H04R 3 - Circuits for transducers

Patents for H04R 3 - Circuits for transducers (18,190)
03/2013
03/20/2013	CN202818579U Network conference interface microphone
03/20/2013	CN202818578U Special active loudspeaker having noise reduction function for reception
03/20/2013	CN202818577U 公共交通降噪系统 Public transport noise reduction system
03/20/2013	CN202818576U Control device capable of controlling acousto-optic synchronization
03/20/2013	CN202818575U Microphone noise reduction adapter
03/20/2013	CN202818574U Portable device for controlling the sound volume and audio output
03/20/2013	CN202818573U Earphone audio hybrid circuit and audio equipment
03/20/2013	CN202818572U Card-inserted sound box with intercom function
03/20/2013	CN202818571U Active infrared anti-myopia headset
03/20/2013	CN202818556U 降噪耳机 Noise Cancelling Headphones
03/20/2013	CN202818239U Noise suppression circuit and audio frequency amplifier with noise suppression function
03/20/2013	CN202816388U Karaoke recording and playing audio equipment
03/20/2013	CN202813196U Decorative lighting capable of lighting with sound effects
03/20/2013	CN102986249A Vibration device and electronic device
03/20/2013	CN102986247A Acoustic system
03/20/2013	CN102984634A Digital hearing-aid unequal-width sub-band automatic gain control method
03/20/2013	CN102984630A System and method used for reducing distortion in voice frequency amplification system
03/20/2013	CN102984629A Method used for reducing noise in voice frequency amplification system
03/20/2013	CN102984628A Volume adjusting circuit of radio
03/20/2013	CN102984627A Control circuit of bluetooth headset
03/20/2013	CN102984626A Method and device for detecting and correcting audio system input digital signals
03/20/2013	CN102984625A Car audio system and control method thereof
03/20/2013	CN102984624A Automobile horn controller
03/20/2013	CN102984620A Sound equipment
03/20/2013	CN102984612A Novel acoustical reproduction structural headset
03/20/2013	CN102980554A Position monitoring system
03/20/2013	CN101677421B Loudspeaker and mobile communication terminal with the loudspeaker
03/20/2013	CN101453532B Sound processing equipment used in loudspeaker switch
03/20/2013	CN101379870B Voice conference device
03/20/2013	CN101378602B Display acoustics circuit
03/20/2013	CN101116372B Array speaker device
03/19/2013	US8401682 Interactive sound reproducing
03/19/2013	US8401208 Anti-shock methods for processing capacitive sensor signals
03/19/2013	US8401207 Motional feedback system
03/19/2013	US8401206 Adaptive beamformer using a log domain optimization criterion
03/19/2013	CA2669482C An entertainment system for a vehicle
03/18/2013	DE202010017907U1 Filteranordnung Filter assembly
03/14/2013	WO2013036039A2 Method and apparatus for processing audio signal
03/14/2013	WO2013035643A1 Receiving circuit, semiconductor device, and sensor device
03/14/2013	WO2013035340A1 Electronic apparatus
03/14/2013	WO2013033991A1 Method, device, and system for noise reduction in multi-microphone array
03/14/2013	WO2013033946A1 Method and system for noise reduction, smart control method and device, and communication device
03/14/2013	WO2013006323A3 Equalization of speaker arrays
03/14/2013	US20130064399 Programmable Microphone Bias Generation
03/14/2013	US20130064391 Acoustic Beam Forming Array Using Feedback-Controlled Microphones for Tuning and Self-Matching of Frequency Response
03/14/2013	US20130064374 Signal processing apparatus and method for providing 3d sound effect
03/14/2013	DE102011113431A1 Mikrofonverstärker Microphone Amplifier
03/14/2013	DE102009060094B4 Verfahren und Hörgerät zur Rückkopplungserkennung und -unterdrückung mit einem Richtmikrofon Method and hearing aid feedback detection and suppression with a directional microphone
03/13/2013	EP2568720A1 Vibration device and electronic device
03/13/2013	EP2568702A1 Method and device for audio signal mixing processing
03/13/2013	CN202799115U Loudspeaker device
