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)
04/2014
04/08/2014US8693708 System for operating a device for producing an audible alarm
04/08/2014US8693707 Signal processing circuit
04/08/2014US8693703 Method of combining at least two audio signals and a microphone system comprising at least two microphones
04/03/2014WO2014050771A1 Sound guidance network system
04/03/2014WO2014050439A1 Acoustic generator, acoustic generation device, and electronic apparatus
04/03/2014WO2014048175A1 Hearing-aid and anti-noise method and apparatus for bluetooth earphone
04/03/2014US20140093102 Switchable attenuation circuit for mems microphone sy
04/03/2014US20140093100 User terminal apparatus, electronic device, and method for controlling the same
04/03/2014US20140093094 Method and device for personalized voice operated control
04/03/2014US20140093093 System and method of detecting a user's voice activity using an accelerometer
04/03/2014US20140093089 Mems speaker device with an electronic test circuit
04/03/2014DE102013219177A1 Fahrzeug-Audioverarbeitungseinheit Car audio processing unit
04/02/2014EP2712484A1 Electronic devices for reducing acoustic leakage effects and related methods and computer program products
04/02/2014CN203523026U Passive filter circuit having equalization sound dividing and spread spectrum tuning functions
04/02/2014CN203523025U Voice synthesis integrated circuit
04/02/2014CN203523024U Intelligent multifunctional headphone
04/02/2014CN203523023U Amplitude modulatable type wireless microphone
04/02/2014CN203523022U Laptop computer audio amplification circuit
04/02/2014CN203523021U Wireless WIFI digital audio system
04/02/2014CN203523020U Audio power amplifier circuit and wireless loudspeaker box
04/02/2014CN203523019U Two-way audio output circuit and sound box
04/02/2014CN203523018U Audio frequency connecting device
04/02/2014CN203523017U Earphone automatic adaption circuit
04/02/2014CN203523016U Audio-processing-based sound equipment
04/02/2014CN203522992U Double mode automatic switching line control earphone
04/02/2014CN203522988U Microphone apparatus and terminal
04/02/2014CN203522970U Rotatable portable sound equipment
04/02/2014CN203522664U Tone control circuit
04/02/2014CN103702263A Signal processor for musical performance of wind instrument using a mute
04/02/2014CN103702262A Amplitude modulation wireless microphone for computer
04/02/2014CN103702261A Low power consumption wireless microphone for office meeting
04/01/2014US8687823 Microphone interface and method of operation
04/01/2014US8687820 Stereo microphone processing for teleconferencing
04/01/2014CA2691308C Method and system for controlling a maximum signal level output to headphones coupled to a wireless device
03/2014
03/27/2014WO2014045705A1 Protection device for sound signal converter
03/27/2014WO2014045123A2 Control and protection of loudspeakers
03/27/2014WO2014044954A1 Acoustic enclosure comprising input and output connection means linked together in such a way as to transmit inter alia electronic signals
03/27/2014US20140086429 Single chamber headphone apparatus
03/27/2014US20140086423 Multiple device noise reduction microphone array
03/27/2014DE112012002919T5 Mikrofonpufferschaltung mit Eingangsfilter Microphone buffer circuit with input filter
03/27/2014DE102008057283B4 Anti-Stoßverfahren für ein Verarbeiten kapazitiver Sensorsignale Anti-shock processing method for a capacitive sensor signals
03/26/2014EP2712208A1 Audio processing device, audio processing method, and recording medium on which audio processing program is recorded
03/26/2014EP2712207A1 Audio signal broadcasting system and electronic apparatus
03/26/2014CN203504753U Simple hearing aid
03/26/2014CN203504740U Sound equipment control circuit
03/26/2014CN203504739U Microphone circuit of computer
03/26/2014CN203504738U Wireless microphone with low cost
03/26/2014CN203504737U Wireless microphone circuit with low energy consumption
03/26/2014CN203504736U Wifi音箱 Wifi Speaker
03/26/2014CN203504623U Voice processing circuit for communication equipment
