Patents for H04R 3 - Circuits for transducers (18,190)
02/2006
02/15/2006CN1735282A Device and method for driving speaker
02/15/2006CN1735280A Screen display type wireless microphone
02/15/2006CN1732872A Bidirectional digital modulating multi-channel artificial cochlea system
02/15/2006CN1732871A Two-way multi-channel artificial cochlea system with on-chip signal processor
02/15/2006CN1242551C Portable multi-channel amplifier
02/14/2006US6999920 Exponential echo and noise reduction in silence intervals
02/14/2006US6999594 Method and apparatus for reduction of unwanted feedback
02/14/2006US6999593 System and process for robust sound source localization
02/14/2006US6999378 Parallel GCS structure for adaptive beamforming under equalization constraints
02/09/2006US20060029242 System and method for integral transference of acoustical events
02/09/2006US20060029238 Device and method for driving speaker
02/09/2006US20060028751 Drive mechanism
02/08/2006EP1624718A1 Array speaker system
02/08/2006EP1624717A1 Microphone speaker body forming type of bi-directional telephone apparatus
02/08/2006EP1624683A2 Method for coding image signals
02/08/2006EP1623601A1 Method and apparatus for substantially improving power supply rejection performance in a miniature microphone assembly
02/08/2006EP1623600A2 Method and system for communication enhancement ina noisy environment
02/08/2006EP1623599A1 Detection device
02/08/2006EP1623598A1 Microphone array having a second order directional pattern
02/08/2006CN2757282Y Sedan acoustic circuit capacitor with dynamic display
02/08/2006CN1241453C Module low voice array system
02/07/2006US6996283 Block size assignment using local contrast ratio
02/07/2006US6996243 Loudspeaker with shaped sound field
02/07/2006US6996240 Loudspeaker unit adapted to environment
02/02/2006US20060023899 Wireless microphone with display function
02/01/2006EP1622418A1 Digital audio frequency optimizer
02/01/2006EP1621046A1 Loudspeaker system for virtual sound synthesis
02/01/2006EP1621043A2 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation
02/01/2006EP1620917A2 Multi-band omni directional antenna
02/01/2006CN2755892Y Talking microphone without contact card
02/01/2006CN2755891Y Portable loudspeaker device
02/01/2006CN1728889A Intelligent detection and adjustment system for sound equipment
02/01/2006CN1728886A Microphone possessing function for cancelling out echo
02/01/2006CN1728650A Method and arrangement for changing the operation mode of an agent of a management network
02/01/2006CN1727911A Acoustic control positioning system and method thereof
01/2006
01/31/2006US6993141 System for distributing a signal between loudspeaker drivers
01/31/2006CA2291884C Click-free muting circuit for headset
01/26/2006WO2006009593A1 Addressable smart speaker
01/26/2006WO2006009028A1 Sound reproducing device and sound reproducing system
01/26/2006WO2006009004A1 Sound reproducing system
01/26/2006DE10254407B4 Vorrichtung und Verfahren zum Unterdrücken einer Rückkopplung Apparatus and method for suppressing a feedback
01/25/2006CN2754300Y Radiofrequency receiving type ceiling loudspeaker system acoustics
01/25/2006CN1725766A Earphone circuit and hand-free earphone device of mobile terminal appratus
01/24/2006US6990207 Active noise control system
01/24/2006US6990206 Integrating apparatus
01/19/2006WO2006005948A1 Directional microphone
01/19/2006WO2006005938A1 Portable speaker system
01/19/2006US20060015200 Digital mixer capable of programming mixer configuration, mixer configuration editing apparatus, and control application program to control digital mixer
01/19/2006US20060014570 Mobile communication terminal
01/19/2006US20060013567 Electronic device, video camera apparatus, and control method therefor
01/19/2006US20060013416 Stereo microphone processing for teleconferencing
01/19/2006US20060013415 Voice activation and transmission system
01/19/2006US20060013412 Method and system for reduction of noise in microphone signals
