Patents for H04R 3 - Circuits for transducers (18,190)
01/2006
01/04/2006EP1612993A1 Method and arrangement for changing the operation mode of an agent of a management network
01/04/2006EP1611770A1 Volume control method and system
01/04/2006EP1518441B1 Device and method for suppressing a feedback
01/04/2006CN2750609Y Electroacoustic musical instrument sound box with tempo accompaniment
01/04/2006CN1717720A Acoustic processing system, acoustic processing device, acoustic processing method, acoustic processing program, and storage medium
01/04/2006CN1717117A Sound output device with compensating property
01/04/2006CN1717057A Coding image signal
01/04/2006CN1716986A Stereo microphone processing for teleconferencing
01/04/2006CN1714770A Hearing system
01/03/2006US6983264 Signal separation method and apparatus for restoring original signal from observed data
01/03/2006US6983055 Method and apparatus for an adaptive binaural beamforming system
01/03/2006US6983053 Method of selecting a frequency band of an output audio signal by a computer
01/03/2006US6983048 Multi-section decoding lens
12/2005
12/29/2005WO2005125273A1 Howling detector and its method
12/29/2005WO2005125272A1 Howling suppression device, program, integrated circuit, and howling suppression method
12/29/2005WO2005125271A1 In-ear monitoring system and method with bidirectional channel
12/29/2005WO2005125270A1 In-ear monitoring system and method
12/29/2005WO2005125269A1 First person acoustic environment system and method
12/29/2005WO2005125267A2 Airborne collection of acoustic data using an unmanned aerial vehicle
12/29/2005US20050286728 System and method of generating an audio signal
12/29/2005US20050286713 Distributed sound enhancement
12/29/2005US20050286346 High intensity directional electroacoustic sound generating system for communications targeting
12/29/2005DE202005015940U1 Loudspeaker enclosures switching arrangement for mobile hi-fi system, has two cables with quadripole connectors to connect enclosure having two loudspeakers with outputs of enclosure having four loudspeakers and amplifier when required
12/28/2005EP1250703B1 Noise reduction apparatus and method
12/28/2005EP1247350A4 Parametric audio system
12/28/2005CN1714601A Audio signal reproducing method and reproducing apparatus
12/28/2005CN1713782A Audio frequency magnetic conducted connection and connector thereof
12/28/2005CN1234064C 混合方法和混合装置 Mixing method and mixing apparatus
12/27/2005US6980665 Spectral enhancement using digital frequency warping
12/27/2005US6980663 Process and device for compensating for signal loss
12/27/2005US6980661 Method of and apparatus for producing apparent multidimensional sound
12/22/2005WO2005122638A1 Ultrasonic transducer and ultrasonic speaker using the same
12/22/2005WO2005122633A1 Ultrasonic transducer and ultrasonic speaker using the same
12/22/2005US20050283261 Speaking thermometer
12/22/2005US20050281423 In-ear monitoring system and method
12/22/2005US20050281422 In-ear monitoring system and method with bidirectional channel
12/22/2005US20050281421 First person acoustic environment system and method
12/22/2005US20050281416 Infra bass
12/22/2005US20050281415 Microphone array processing system for noisy multipath environments
12/22/2005US20050281413 Parametric audio system for operation in a saturated air medium
12/22/2005US20050281410 Processing audio data
12/22/2005US20050280526 Addressable smart speaker
12/21/2005EP1606971A1 Loudspeaker equipped with measurement of the movement of the loudspeaker unit and a method for measuring the movement of the loudspeaker unit in a loudspeaker
12/21/2005EP1606970A1 Circular microphone array for multi channel audio recording
12/21/2005EP1060470B1 Method and apparatus for distributed, agile calculation of beamforming time delays and apodization values
12/21/2005EP0809906B1 Very low power cordless headset system
12/21/2005CN1711799A 阵列装置以及便携式终端 Array apparatus and a portable terminal
12/21/2005CN1233196C Hand-free earphone capable of being used for mobile phone and external blue-tooth module set at same time
12/21/2005CN1233195C Band width expanding device
12/15/2005WO2005120132A1 Acoustical signal processing apparatus
