| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 01/29/2003 | EP1279316A2 Infra bass |
| 01/23/2003 | WO2003007604A2 A method and apparatus for performing real-time storage of ultrasound video image information |
| 01/23/2003 | WO2003007500A1 Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus, and transfer function calculation apparatus |
| 01/23/2003 | US20030016835 Adaptive close-talking differential microphone array |
| 01/23/2003 | US20030016588 Method for directional location and locating system |
| 01/22/2003 | EP1278398A2 Distributed audio network using networked computing devices |
| 01/22/2003 | EP1278396A2 Howling detecting and suppressing apparatus, method and computer program product |
| 01/22/2003 | EP1278395A2 Second-order adaptive differential microphone array |
| 01/22/2003 | EP1277372A1 Reception system for multisensor antenna |
| 01/22/2003 | EP0972426B1 Apparatus and method for bass enhancement |
| 01/22/2003 | CN1392687A Noise silencing method and device |
| 01/21/2003 | US6510224 Enhancement of near-end voice signals in an echo suppression system |
| 01/16/2003 | US20030014486 Distributed audio network using networked computing devices |
| 01/16/2003 | US20030012388 Howling detecting and suppressing apparatus, method and computer program product |
| 01/15/2003 | EP1275272A1 Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions |
| 01/15/2003 | EP1275267A2 A directional microphone assembly |
| 01/15/2003 | EP1274348A2 Systems and methods for reducing secondary hot spots in a phased array focused ultrasound system |
| 01/15/2003 | CN2531594Y Hands-free receiver with extended function module |
| 01/14/2003 | US6507659 Microphone apparatus for producing signals for surround reproduction |
| 01/14/2003 | US6506154 Systems and methods for controlling a phased array focused ultrasound system |
| 01/09/2003 | WO2003003789A2 Method and apparatus for minimizing latency in digital signal processing systems |
| 01/09/2003 | WO2003003572A1 Volume control in a communication device interface unit |
| 01/09/2003 | WO2003003349A1 Method for noise reduction and microphone array for performing noise reduction |
| 01/09/2003 | WO2001072085A3 Directional processing for multi-microphone system |
| 01/09/2003 | US20030009329 Directionally sensitive audio pickup system with display of pickup area and/or interference source |
| 01/09/2003 | US20030007650 Capacitor microphone |
| 01/09/2003 | CA2451999A1 Method and apparatus for minimizing latency in digital signal processing systems |
| 01/08/2003 | EP1273100A1 Balanced circuit arrangement |
| 01/08/2003 | EP1273002A2 Rhythmic apparatus, rhythmic accompaniment method and electronic transducer |
| 01/08/2003 | CN1390432A Anti-noise pickup |
| 01/08/2003 | CN1390430A Loudspeaker device |
| 01/08/2003 | CN1390079A Loudspeaker voltage doubler circuit |
| 01/07/2003 | US6504937 Amplifier circuit for electret microphone with enhanced performance |
| 01/07/2003 | US6504926 User control system for internet phone quality |
| 01/03/2003 | WO2003001843A2 Variable multi-dimensional apodization control for ultrasonic transducers |
| 01/03/2003 | WO2002025992A3 Loudspeaker driver |
| 01/03/2003 | WO2001087009A3 Gas flow sensor, speaker system and microphone |
| 01/02/2003 | US20030004732 Method, apparatus, and program for envelope generation, audio compression, and audio expansion |
| 01/02/2003 | US20030002694 Crossover filters and method |
| 01/02/2003 | US20030002693 Audio signal processing |
| 01/02/2003 | US20030002688 Volume regulating and monitoring system |
| 01/02/2003 | US20030002683 Voice-to-remaining audio (VRA) interactive center channel downmix |
| 01/02/2003 | US20030002590 Noise canceling method and apparatus |
| 01/02/2003 | EP1272004A2 Audio signal processing |
| 01/02/2003 | EP1269624A2 System and method of producing direct audio from a power supply |
| 01/02/2003 | EP1269576A1 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement |
| 01/01/2003 | CN1388956A Multi-device audio-video with common echo canceling |
| 12/27/2002 | WO2002104070A1 Device for monitoring musical performances and/or audio signals from video games or similar |
| 12/27/2002 | WO2002104068A1 Sound reproducing system |
| 12/27/2002 | WO2002104067A2 Systems and methods for sensing an acoustic signal using microelectromechanical systems technology |
| 12/27/2002 | WO2002082422A3 Active noise cancelling headset and devices with selective noise suppression |