01/19/2006US20060013407 Methods and apparatus for sound compensation in an acoustic environment
01/19/2006US20060013406 Method and apparatus for creating a virtual third channel in a two-channel amplifier
01/19/2006DE102004032223A1 Audiovisuelle Anordnung Audio-visual arrangement
01/19/2006DE102004028664A1 Schwingungskörper eines Lautsprechersystems Body vibration of a speaker system
01/19/2006CA2847633A1 Acoustic telemetry transceiver
01/18/2006EP1617704A2 Receiver with multiple drive coils
01/18/2006EP1617701A1 Equalizable active electroacoustic device for panels, and method of converting the panels and assembling the devices
01/18/2006EP1617580A2 Digital mixer capable of programming the mixer configuration, mixer configuration editing apparatus, and program to control the mixer
01/18/2006EP1616459A2 Systems and methods for interference suppression with directional sensing patterns
01/18/2006CN2753085Y Loudspeaker structure of potting
01/18/2006CN2753084Y Earphone with posture prompting function
01/18/2006CN2752903Y 削波状态显示装置 Clipping display device
01/18/2006CN1722734A A method for automatic configuration of terminal equipment
01/18/2006CN1722227A Digital mixer, mixer configuration editing apparatus, and mixer readable medium
01/18/2006CN1237845C Stereo signal processing device
01/18/2006CN1237732C System and method for generating virtual speaker by using parametric sound system
01/18/2006CN1237724C Method and means for receiving and simultaneous reproduction of digital transmission signals
01/18/2006CN1237708C Crackle suppressing circuit and sound output amplifier
01/17/2006US6987992 Multiple wireless microphone speakerphone system and method
01/17/2006US6987949 Wireless microphone system, voice receiving apparatus, and wireless microphone
01/17/2006US6987858 Signal processing method, program, and signal processing apparatus
01/17/2006US6987857 Focus fader with dual optocouplers
01/17/2006US6987856 Binaural signal processing techniques
01/12/2006WO2006004099A1 Reverberation adjusting apparatus, reverberation correcting method, and sound reproducing system
01/12/2006WO2005004533A8 Sound reproduction systems for use by adjacent users
01/12/2006US20060008110 Receiver with multiple drive coils
01/12/2006US20060008101 Spectral enhancement using digital frequency warping
01/12/2006US20060008097 Detection and control of diaphragm collapse in condenser microphones
01/12/2006DE10351793B4 Adaptive Filtervorrichtung und Verfahren zum Verarbeiten eines akustischen Eingangssignals Adaptive filtering apparatus and method for processing an acoustic input signal
01/11/2006EP1615463A2 Adaptive howling canceller
01/11/2006EP1614324A1 Condenser microphone employing wide band stop filter and having improved resistance to electrostatic discharge
01/11/2006EP1614322A2 Method and apparatus for reducing an interference noise signal fraction in a microphone signal
01/11/2006CN1720760A Array speaker apparatus with projection screen
01/11/2006CN1719948A Receiver with multiple drive coils
01/11/2006CN1719431A Digit audio frequency optimization apparatus
01/11/2006CN1719362A Supporter for external loudspeaker of mobile communication terminal and its operating method
01/10/2006US6985594 Voice-to-remaining audio (VRA) interactive hearing aid and auxiliary equipment
01/10/2006US6985592 Multipurpose earphone set
01/10/2006US6985092 Robust system for transmitting and receiving map data
01/10/2006US6984990 Apparatus for detecting connection state between stereo earphone plug and corresponding jack of mobile communication terminal
01/05/2006US20060002575 Microphone device
01/05/2006US20060002570 Noise canceling microphone
01/05/2006US20060002567 Audio output mode setting apparatus and an audio output mode setting method
01/05/2006US20060002478 Coding image signal
01/05/2006DE102004027803A1 Kopfhörer Headphone
01/04/2006EP1613125A2 Microphone assembly comprising magnetically activable element for signal switching and field indication
01/04/2006EP1613124A2 Processing of stereo microphone signals for teleconferencing