Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 3 - Circuits for transducers
Patents for H04R 3 - Circuits for transducers (18,190)
10/2005
10/19/2005EP1587341A1 Audio output level setting method and device
10/19/2005EP1587276A2 Universal microphone for secure radio communication
10/19/2005EP1587230A2 System and method for management and control of audio-related equipment
10/19/2005EP1587229A2 System for node structure determination in an audio-related system
10/19/2005EP1587228A2 Communication protocol for audio system
10/19/2005EP1587064A1 Method of and apparatus for reducing noise
10/19/2005EP1051700B1 Multielement ultrasonic contact transducer
10/19/2005CN2735693Y Microphone with MP3 capable of recording
10/19/2005CN1685760A Drive mechanism
10/19/2005CN1685397A Voice controlled system and method
10/19/2005CN1685336A Method for fast dynamic estimation of background noise
10/19/2005CN1684398A Mixing apparatus and mixing method,
10/19/2005CN1684189A Method of and apparatus for reducing noise
10/19/2005CN1224287C Multiple sampling rates string interference resistant array signal noise-removing method
10/18/2005US6957240 Method and apparatus for providing an error characterization estimate of an impulse response derived using least squares
10/13/2005WO2005096668A1 Method and system for reducing audible side effects of dynamic current consumption
10/13/2005WO2005096667A1 Method and system for data logging in a listening device
10/13/2005WO2005096268A2 Method for processing audio data, in particular in an ambiophonic context
10/13/2005WO2005094743A1 Method for preventing hearing impairment and ear protection device
10/13/2005US20050228650 Signal processing method and module
10/13/2005US20050226595 Audio-related system node instantiation
10/13/2005US20050226443 Method for RIAA correction of audio signal with use of transformer and capacitor
10/13/2005US20050226441 Speaker system
10/13/2005US20050226440 P.A. system installation method
10/13/2005US20050226439 Noise cancellation using virtually lossless sensing method
10/13/2005US20050226430 System for node structure discovery in an audio-related system
10/13/2005US20050226427 Audio amplification apparatus
10/13/2005US20050225497 Beam forming array of transducers
10/13/2005US20050223877 Sound system and method for creating a sound event based on a modeled sound field
10/13/2005DE202005009876U1 Acoustic signals head-phones system e.g. for reception of music, has cable-less headphones provided, in addition, with terminal for cable receiving acoustic signals
10/13/2005DE10312065B4 Verfahren und Vorrichtung zum Entmischen akustischer Signale Method and apparatus for de-mixing of acoustic signals
10/12/2005EP1585365A1 Polarization voltage setting of microphones
10/12/2005EP1585364A1 System for generating an ultrasonic beam
10/12/2005EP1585363A2 Improved audio frequency speaker
10/12/2005EP1585362A2 Method and system for reducing audible side effects of dynamic current consumption
10/12/2005EP1585360A1 Power supply of phantom power supplied microphones
10/12/2005EP1585359A1 Remote control of phantom power supplied microphones
10/12/2005EP1585241A2 System for audio related equipment management
10/12/2005EP1585240A2 System and method for communication among audio-related device
10/12/2005EP1584217A1 Set-up method for array-type sound system
10/12/2005EP1584215A1 Loudspeaker system with extended output and field cancellation
10/12/2005CN2733795Y Horn sound source input switching structure
10/12/2005CN1682566A Calibrating a first and a second microphone
10/12/2005CN1682444A Integrated circuit with automatic polarity detection and configuration
10/12/2005CN1682441A Electrical impedance based audio compensation in audio devices and methods therefor
10/12/2005CN1681204A Sound signal processing apparatus and sound signal processing method
10/12/2005CN1223109C Enhancement of near-end voice signals in an echo suppression system
10/12/2005CN1223108C Echo canceling method and echo canceller
10/11/2005USRE38822 Circuit, audio system and method for processing signals, and a harmonics generator
