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)
05/2014
05/14/2014CN103796088A 一种带收音机及时钟功能便携式太阳能音箱 A tape radio and clock function Portable Solar Speaker
05/14/2014CN103796086A 一种带指南针及时钟功能便携式音箱 A compass and clock functions with portable speakers
05/14/2014CN102395084B 耳麦电路 Headsets circuit
05/14/2014CN101790122B 音频系统的爆破音消除电路及移动通信终端 Plosive audio system and mobile communication terminal elimination circuit
05/14/2014CN101715158B 音频信号装置及方法 Apparatus and method for audio signal
05/13/2014US8724822 Noisy environment communication enhancement system
05/12/2014CA2832848A1 Signal processing system and signal processing method
05/08/2014WO2014069661A1 Sound reproduction system and sound reproduction method
05/08/2014WO2014069368A1 Receiver device
05/08/2014WO2014069112A1 Signal processing device and signal processing method
05/08/2014WO2014069111A1 Signal processing device, signal processing method, measurement method, and measurement device
05/08/2014WO2014068835A1 Drive support apparatus, and drive support system
05/08/2014WO2012177802A3 Signal-enhancing beamforming in an augmented reality environment
05/08/2014US20140126751 Multi-Resolution Audio Signals
05/08/2014US20140126750 Operation device
05/08/2014US20140126748 Method and Device for Voice Operated Control
05/08/2014US20140126747 Power amplifying circuit and system
05/08/2014US20140126746 Signal-separation system using a directional microphone array and method for providing same
05/08/2014US20140126745 Combined suppression of noise, echo, and out-of-location signals
05/08/2014US20140126744 Acoustic voice activity detection (avad) for electronic systems
05/08/2014US20140126743 Acoustic voice activity detection (avad) for electronic systems
05/08/2014US20140126742 Multi-room audio distribution system having a plurality of audio cable adapters and methods of use
05/08/2014US20140126729 Adaptive system for managing a plurality of microphones and speakers
05/08/2014US20140126726 Enhanced stereophonic audio recordings in handheld devices
05/08/2014DE112012003495T5 Akustisches Empfänger-Tiefpassfilter Acoustic receiver low-pass filter
05/07/2014CN203590428U 一种中仓防回音手持喊话器 A medium warehouse anti-echo handheld megaphone
05/07/2014CN203590427U 蓝牙音响系统 Bluetooth Sound System
05/07/2014CN203590426U 车载通信指挥系统音频接口模块 Car audio interface module communication and command systems
05/07/2014CN203590425U 交警用的可移动哨声发声器 Police whistle with movable sounder
05/07/2014CN203590424U 一种抑制pop音的耳机输出电路 A method of inhibiting pop headphone output circuit
05/07/2014CN203590423U 积分器电路、d类放大器电路以及音频装置 Integrator circuit, d class amplifier circuit and an audio device
05/07/2014CN203590422U 人工智能全自动修复电动车控制器及其语音喇叭装置 Artificial intelligence Auto repair electric vehicle controller and voice speaker device
05/07/2014CN203588464U 交通指挥棒 Traffic baton
05/07/2014CN1805614B 移动声讯设备用双磁式听筒免提两用扬声器 Mobile voice device with dual magnetic dual earpiece handsfree speaker
05/07/2014CN103782515A 声音处理设备、方法以及程序 Sound processing device, method, and program
05/07/2014CN103780998A 消除声学回波的方法和设备、与自适应滤波系数更新方法 Method and apparatus eliminates acoustic echo, and adaptive filter coefficients method updates
05/07/2014CN103780997A 音频电源管理系统 Audio Power Management System
05/07/2014CN103780996A 一种消除开关电源对音响am 噪声的电路 A switching power supply circuit eliminates noise sound am
05/07/2014CN103780995A 音频信号输出装置 The audio signal output device
05/07/2014CN103780994A 组合音箱装置 Speaker system device
05/07/2014CN103777543A 一种声音传输装置 A voice transmission device
05/07/2014CN103768698A 一种催眠器音效处理电路 One kind of hypnosis audio processing circuit
05/07/2014CN102611974B Mems麦克风电路 Mems microphone circuit
05/07/2014CN102395077B 一种抗干扰耳机 One kind of interference headset
05/07/2014CN102325287B 一种具有主讲和全部哑音功能的智能自动混音装置 Intelligent automatic mixing device having a speaker and mute functions all
05/07/2014CN102273223B 动态音量控制和多空间处理保护 Dynamic volume control and multi-spatial processing protection
05/07/2014CN101563938B 处理音频数据的设备和方法 An audio data processing apparatus and method of
05/06/2014US8718299 Audio control device and audio output device
05/06/2014US8718297 Parametric transducer and related methods
05/06/2014US8718294 Audio connectors with wavelength-division-multiplexing capabilities