03/26/2014CN103688555A Reduction of distortion
03/26/2014CN103687272A Integrated circuit board of contactless electronic horn
03/26/2014CN103686566A Acoustic transducer apparatus and method for manufacturing the same, sensing device and method for determining an acoustic signal
03/26/2014CN103686543A Adaptive noise filtration aerial photography device
03/26/2014CN103686542A 扬声器控制系统 Speaker Control System
03/26/2014CN103686541A Voice signal amplifying circuit applied to computer microphone
03/26/2014CN103686540A Active wireless network sound equipment and use method thereof
03/26/2014CN103686539A Simulation low-frequency voice frequency overtone generation circuit
03/26/2014CN103686538A Singing scoring voice collector
03/26/2014CN103686537A Audio wireless transmission method and acoustic device
03/26/2014CN103686536A Multi-identical-type-audio-data-interface sound equipment
03/26/2014CN103686535A Terminal capable of automatically recognizing headset microphone and karaoke devices, and recognition method thereof
03/26/2014CN103686534A Method and apparatus for detecting insertion of external audio outputting device in electronic device
03/26/2014CN103686533A System and method for transmitting a radio frequency signal through a speaker coil
03/26/2014CN103686532A Audio device and output method thereof
03/26/2014CN103686531A Earphone connection interface, terminal including the same, and method of operating terminal
03/26/2014CN103686530A Method for processing an audio signal with modeling of the overall response of the electrodynamic loudspeaker
03/26/2014CN103686529A Voltage supply circuit, audio output apparatus, and voltage supplying method
03/26/2014CN103686517A Earphone volume adjustment circuit
03/26/2014CN103686516A Bluetooth headset capable of sharing audios and control method thereof
03/26/2014CN103686508A Automatic power adjusting headphones
03/26/2014CN103686502A 5.1 sound track Bluetooth noise cancelling headset
03/26/2014CN103686501A Noise cancelling bluetooth headset
03/26/2014CN103684302A Volume control device and method
03/26/2014CN103680546A Audio playing method, terminal and system
03/26/2014CN103676827A System and method for remotely controlling audio equipment
03/26/2014CN102438195B Timesharing simulation system for passenger compartment noise sound field of high-speed vehicle and simulation method
03/26/2014CN102196336B Audio power management system and method
03/25/2014US8683541 Audiovisual reproduction system
03/25/2014US8682007 Condenser microphone unit
03/25/2014US8682003 Equipment with optical paths for noise cancellation signals
03/25/2014CA2664886C Enclosure and enclosure system for a speaker of an electronic device
03/20/2014WO2014043543A1 Personal audio system and method
03/20/2014WO2014042715A1 Systems, methods, apparatus, and computer-readable media for generating obfuscated speech signal
03/20/2014WO2014041943A1 Capacitive sensor, acoustic sensor and microphone
03/20/2014WO2014041587A1 Speaker device and electronic equipment
03/20/2014US20140081644 Method and Device for Voice Operated Control
03/20/2014US20140079254 Mems microphone using noise filter
03/20/2014US20140079250 Information device for moving object
03/20/2014US20140079248 Systems and Methods for Source Signal Separation
03/20/2014US20140079245 Wind noise reducing circuit
03/20/2014US20140079232 Audio processing device, audio processing method, and recording medium recording audio processing program
03/19/2014CN203492193U Microelectronic loudspeaker
03/19/2014CN203492188U Computer built-in active sound equipment
03/19/2014CN203492187U Hardware audio mixer for computer audio integrated circuit
03/19/2014CN203492186U A voice output system
03/19/2014CN203492185U Audio output circuit of alarm intercom
03/19/2014CN203492180U Multifunctional sound box
03/19/2014CN203491984U Automatic gain processing system
03/19/2014CN103650533A Generating a masking signal on an electronic device
1 ... 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ... 182