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)
09/2012
09/20/2012WO2012123898A2 Sound processing based on confidence measure
09/20/2012WO2012024144A9 Method and system for controlling distortion in a critical frequency band of an audio signal
09/20/2012US20120237061 Process for manufacturing a membrane microelectromechanical device, and membrane microelectromechanical device
09/20/2012US20120237058 Apparatus
09/20/2012US20120237055 Method for dubbing microphone signals of a sound recording having a plurality of microphones
09/20/2012US20120237043 Surface Texture Recording With Microphone
09/20/2012US20120237040 System and Method for Automated Audio Mix Equalization and Mix Visualization
09/20/2012DE102007002920B4 Verfahren zur Bestimmung der Membranengeschwindigkeit eines dynamischen Lautsprechers Method for determining the speed of a dynamic loudspeaker membrane
09/20/2012CA2830410A1 Light-based detection for acoustic applications
09/19/2012EP2501156A1 Electrostatic speaker
09/19/2012EP2501155A2 High density wireless system
09/19/2012EP2501154A1 Microphone unit and voice input device provided therewith
09/19/2012CN202444621U Filter for universal hearing aid
09/19/2012CN202444611U English listening interference preventer
09/19/2012CN202444610U Adaptive-adjustment sound control system
09/19/2012CN202444609U Anti-interference microphone circuit and circuit board thereof
09/19/2012CN202444597U Earphone public Micro USB interface circuit
09/19/2012CN102687529A An apparatus
09/19/2012CN102685658A Laboratory playback device and method of actual noise field
09/19/2012CN102685644A Signal processing device and signal processing method
09/19/2012CN102685643A Passive Sound Pressure Level Limiter with Balancing Circuit
09/19/2012CN102685642A Loudspeaker protection circuit capable of preventing direct current overload for audio power amplifier
09/19/2012CN102685641A Miniature microphone reading circuit and reading method
09/19/2012CN102685640A Anti-secret leakage device for passive sound box
09/19/2012CN102685639A An electronic device and an audio accessory having a plurality of passive switches for controlling the audio device
09/19/2012CN102685638A Method and apparatus for outputting audio signal
09/19/2012CN102685637A Signal processing device and signal processing method
09/19/2012CN102685636A Voice-frequency circuit
09/19/2012CN102685635A Speaker module and portable electronic device with same
09/19/2012CN102682765A Expressway audio vehicle detection device and method thereof
09/19/2012CN101777372B Reproduction device and reproduction method
09/19/2012CN101394679B Sound source positioning system and method
09/19/2012CN101373961B Signal processing device and signal processing method
09/18/2012US8271288 Sound masking system and masking sound generation method
09/18/2012US8270632 Sound source localization system and method
09/13/2012WO2012122132A1 Dynamic distribution of acoustic energy in a projected sound field and associated systems and methods
09/13/2012WO2012120815A1 Howling detection device, howling suppressing device and method of detecting howling
09/13/2012WO2012119610A1 Method for driving a condenser microphone
09/13/2012US20120230514 Signal processing device and signal processing method
09/13/2012US20120230513 Signal processing device and signal processing method
09/13/2012US20120230512 Audio Zooming Process within an Audio Scene
09/13/2012US20120230511 Microphone array with rear venting
09/12/2012EP2498515A2 Audio apparatus, audio signal transmission method, and audio system
09/12/2012EP2498511A1 Signal processing device and signal processing method
09/12/2012CN202435574U Line-control earphone for mobile terminal
09/12/2012CN202435570U Earphone device
09/12/2012CN1943273B Sound image localization controller
09/12/2012CN102668600A Audio monitoring system
09/12/2012CN102665158A Ground wire noise eliminating circuit
09/11/2012US8265304 Microphone suitable for professional live performance
09/11/2012US8265298 Loudspeaker system
09/07/2012WO2012119043A1 Voice activation system and method and communication system and method using the same
09/07/2012WO2012117452A1 Electronic apparatus, speaker, communication system, communication control method of electronic apparatus and program
09/07/2012WO2012116720A1 Hearing aid with an h-bridge output stage and a method of driving an output stage
09/07/2012CA2828263A1 Hearing aid with an h-bridge output stage and a method of driving an output stage
09/06/2012US20120224723 Condenser Microphone
09/06/2012US20120224722 Method for driving a condenser microphone
09/06/2012US20120224716 Sound pickup device
09/06/2012US20120224715 Noise Adaptive Beamforming for Microphone Arrays
09/06/2012US20120224714 Host mode for an audio conference phone
09/05/2012EP2494792A2 Speech enhancement method and system
09/05/2012EP2494790A1 Self steering directional loud speakers and a method of operation thereof
09/05/2012CN202425020U Controllable balanced pre-distortion circuit
09/05/2012CN202425019U Automatic digital camera lens motor noise judging device
09/05/2012CN202425018U Earphone terminal interface circuit and set top box with the same
09/05/2012CN202425017U Separate power supply circuit for power supplies of automobile horns
09/05/2012CN202425016U Circuit for identifying earphone type intelligently
09/05/2012CN202425015U Sound control circuit for digital photo frame
09/05/2012CN202425014U Sound driving system
09/05/2012CN1898943B Device and method for processing an input signal
09/05/2012CN102656903A Audio processing device
09/05/2012CN102656807A Self-discovery of an RF configuration for a wireless system
09/05/2012CN102655620A Acoustic apparatus, acoustic adjustment method and program
09/05/2012CN102655614A Novel wireless-surrounded sound box
09/05/2012CN101552939B In-vehicle sound quality self-adapting active control system and method
09/05/2012CN101346896B Echo suppressing method and device
09/05/2012CN101179871B Earphone and audio play device
09/04/2012US8259963 Microphone assembly with P-type preamplifier input stage
09/04/2012US8259959 Toroid microphone apparatus
08/2012
08/30/2012WO2012116083A2 Systems and methods for acoustic echo cancellation with wireless microphones and speakers
08/30/2012WO2012115303A1 Method for delivering sound tracking movement of object using directional speaker
08/30/2012WO2012115205A1 Approaching vehicle detection device and approaching vehicle detection method
08/30/2012WO2012114946A1 Audio processing device, audio processing method, and program
08/30/2012WO2012114696A1 Diffracted sound reduction device, diffracted sound reduction method, and filter coefficient determination method
08/30/2012WO2012114159A1 A transducer apparatus
08/30/2012WO2012114155A1 A transducer apparatus with in-ear microphone
08/30/2012US20120219160 Variable Noise Masking During Periods of Substantial Silence
08/30/2012US20120218371 Satellite Microphone Array for Video Conferencing
08/30/2012DE102012101285A1 Sensor mit beweglichen Teilen und Vorspannung Sensor with moving parts and bias
08/30/2012DE102009003582B4 Audio-Röhrenverstärker, Stereo- oder Multikanal-Verstärkeranordnungsowie Verfahren Audio tube amplifier, stereo or multi-channel amplifier arrangement well as process
08/29/2012EP2493211A2 Headphone apparatus and sound reproduction method for the same
08/29/2012EP2493071A1 Multiband compressor
08/29/2012EP2492912A1 Sound processing apparatus, sound processing method and hearing aid
08/29/2012EP2491730A1 Audio monitoring system
08/29/2012EP2491649A1 Digitally controlled ac protection and attenuation circuit
08/29/2012CN202406284U Multimedia stereo
08/29/2012CN202406283U Volume regulating circuit for sound system
08/29/2012CN202406282U Multifunctional integrated one-piece sound
08/29/2012CN202406281U Volume controller with manual control
08/29/2012CN202406280U Embedded smart earphone interface circuit
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