus for reducing an interference noise signal fraction in a microphone signal |
| 01/06/2005 | US20050002535 Remote audio device management system |
| 01/06/2005 | US20050002534 Method and device for controlling the bass reproduction of audio signals in electroacoustic transducers |
| 01/06/2005 | CA2528588A1 System and method for delivering audio-visual content along a customer waiting line |
| 01/05/2005 | EP1494504A2 Audio data processing device, audio data processing method, program for the same, and recording medium for the program recorded therein |
| 01/05/2005 | EP1494502A2 Lousspeaker system |
| 01/05/2005 | EP1494501A2 Device consisting of a wireless microphone and a receiver |
| 01/05/2005 | EP1493303A1 Microphone assembly with auxiliary analog input |
| 01/05/2005 | EP1277372B1 Reception system for multisensor antenna |
| 01/05/2005 | CN2669480Y Power amplifier infrared matrix regulating device |
| 01/05/2005 | CN1561141A DVD/CD player musical radio playing and transmitting device |
| 01/05/2005 | CN1183803C Anti-noise pickup and its sound signal processing method |
| 01/05/2005 | CN1183691C Acoustic heterodyne device and method |
| 01/04/2005 | US6839303 Matched filter, receiving beam-forming apparatus and sonar system |
| 01/04/2005 | US6838610 Arrangement of a rhythmic apparatus with a vehicle sound apparatus, rhythmic accompaniment method and electronic transducer |
| 12/30/2004 | US20040264716 Line array electroacoustical transducing |
| 12/30/2004 | US20040264711 Method and apparatus for adaptively pre-shaping audio signal to accommodate loudspeaker characteristics |
| 12/30/2004 | US20040264703 Audio signal recording apparatus |
| 12/30/2004 | US20040264610 Interference cancelling method and system for multisensor antenna |
| 12/29/2004 | WO2004114718A1 Audio signal processing device and audio signal processing method with automatic sound spectrum selection |
| 12/29/2004 | WO2004086555A3 Multi-band omni directional antenna |
| 12/29/2004 | WO2004004297A8 Stationary spectral power dependent audio enhancement system |
| 12/29/2004 | EP1492081A1 A system and method for simulation of non-linear audio equipment |
| 12/29/2004 | EP1166544A4 Interference canceling method and apparatus |
| 12/29/2004 | CN1558551A Base frequency shifting feedback controller |
| 12/23/2004 | WO2004112432A1 Device and method for locating a room area |
| 12/23/2004 | WO2004111995A1 Device and method for voice activity detection |
| 12/23/2004 | US20040258259 Acoustic apparatus and acoustic setting method |
| 12/23/2004 | US20040258256 Amplifier circuit with negative feedback |
| 12/23/2004 | US20040258255 Post-processing scheme for adaptive directional microphone system with noise/interference suppression |
| 12/23/2004 | US20040258252 Active vibratory noise control apparatus |
| 12/23/2004 | US20040258250 System and method for simulation of non-linear audio equipment |
| 12/23/2004 | US20040258246 Bass frequency amplifying apparatus |
| 12/23/2004 | DE10156954B4 Bildgestützte adaptive Akustik Image-guided adaptive acoustic |
| 12/22/2004 | EP1489886A2 Acoustic apparatus and acoustic setting method |
| 12/22/2004 | EP1489880A1 Device and method for processing sound signals with automatic selection of acoustic spectrum |
| 12/22/2004 | EP1489596A1 Device and method for voice activity detection |
| 12/22/2004 | EP1489594A2 Active vibratory noise control apparatus for cancelling noise inside a vehicle |
| 12/22/2004 | EP1488662A1 Active audio compressing in telecommunication |
| 12/22/2004 | EP1488661A2 Reducing noise in audio systems |
| 12/22/2004 | EP0965168A4 Audio crossover circuit |
| 12/22/2004 | CN2666069Y Outdoor intelligent sound unit |
| 12/22/2004 | CN1181704C Parametric loudspeaker with electro-acoustical disphragm transducer |
| 12/21/2004 | US6834108 Method for improving acoustic noise attenuation in hand-free devices |
| 12/16/2004 | US20040254663 Device for providing audio output and related systems and methods |
| 12/16/2004 | US20040252858 Method and apparatus for substantially improving power supply rejection performance in a miniature microphone assembly |
| 12/16/2004 | US20040252853 Oscillation suppression |