| 12/27/2002 | WO2001076319A3 Method and apparatus for voice signal extraction |
| 12/27/2002 | CA2455390A1 Device for monitoring musical performances and/or audio signals from video games or similar |
| 12/26/2002 | US20020198455 Variable multi-dimensional apodization control for ultrasonic transducers |
| 12/26/2002 | US20020196951 System for automatically performing a frequency response equalization tuning on speaker of electronic device |
| 12/26/2002 | US20020196950 Method and apparatus for treating an audio signal |
| 12/26/2002 | US20020196078 Low pass filter for output of D-class amplifier |
| 12/25/2002 | CN1387698A Multiple driver, resonantly-coupled loudspeaker |
| 12/25/2002 | CN1387387A Oscillation preventing circuit |
| 12/24/2002 | US6498960 Receiver for digital audio broadcast |
| 12/24/2002 | US6498859 Microphone mount |
| 12/24/2002 | US6498853 Echo-cancelling optical microphone |
| 12/19/2002 | WO2002101728A1 Method and system for suppressing echoes and noises in environments under variable acoustic and highly fedback conditions |
| 12/19/2002 | WO2002100287A2 Dental treatment noise suppression |
| 12/19/2002 | WO2002076143A8 Solid angle cross-talk cancellation for beamforming arrays |
| 12/19/2002 | US20020193130 Noise suppression for a wireless communication device |
| 12/19/2002 | US20020191802 Systems and methods for sensing an acoustic signal using microelectromechanical systems technology |
| 12/19/2002 | DE10124699C1 Schaltungsanordnung zur Verbesserung der Verständlichkeit von Sprache enthaltenden Audiosignalen Circuit arrangement for improving the intelligibility of speech audio signals containing |
| 12/18/2002 | EP1266538A1 Spatial sound steering system |
| 12/18/2002 | EP1266467A1 Installation with piezoelectric element for equipping a structure and piezoelectric element for same |
| 12/18/2002 | CN2527046Y Power supply module for multimedia loud-speaker |
| 12/17/2002 | US6496586 Thin Loudspeaker |
| 12/17/2002 | US6496581 Coupled acoustic echo cancellation system |
| 12/12/2002 | US20020186855 Microphone |
| 12/11/2002 | CN1384603A Switchable voltage follower and bridge driving circuit unit with the follower |
| 12/05/2002 | WO2002098113A1 Self-configuring communication device interface unit |
| 12/05/2002 | US20020181723 Robot and controlling method of the same |
| 12/05/2002 | US20020181720 Method for analyzing an acoustical environment and a system to do so |
| 12/05/2002 | US20020181716 Audio reproduction apparatus |
| 12/05/2002 | US20020180630 Electronic volume circuit |
| 12/05/2002 | DE10120108A1 Method for equalizing a roll-off compensating filter in a stereo receiver with a stereo matrix feeds signals to inputs/outputs and a multiplex signal to the stereo matrix with a definite test signal. |
| 12/05/2002 | CA2448669A1 Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors |
| 12/04/2002 | EP1263262A2 Oscillation prevention circuit |
| 12/04/2002 | EP1261962A1 A method of improving the audibility of sound from a loudspeaker located close to an ear |
| 12/04/2002 | CN2524464Y Integrated sound sensing controller |
| 11/28/2002 | WO2002095975A1 Echo processing apparatus |
| 11/28/2002 | WO2002095936A1 Audio output amplifier |
| 11/28/2002 | WO2002095935A1 Audio output amplifier |
| 11/28/2002 | US20020176589 Noise reduction method with self-controlling interference frequency |
| 11/28/2002 | US20020176588 Oscillation prevention circuit |
| 11/28/2002 | US20020176587 Method of generating an electrical output signal and acoustical/electrical conversion system |
| 11/28/2002 | US20020176556 Intercom system for mansion/apartment house |
| 11/28/2002 | US20020176004 Video camera |
| 11/28/2002 | DE10209807A1 Two-way intercom system for living accommodation and lodgings, each domicile-related main station has speech circuit with load impedance connected to common bus |
| 11/27/2002 | EP1261233A1 An anti-noise pick-up |
| 11/26/2002 | US6487529 Audio processing device, receiver and filtering method for filtering a useful signal and restoring it in the presence of ambient noise |
| 11/22/2002 | CA2386004A1 Oscillation prevention circuit |
| 11/21/2002 | WO2002093973A1 Apparatus for electric to acoustic conversion |
| 11/21/2002 | WO2002093895A1 Method for adaptive control of multichannel acoustic echo cancellation system and device therefor |
| 11/21/2002 | WO2002093773A1 Parametric virtual speaker and surround-sound system |