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)
10/2010
10/06/2010CN101123830B Device and method for processing audio frequency signal
10/05/2010US7809145 Ultra small microphone array
09/2010
09/30/2010WO2010109711A1 Audio processing device, audio processing method, and program
09/30/2010WO2010109708A1 Pickup signal processing apparatus, method, and program
09/30/2010WO2010109614A1 Audio signal processing device and audio signal processing method
09/30/2010WO2010075035A3 A vehicular microphone system and method for post processing optimization of a microphone signal
09/30/2010WO2010073212A3 Method of and apparatus for planar audio source tracking
09/30/2010US20100246841 Soundbridge test system
09/30/2010US20100246834 Wind recognition system and method for wind recognition using microphone
09/30/2010US20100245059 Wildlife dislodging device
09/29/2010EP2234416A1 Video/audio output system
09/29/2010CN201594906U Vehicular audio control circuit
09/29/2010CN201594905U Noise isolating module for eliminating audio transmission noise and audio processor
09/29/2010CN201594904U Terminal
09/29/2010CN1856186B Acoustic apparatus, connection polarity determination method, and recording medium
09/29/2010CN1684189B Method of and apparatus for reducing noise
09/29/2010CN101848408A Built-in mobile phone speaker and operating method thereof
09/29/2010CN101848407A Sound effect power supply structure
09/29/2010CN101848288A Simulation noise reduction system and method for microphone
09/28/2010US7804971 Electrostatic ultrasonic transducer, ultrasonic speaker and display device
09/28/2010US7804968 Condenser microphone
09/28/2010US7804964 Device for protecting the hearing from loud MRT sounds
09/28/2010US7804963 Method and device for comparing signals to control transducers and transducer control system
09/28/2010US7803050 Tracking device with sound emitter for use in obtaining information for controlling game program execution
09/23/2010WO2010106957A1 Headphone
09/23/2010WO2010106820A1 Howling canceller
09/23/2010WO2010106734A1 Audio signal processing device
09/23/2010WO2010106711A1 Voice input device, voice recognition system and voice recognition method
09/23/2010WO2010106617A1 Audio adjusting device
09/23/2010WO2010106469A1 Audio processing in a processing system
09/23/2010US20100241428 Method and system for beamforming using a microphone array
09/23/2010US20100241259 Audiovisual reproduction system
09/23/2010US20100239102 Digital filtering in a class d amplifier system to reduce noise fold over
09/23/2010CA2755700A1 Headphone
09/22/2010CN201590887U Multiplex power amplifier
09/22/2010CN201590886U Startup and shutdown muting circuit
09/22/2010CN201590885U Guitar sound box
09/22/2010CN201590875U Speaker system and electronic device using same
09/22/2010CN101843115A Auditory sensibility correction device
09/22/2010CN101843114A Focusing on a portion of an audio scene for an audio signal
09/22/2010CN101841755A Closed-loop position-finding servo-type audio system of speaker vibration system
09/22/2010CN101841588A Audio interface device and electronic device using same
09/22/2010CN101105941B System for enhancing sound definition
09/21/2010US7801321 Condenser microphone
09/21/2010US7801315 Method and device for driving a directional speaker
09/21/2010US7801222 Coding image signal
09/16/2010WO2010104300A2 An apparatus for processing an audio signal and method thereof
09/16/2010WO2010104299A2 An apparatus for processing an audio signal and method thereof
09/16/2010WO2010104112A1 Speaker unit
09/16/2010WO2010103410A1 Microphone and accelerometer
09/16/2010US20100232623 Transducer device including feedback circuit
09/16/2010US20100232620 Sound processing device, correcting device, correcting method and recording medium
09/16/2010DE202010007785U1 Persönlicher Sender für ein Mikrofon Personal transmitter for a microphone
09/15/2010EP2229013A2 Speaker array apparatus and sound beam control method
09/15/2010EP2229011A2 Hearing assistance devices with echo cancellation
09/15/2010EP2229007A1 An apparatus for processing an audio signal and method thereof
09/15/2010EP2229006A1 Speaker line inspection device
09/15/2010CN201585117U Loudspeaker system with adjustable three-dimensional sound production directions
09/15/2010CN201585116U Multifunctional portable sound box
09/15/2010CN201585115U Player capable of supporting Ipod
09/15/2010CN201585114U Sound box
09/15/2010CN201585088U Portable type multifunctional digital sound
09/15/2010CN201578011U Mail prompting mail box
09/15/2010CN1933676B Method and apparatus for setting loudspeaker array utilizing reverse-phase
09/15/2010CN1929696B Method and device for loudspeaker array setting by using quadratic residue sequence phase delay
09/15/2010CN1612644B Parameter control method and parameter setting apparatus
09/15/2010CN101835071A Sound noise control circuit
09/15/2010CN101833975A Reproducing device and reproducing method
09/15/2010CN101833966A Reproducing device and reproducing method
09/15/2010CN101833965A Reproducing device and reproducing method
09/15/2010CN101288338B Voice reproducing method and reproducer using line array speaker unit
09/14/2010US7796768 Variable alignment loudspeaker system
09/14/2010US7796767 Howling detection method, device, and acoustic device using the same
09/14/2010CA2490845C Real-ear zoom hearing device
09/10/2010WO2010100873A1 Speaker with camera, signal processing device, and av system
09/09/2010US20100226512 Presentation audio system
09/09/2010US20100226507 Microphone Unit
09/09/2010DE102009012192A1 Class-D audio power amplifier has circuit with detachable thyristors, where frequency-asymmetrical protection thyristor system is provided on uncoupling condenser with half maximum frequency
09/09/2010DE102009003582A1 Audio tube amplifier has amplifier tube provided with output that is connected with output transformer, which has primary winding and an output winding
09/09/2010DE102006059138B4 Hörhilfe- und/oder Gehörschutzgerät mit einem Audio-Eingang Hearing aid and / or hearing protection device with an audio input
09/08/2010EP2227034A1 Microphone unit
09/08/2010CN201577187U Loudspeaker box with feedback killing function and sound mixer
09/08/2010CN201577186U Simple power amplifier circuit
09/08/2010CN201577185U Audio control circuit of semiconductor light-emitting device
09/08/2010CN201577184U Car horn volume control device based on AVR singlechip
09/08/2010CN201577178U Earphone with passive sound effect adjusting function
09/08/2010CN1698094B Apparatus for focusing ultrasonic acoustical energy within a liquid stream
09/08/2010CN1669356B Electronic devices, methods of operating the same, and computer program products for detecting noise in a signal based on a combination of spatial correlation and time correlation
09/08/2010CN101828407A Microphone array processor based on spatial analysis
09/08/2010CN101827299A DMX protocol-based power amplifying device
09/08/2010CN101827295A Wireless microphone and anti-interference method thereof
09/08/2010CN101827146A Device with terminal communication noise suppression function, method and communication terminal
09/08/2010CN101827087A Apparatus, method, and program for information processing
09/07/2010US7792313 High precision beamsteerer based on fixed beamforming approach beampatterns
09/07/2010CA2427784C Method for handling data of a hearing device and hearing device
09/03/2010CA2657009A1 Multi-media wireless system
09/02/2010WO2010099237A2 Speaker distortion reduction system and method
09/02/2010WO2010096905A1 Compact noise suppression circuit for small speakers
09/02/2010US20100220873 System, Method, and Apparatus for Adjusting an Output of a Transducer
09/02/2010US20100219981 Antenna including first and second radiating elements having substantially the same characteristic features
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