| 12/16/2004 | US20040252852 Hearing system beamformer |
| 12/16/2004 | US20040252845 System and process for sound source localization using microphone array beamsteering |
| 12/16/2004 | US20040252827 Echo canceler, echo canceling method, and recording medium |
| 12/16/2004 | DE10323126A1 Adaptive bass booster for active bass loudspeaker, controls gain of linear amplifier using control signal proportional to perceived loudness, and has amplifier output connected to bass loudspeaker |
| 12/16/2004 | DE10320209A1 Audio signal recognition system uses microphones distributed around a room and coupled to a central unit |
| 12/15/2004 | EP1487236A2 Sound system with equalization for a convertible automobile |
| 12/15/2004 | EP1486094A2 Resonator device and associated circuits |
| 12/15/2004 | EP1485990A1 Communication device with active equalization and method therefor |
| 12/15/2004 | EP1485968A1 Beam forming array of transducers |
| 12/15/2004 | EP1485691A1 Method and system for measuring a system's transmission quality |
| 12/15/2004 | CN2664333Y Loudspeaker audio-frequency output two-order three-frequency dividing coupling circuit |
| 12/15/2004 | CN1555212A High performance echo suppressor |
| 12/15/2004 | CN1555004A Display card for increasing video play smooth degree |
| 12/15/2004 | CN1180602C Method and apparatus for space-time echo cancellation |
| 12/14/2004 | US6831986 Feedback cancellation in a hearing aid with reduced sensitivity to low-frequency tonal inputs |
| 12/14/2004 | US6831657 Display control apparatus for displaying gain setting value in predetermined color hue |
| 12/09/2004 | WO2004107812A1 Array speaker system |
| 12/09/2004 | WO2004107811A1 Array speaker system |
| 12/09/2004 | WO2004107807A1 Array speaker system |
| 12/09/2004 | WO2004107806A1 Audio system |
| 12/09/2004 | WO2004036951A3 Microphone for simultaneous noise sensing and speech pickup |
| 12/09/2004 | US20040247144 Sound reproduction systems |
| 12/09/2004 | US20040247141 Convertible automobile sound system equalizing |
| 12/09/2004 | US20040247140 Parametric virtual speaker and surround-sound system |
| 12/09/2004 | US20040247136 True RMS audio power meter |
| 12/09/2004 | DE10332119B3 Hearing aid worn in ear or with otoplastic worn in ear generates second acoustic earpiece signal region of ventilation channel to inhibit acoustic signal entering closed ear canal volume from outside |
| 12/08/2004 | EP1261962B1 A method of improving the audibility of sound from a loudspeaker located close to an ear |
| 12/08/2004 | CN1554208A Miniature speaker with integrated signal processing electronics |
| 12/07/2004 | US6829131 MEMS digital-to-acoustic transducer with error cancellation |
| 12/02/2004 | WO2004105430A1 Oscillation suppression |
| 12/02/2004 | WO2004105371A1 Microphone circuit having adjustable directivity pattern for reducing loudspeaker feedback and method of operating the same |
| 12/02/2004 | US20040240697 Constant-beamwidth loudspeaker array |
| 12/02/2004 | US20040240690 Oscillation detection |
| 12/02/2004 | US20040240682 Method and apparatus for suppressing an acoustic interference signal in an incoming audio signal |
| 12/02/2004 | US20040240681 Method and apparatus for identifying the direction of incidence of an incoming audio signal |
| 12/02/2004 | US20040240680 System and process for robust sound source localization |
| 12/02/2004 | US20040240677 Active noise control system |
| 12/02/2004 | DE19951406B4 Lautsprecherkombination Speaker combination |
| 12/02/2004 | DE10320190A1 Detektionsvorrichtung Detection device |
| 12/02/2004 | DE10314348A1 Controller especially for loudspeaker e.g. surround system, has actual value required for loudspeaker membrane deflection calculated in digital signal processor |
| 12/02/2004 | DE102004023469A1 Ultraschallsensor Ultrasonic sensor |
| 12/02/2004 | CA2526261A1 Method and apparatus for extending band of audio signal using higher harmonic wave generator |
| 12/01/2004 | EP1481570A1 Loudspeaker with shaped sound field |
| 12/01/2004 | EP1481568A2 Digital microphone |
| 12/01/2004 | EP0919096B1 Method for cancelling multichannel acoustic echo and multichannel acoustic echo canceller |