05/06/2014US8718293 Signal separation system and method for automatically selecting threshold to separate sound sources
05/06/2014US8715514 Micro-electromechanical systems (MEMS) microphone and method of manufacturing the same
05/01/2014WO2014066246A1 Distance-based automatic gain control and proximity-effect compensation
05/01/2014WO2014064689A1 A system and methods thereof for capturing a predetermined sound beam
05/01/2014WO2014064325A1 Media remixing system
05/01/2014WO2014063755A1 Portable electronic device with audio rendering means and audio rendering method
05/01/2014US20140122092 Personal audio assistant device and method
05/01/2014US20140119570 Equalization of Speaker Arrays
05/01/2014US20140119568 Adaptive Microphone Beamforming
05/01/2014US20140119562 Method of frequency assignment of a wireless radio transmission system and a wireless radio audio transmission system
05/01/2014US20140119561 Methods and systems to provide automatic configuration of wireless speakers
05/01/2014US20140119560 Jam Jack
05/01/2014US20140119559 Personal audio assistant device and method
05/01/2014US20140119558 Personal audio assistant device and method
05/01/2014US20140119554 Methods and systems for non-volatile memory in wireless headsets
05/01/2014US20140119550 Transmit Audio in a Target Space
05/01/2014US20140119546 Apparatus and method for keeping output loudness and quality of sound among different equalizer modes
04/2014
04/30/2014EP2725819A1 Method and implementation apparatus for intelligently controlling volume of electronic device
04/30/2014DE102013112007A1 System und Verfahren für einen kapazitiven Signalquellenverstärker System and method for a capacitive signal source amplifier
04/30/2014CN203574848U Dynamic noise-reducing system for automobile
04/30/2014CN203574847U Portable multifunctional sound system
04/30/2014CN203574846U Multifunctional bracket with sound amplifying function
04/30/2014CN203574845U Volume controller for speech recognition
04/30/2014CN203574844U Civilization traffic intelligent propaganda sound equipment
04/30/2014CN203574843U Energy-saving digital microphone system
04/30/2014CN203574842U Voice output device
04/30/2014CN203574841U Driving communication mate
04/30/2014CN203574840U Vehicle-mounted magic card audio system
04/30/2014CN203574839U Circuit for improving radio-frequency sensitivity of bluetooth earphone
04/30/2014CN203574838U Sound box with double wireless modes
04/30/2014CN203574819U Earphone circuit and earphone
04/30/2014CN103763663A Microphone and electronic equipment
04/30/2014CN103763662A Novel Bluetooth headset
04/30/2014CN103763661A Intelligent secret key device and audio signal transmission system
04/30/2014CN103763660A Method for connecting pins of audio interface, control circuit and audio system
04/30/2014CN103763659A Generating device and method of driving signals of loudspeaker
04/30/2014CN103763651A Noise shielding earphone
04/30/2014CN102625213B Audio system squeaking processing method and audio system
04/30/2014CN101841588B Audio interface device and electronic device using same
04/30/2014CN101662712B Microphone circuit
04/29/2014DE202014101659U1 Signalempfangsvorrichtung eines Funkmikrofons Signal receiving apparatus of a radio microphone
04/24/2014WO2014063104A2 Keyword voice activation in vehicles
04/24/2014WO2014062729A1 Direct field acoustic testing in a semi-reverberant enclosure
04/24/2014WO2014062152A1 Noise-reducing directional microphone array
04/24/2014WO2014061584A1 Electroacoustic transducer, manufacturing method thereof, and electronic device utilizing same
04/24/2014WO2014061578A1 Electronic device and acoustic reproduction method
04/24/2014WO2014060496A1 Method and arrangement for controlling an electro-acoustical transducer
04/24/2014WO2014060204A1 System and method for reducing latency in transposer-based virtual bass systems
04/24/2014WO2014059890A1 Method and device for balancing frequency response of sound playback system through online iteration
04/24/2014WO2013154823A3 System for adjusting loudness of audio signals in real time
1 ... 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 ... 182