12/15/2005WO2005120126A1 Method and apparatus for loudspeaker equalization
12/15/2005US20050278764 Home entertainment apparatus and method
12/15/2005US20050276426 Information processing apparatus, volume control method, recording medium, and program
12/15/2005US20050276424 Computer speaker beep routing
12/15/2005US20050276423 Method and device for receiving and treating audiosignals in surroundings affected by noise
12/14/2005EP1183848B1 System and method for near-end talker detection by spectrum analysis
12/14/2005CN1707993A Universal microphone for secure radio communication
12/13/2005US6975735 Sound collecting device minimizing electrical noise
12/13/2005US6975734 Audio apparatus of negative driving with adaptive gain control
12/08/2005WO2005117486A1 Plasma display device
12/08/2005WO2005117485A1 Volume adjusting apparatus
12/08/2005WO2005117483A1 Audio apparatus and method
12/08/2005US20050273188 Method and apparatus for improving characteristics of acoustic and vibration transducers
12/08/2005US20050271230 Array speaker apparatus with projection screen
12/08/2005US20050271227 Speaker system for picture receiver and speaker installing method
12/08/2005US20050271223 Audio signal reproducing method and reproducing apparatus
12/08/2005US20050271222 Frequency shifter for use in adaptive feedback cancellers for hearing aids
12/08/2005US20050271221 Airborne collection of acoustic data using an unmanned aerial vehicle
12/08/2005US20050271220 Virtual microphones in electronic conferencing systems
12/08/2005US20050271216 Method and apparatus for loudspeaker equalization
12/08/2005US20050270906 Resonator device and circuits for 3-d detection/receiving sonic waves, even of a very low amplitude/frequency, suitable for use in cybernetics
12/08/2005US20050270214 Loudspeaker control circuit
12/08/2005DE102004021546A1 Electroacoustic transducer for loudspeaker with horn incorporates amplifier with negative output impedance and has power amplifier with negative feedback via resistor
12/08/2005DE10045703B4 Lautsprechervorrichtung Speaker device
12/07/2005EP1602260A2 Transducer assembly with modifiable buffer circuit and method for adjusting thereof
12/07/2005EP1602259A2 Digital filter and listening device
12/07/2005EP0723733B1 Microphone system for teleconferencing system
12/07/2005CN1706215A ESD protection circuit for condenser microphone
12/01/2005WO2005112602A2 Speaker with frequency directed dual drivers
12/01/2005US20050267762 Voice recording system, recording device, voice analysis device, voice recording method and program
12/01/2005US20050265563 Method for analyzing an acoustical environment and a system to do so
12/01/2005US20050265562 System and process for locating a speaker using 360 degree sound source localization
12/01/2005US20050265561 Method and apparatus to generate harmonics in speaker reproducing system
12/01/2005US20050265560 Indoor communication system for a vehicular cabin
12/01/2005DE10320209B4 Audiosignal-Erkennungssystem An audio signal recognition system
12/01/2005DE102004023054A1 Spatial-filter for headsets e.g. for playback of CDs, reduces cophasal sound components in both ears
11/2005
11/30/2005EP1601226A1 High performance audio amplifier
11/30/2005EP1600941A1 Dip filter frequency characteristic decision method
11/30/2005EP1600035A1 Sound beam loudspeaker system
11/30/2005EP1599742A1 Method for detection of own voice activity in a communication device
11/30/2005CN2744113Y Operating panel structure for hybrid system and mixing system, and controlling apparatus for mixing system
11/30/2005CN2744105Y Noise-resistant earphone and matching device with low cost and high efficience
11/29/2005US6970571 Low cost hearing protection device
11/28/2005CA2715742A1 Circuit, system and method for adjusting an audio signal
11/24/2005US20050261039 Condenser microphone
11/24/2005US20050259841 Narrow opening electroacoustical transducing
11/24/2005US20050259837 Sound collecting device minimizing electrical noise
11/24/2005US20050259835 Condenser microphone
11/24/2005US20050259834 Voice controlled system and method
11/24/2005US20050259832 Sound pickup method and apparatus, sound pickup and reproduction method, and sound reproduction apparatus