| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 09/19/2002 | CA2439087A1 Microphone equipped with a range finder |
| 09/18/2002 | EP1241922A2 Audio surround sound power management switching |
| 09/18/2002 | EP1241921A2 Acoustic signal processor |
| 09/18/2002 | CN1370386A Voice-to-remaining audio (VRA) interactive hearing aid & auxiliary equipment |
| 09/17/2002 | US6453048 Impedance converter for a condenser microphone |
| 09/12/2002 | WO2002071798A1 Bone conduction hearing aid |
| 09/12/2002 | WO2002071796A1 Method and system for providing digitally focused sound |
| 09/12/2002 | WO2002007308A3 Infrabass |
| 09/12/2002 | US20020128738 Audio chip with switchable audio output pathways |
| 09/12/2002 | US20020126862 Focus fader with a plurality of optocouplers |
| 09/12/2002 | US20020126857 Sound generator circuit system and method |
| 09/11/2002 | EP1239698A1 Optical acoustoelectric transducer |
| 09/11/2002 | EP1238566A2 Method and device for improving communication in a vehicle |
| 09/11/2002 | EP1238528A1 Real time processing and management method for canceling out the echo between a loudspeaker and a microphone of a computer terminal |
| 09/11/2002 | CN1369189A Voice-to-remaining audio (VRA) intercutive center channel downmix |
| 09/11/2002 | CN1369188A Compensation system and method for sound reproduction |
| 09/11/2002 | CN1369173A Symmetry based subband acoustic echo cancellation |
| 09/10/2002 | US6449593 Method and system for tracking human speakers |
| 09/10/2002 | US6449361 Control method and device for echo canceller |
| 09/10/2002 | US6449216 Method for directional location and locating system |
| 09/10/2002 | US6448846 Controlled phase-canceling circuits/systems |
| 09/06/2002 | WO2002069517A1 Dve system with normalized selection |
| 09/06/2002 | WO2002069487A1 Dve system with instability detection |
| 09/06/2002 | WO2001060112A3 Method of generating an electrical output signal and acoustical/electrical conversion system |
| 09/06/2002 | WO2001015491A9 Modulator processing for a parametric speaker system |
| 09/06/2002 | CA2845172A1 Networked sound masking and paging system |
| 09/05/2002 | US20020122563 Bone conduction hearing aid |
| 09/04/2002 | EP1236340A1 Echo canceller in a communication system at a terminal |
| 09/04/2002 | EP0818121B1 Sound pick-up and reproduction system for a headset in a noisy environment |
| 09/04/2002 | CN2509806Y Microphone connector capable of generating trill |
| 09/04/2002 | CN1367978A Adaptability to multiple hands-free communication accessories |
| 09/03/2002 | US6445804 Ultra-directional speaker system and speaker system drive method |
| 09/03/2002 | US6444892 Sound system and method for creating a sound event based on a modeled sound field |
| 08/29/2002 | WO2002067625A1 Speaker-use protection element and speaker device |
| 08/29/2002 | WO2002045073A3 Systems and methods for controlling a phased array focused ultrasound system |
| 08/29/2002 | US20020120377 Vehicle audio interface adapter |
| 08/29/2002 | US20020118846 Acoustic signal processor |
| 08/29/2002 | US20020118843 Vehicle audio adapter |
| 08/29/2002 | US20020118841 System for using digital signal processing to compensate for power compression of loudspeakers |
| 08/29/2002 | DE10105184A1 Verfahren zum automatischen Einstellen eines digitalen Equalizers und Wiedergabeeinrichtung für Audiosignale zur Realisierung eines solchen Verfahrens A method for automatically adjusting a digital equalizer and reproducing device for audio signals for realizing such a method |
| 08/28/2002 | EP1234479A2 Loudspeaker device |
| 08/28/2002 | EP1133896B1 Environment adaptable loudspeaker |
| 08/28/2002 | CN2508508Y General sequence bus bar portable loudspeaker |
| 08/28/2002 | CN1366785A Semiconductor electric capacitor microphone |
| 08/28/2002 | CN1366784A Ultra bass II |
| 08/27/2002 | US6442443 Information processing apparatus and power saving apparatus |
| 08/27/2002 | US6442280 Apparatus detecting howling by decay profile of impulse response in sound system |
| 08/27/2002 | US6442278 Voice-to-remaining audio (VRA) interactive center channel downmix |
| 08/22/2002 | WO2002065735A2 Vehicle accessory microphone |
| 08/22/2002 | US20020114478 Speaker apparatus |
| 08/22/2002 | US20020114477 Directional optical mircophone |
| 08/22/2002 | US20020114472 Method for active noise cancellation using independent component analysis |