10/11/2005US6954745 Signal processing system
10/11/2005US6954675 Audio chip with switchable audio output pathways
10/06/2005WO2005094124A1 Fader device
10/06/2005WO2005094119A1 Sound quality regulator
10/06/2005WO2005094118A1 Oscillation echo canceller system
10/06/2005US20050222719 In-vehicle mount type AV system and program
10/06/2005US20050221867 Handheld device loudspeaker system
10/06/2005US20050221792 Sound-based proximity detector
10/06/2005US20050220314 Polarization voltage setting of microphones
10/06/2005US20050220313 Howling frequency component emphasis method and apparatus
10/06/2005US20050220311 Method and apparatus to generate an audio beam with high quality
10/06/2005US20050219564 Image forming device, pattern formation method and storage medium storing its program
10/06/2005DE102004012515A1 Control module for an auto audio appliance like a car radio or a hands-free mobile telephone has a loudspeaker for sound output, a socket and signal processors
10/06/2005DE102004012209A1 Noise reducing method for speech recognition system in e.g. mobile telephone, involves selecting noise models based on vehicle parameters for noise reduction, where parameters are obtained from signal that does not represent sound
10/06/2005CA2561021A1 Oscillation echo canceller system
10/06/2005CA2480953A1 Signal processing method and module
10/05/2005EP1583393A2 Method and system for data logging in a listening device
10/05/2005EP1583392A1 Audio information support system
10/05/2005EP1582085A2 Audio speaker crossover having two or more filter housings
10/05/2005CN2731889Y 多媒体装置 Multimedia devices
10/05/2005CN2731888Y Self-adaptive mic speed amplifier
10/05/2005CN2731887Y Built-in regulating multi-channel mic amplifier
10/05/2005CN2731885Y Mic able to download, store and play karaoke songs
10/05/2005CN2731884Y Mic able to download, store and play karaoke songs
10/05/2005CN2731883Y Mic able to download, store and play karaoke songs
10/05/2005CN2731837Y Circuit able to eliminate cracking noise of hand-held appliance
10/05/2005CN1679311A Telecommunication terminal comprising a memory for storing acoustic effect data
10/05/2005CN1678136A Power supply of phantom power supplied microphones
10/05/2005CN1678135A Remote control of phantom power supplied microphones
10/05/2005CN1678134A Polarization voltage setting of microphones
10/05/2005CN1678130A Headphone
10/05/2005CN1678129A Howling frequency component emphasis method and apparatus
10/05/2005CN1677545A Digital audio-frequency data reproducing device and integrated circuit device
10/04/2005US6952672 Audio source position detection and audio adjustment
09/2005
09/30/2005CA2462497A1 Method and system for data logging in a listening device
09/30/2005CA2462463A1 Method and system for reducing audible side effects of dynamic current consumption
09/29/2005WO2005091678A1 A method and system for processing sound signals
09/29/2005WO2005091676A1 Listening device with two or more microphones
09/29/2005WO2005091672A1 System for limiting loudspeaker displacement
09/29/2005WO2005091671A1 Volume control method, volume controller, volume control program, electronic apparatus
09/29/2005WO2005067342B1 Method for adjusting adaptation control of adaptive interference canceller
09/29/2005US20050216263 Methods and systems for intelligibility measurement of audio announcement systems
09/29/2005US20050216258 Sound collecting mehtod and sound collection device
09/29/2005US20050213785 Piezoelectric speaker, speaker system employing it, and electronic apparatus employing piezoelectric speaker
09/29/2005US20050213782 Voice amplifier for mask
09/29/2005US20050213780 Dynamic equalizing
09/29/2005US20050213778 System for detecting and reducing noise via a microphone array
09/29/2005US20050213774 Headphoning
09/29/2005US20050213773 Noise cancellation system and headphone therefor
09/29/2005US20050213771 Propagating sound information to acoustically isolated environments
09/29/2005US20050213432 Array device and mobile terminal
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