03/13/2013	CN202799098U Power amplifier electrification silencing device and system
03/13/2013	CN202799097U Audio input circuit for GPS voice control system
03/13/2013	CN202799096U Audio input circuit for GPS navigation system
03/13/2013	CN202799095U Audio circuit for GPS voice control system
03/13/2013	CN202799094U Automatic volume adjusting device for video player
03/13/2013	CN202799093U Portable digital speaker with clock memory and stop travel time functions
03/13/2013	CN202799092U Wireless module special for bluetooth sound box
03/13/2013	CN202799091U Signal processing circuit of very high frequency aeronautical communication land radio station terminal module
03/13/2013	CN202799090U Very high frequency aeronautical communication land radio station terminal module
03/13/2013	CN202799089U Effector signal processing circuit
03/13/2013	CN202799088U Effector signal processing circuit
03/13/2013	CN202799087U Startup and shutdown device of electronic product and bluetooth earphone
03/13/2013	CN202799086U Electronic horn driven by constant power
03/13/2013	CN202799085U Buffer of acoustic-electric conversion unit
03/13/2013	CN202799084U Energy-saving high-fidelity circuit
03/13/2013	CN202799083U Volume-adjustable general earphone
03/13/2013	CN202799082U Audio processing device and sound equipment
03/13/2013	CN202799081U Audio equipment with functions of radio
03/13/2013	CN202799080U Audio equipment with recording function
03/13/2013	CN202799079U Bluetooth earphone with multiplexing of USB (Universal Serial Bus) interface
03/13/2013	CN202799078U Musical rhythm electroacoustic low-frequency power amplification signal transforming circuit
03/13/2013	CN202799077U Speaker system and digital circuit used in speaker system
03/13/2013	CN202799074U Wireless audio with lighting function
03/13/2013	CN202798855U Microphone circuit module with reverberation and monitoring functions
03/13/2013	CN202798588U Operational amplifier emphasis circuit
03/13/2013	CN202795787U Electromagnetic radiation free antenatal training device with volume and voice frequency control function
03/13/2013	CN102972046A Oscillation device and electronic component
03/13/2013	CN102972043A Ear microphone
03/13/2013	CN102970639A Sound receiving system
03/13/2013	CN102970638A Signal processing
03/13/2013	CN102970637A Interactive system of electroacoustic product and audio and video playing device
03/13/2013	CN102970636A 声音再现装置 Sound reproduction apparatus
03/13/2013	CN102970635A Sound reproduction device
03/13/2013	CN102970634A Sound volume control apparatus
03/13/2013	CN102970633A Device control apparatus, device control method, and program
03/13/2013	CN102970632A Sound based volume adjustment device, product and method
03/13/2013	CN102970628A 耳机装置 Earphone device
03/13/2013	CN102970626A Frequency-modulated wireless microphone with single battery
03/13/2013	CN102970399A Mobile terminal with microphone function
03/13/2013	CN102969001A Noise reduction for dual-microphone communication devices
03/13/2013	CN101771913B Device for controlling bass sound reproduction of audio frequency signal and method
03/13/2013	CN101533090B Method and device for positioning sound of array microphone
03/13/2013	CN101383595B Electronic volume ajuster and audio device using thereof and abnormity detection method
03/12/2013	CA2484588C Method and system of representing a sound field
03/09/2013	CA2787715A1 System and apparatus for modular on-demand audio processing, amplification and distribution
03/09/2013	CA2787713A1 System and apparatus for modular on-demand audio processing, amplification and distribution
03/07/2013	WO2013033142A2 High voltage multiplier for a microphone and method of manufacture
03/07/2013	WO2013032822A2 Audio adjustment system
03/07/2013	WO2013032332A1 Device and method for measuring sound levels and direction or localisation of sound sources

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