| 08/21/2002 | EP1232670A2 A method for analyzing an acoustical environment and a system to do so |
| 08/20/2002 | US6438237 3D woofer drive circuit |
| 08/20/2002 | US6437606 Method of anomalous offset detection and a corresponding circuit |
| 08/15/2002 | WO2002063918A2 Method for automatically adjusting the filter parameters of a digital equalizer and replay device for audio signals for carrying out such a method |
| 08/15/2002 | US20020111795 System for playback of pre-encoded signals through a parametric loudspeaker system |
| 08/15/2002 | US20020110256 Vehicle accessory microphone |
| 08/14/2002 | EP1231818A1 Anti-noise pickup |
| 08/14/2002 | EP1230784A1 Echo attenuating method and device |
| 08/14/2002 | EP1230739A2 Vehicle accessory microphone |
| 08/14/2002 | DE10114732A1 Verfahren zur aktiven Rauschunterdrückung unter Verwendung der Analyse unabhängiger Komponenten Method for active noise cancellation using independent component analysis |
| 08/14/2002 | DE10103464A1 Fahrzeug-Audiosystem Vehicle audio system |
| 08/13/2002 | US6432050 Implantable acoustic bio-sensing system and method |
| 08/08/2002 | WO2002061941A1 Audio reproducing apparatus and method |
| 08/08/2002 | US20020106093 Digital loudspeaker |
| 08/08/2002 | US20020106092 Microphone array apparatus |
| 08/06/2002 | US6430353 Audio and video reproducing apparatus having independent control of selected signals |
| 08/06/2002 | US6430295 Methods and apparatus for measuring signal level and delay at multiple sensors |
| 08/01/2002 | WO2002060122A2 Vehicle audio system |
| 08/01/2002 | US20020103619 Statistics generator system and method |
| 08/01/2002 | US20020102001 Sound quality regulation apparatus |
| 08/01/2002 | US20020101981 Method and apparatus for cancelling mult-channel echo |
| 07/31/2002 | EP1226572A1 Sound system and method for creating a sound event based on a modeled sound field |
| 07/31/2002 | EP1226454A1 Method to determine whether an acoustic source is near or far from a pair of microphones |
| 07/31/2002 | EP0941631B1 Architecture for a universal serial bus-based pc speaker controller |
| 07/31/2002 | CN1362001A Method for processing an audio signal |
| 07/31/2002 | CN1361972A Enhancement of near-end voice signals in an echo suppression system |
| 07/30/2002 | US6427015 Power supply for microphone |
| 07/25/2002 | WO2002058432A2 Acoustic source localization system and method |
| 07/25/2002 | WO2002058232A1 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 07/25/2002 | US20020097885 Acoustic source localization system and method |
| 07/24/2002 | EP1225786A1 Method and apparatus for implementing a class D driver and speaker system |
| 07/24/2002 | EP1225565A2 Sound controller that generates sound responsive to a situation |
| 07/24/2002 | EP1224837A2 Super directional beamforming design and implementation |
| 07/24/2002 | EP1224836A2 Parametric loudspeaker with improved phase characteristics |
| 07/24/2002 | EP1224037A2 Method and apparatus to direct sound using an array of output transducers |
| 07/24/2002 | EP0664071B1 Hearing aid having a microphone switching system |
| 07/24/2002 | CN2502476Y Special-purpose printed board for electromagnetic ultrasonic transducer |
| 07/24/2002 | CN2502475Y Bidirectional loudspeaker |
| 07/23/2002 | US6424720 Method and device for reducing multi-channel acoustic echo and adapting sound to space conditions |
| 07/23/2002 | US6424597 Multielements ultrasonic contact transducer |
| 07/23/2002 | CA2332140A1 Apparatus and methods for reducing noise audible from a speaker |
| 07/23/2002 | CA2139472C Method and apparatus for operating a generator supplying a high-frequency power to an ultrasonic transducer |
| 07/18/2002 | WO2001084880A3 Infra bass |
| 07/18/2002 | WO2001076063A9 Method for processing an input signal for producing an output signal and an application of said method in hearing aids and devices |
| 07/18/2002 | US20020094866 Sound controller that generates sound responsive to a situation |
| 07/18/2002 | US20020094093 Sound Collector |
| 07/18/2002 | US20020094091 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 07/18/2002 | DE10037373C1 Control method for electroacoustic transducer e.g. audio loudspeaker, has transducer coil electrodes coupled to same non-zero potential in rest phase |