| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 02/05/2014 | CN203423793U Class-D power amplifier regulation circuit |
| 02/05/2014 | CN203423792U 音频电路和音频系统 The audio circuitry and audio systems |
| 02/05/2014 | CN203423791U Apparatus capable of realizing electric energy acquisition and communication by use of electronic device audio interface |
| 02/05/2014 | CN203423790U Adjustable automobile horn |
| 02/05/2014 | CN203423657U Device for improving fidelity of D-type power amplifier |
| 02/05/2014 | CN103563396A Reducing a disturbance on a signal path of a semiconductor switch |
| 02/05/2014 | CN103561370A Intelligent multifunctional earphone |
| 02/05/2014 | CN103561369A Usb接口电路和电子设备 Usb interface circuits and electronic equipment |
| 02/05/2014 | CN103561368A Sensory signal output apparatus |
| 02/05/2014 | CN103561367A Automatic muting of undesired noises by a microphone array |
| 02/05/2014 | CN103561184A Frequency-convertible echo cancellation method based on near-end audio signal calibration and correction |
| 02/05/2014 | CN102048529B Pulse oxyhemoglobin saturation measuring device with voice broadcasting function |
| 02/04/2014 | US8644533 Method and apparatus for hearing assistance device microphones |
| 02/04/2014 | US8644525 Virtual microphones in electronic conferencing systems |
| 01/30/2014 | WO2014017444A1 Temperature measurement device and protective device for audio signal converter |
| 01/30/2014 | WO2014017134A1 Information processing system and storage medium |
| 01/30/2014 | WO2014016468A1 Head-mounted sound capture device |
| 01/30/2014 | WO2014015721A1 Downlink transmission device for audio signal and electronic signature tool |
| 01/30/2014 | US20140032014 Wireless media source for communication with devices on data bus of vehicle |
| 01/30/2014 | US20140031962 Acoustic characteristics setting support system and acoustic characteristics setting apparatus |
| 01/30/2014 | US20140029771 Multiple input audio switch |
| 01/30/2014 | US20140029770 Hybrid analog/digital headset |
| 01/30/2014 | US20140029766 Event drivable n x m programmably interconnecting sound mixing device and method for use thereof |
| 01/30/2014 | US20140029762 Head-Mounted Sound Capture Device |
| 01/30/2014 | US20140029761 Method and Apparatus for Microphone Beamforming |
| 01/30/2014 | US20140029756 Hearing protection system |
| 01/29/2014 | EP2690887A1 Acoustic characteristics setting support system and acoustic characteristics setting appratus |
| 01/29/2014 | EP2690886A1 Method and apparatus for microphone beamforming |
| 01/29/2014 | EP2690623A1 Direct sound extraction device and reverberant sound extraction device |
| 01/29/2014 | EP2689593A2 Isolator device for passing through a signal |
| 01/29/2014 | CN203416399U Vehicular audio system capable of one-key switching from loudspeaker in vehicle to loudspeaker outside vehicle |
| 01/29/2014 | CN203416398U Active noise reduction earphone circuit |
| 01/29/2014 | CN203416397U Voice simulator with shadow control switch |
| 01/29/2014 | CN203416396U Intelligent terminal earphone association circuit |
| 01/29/2014 | CN203416395U Multipath audio input automatic detection and output priority control apparatus |
| 01/29/2014 | CN103548362A Audio processing device, audio processing method, and recording medium on which audio processing program is recorded |
| 01/29/2014 | CN103546843A Closed-loop power supply output stage |
| 01/29/2014 | CN103546842A Sound play control system |
| 01/29/2014 | CN103546841A Method and system for controlling digital sound volume based on WIFI (wireless fidelity) |
| 01/29/2014 | CN103546840A Core board of acoustic device |
| 01/29/2014 | CN103546839A Audio signal processing system and echo signal removing method thereof |
| 01/29/2014 | CN103546109A Remote multiparty conference volume adjusting system and method |
| 01/29/2014 | CN103544958A Method and device for controlling voice-frequency howling during switching of voice-frequency output |
| 01/29/2014 | CN102084667B Dereverberation apparatus, dereverberation method, dereverberation program, and recording medium |
| 01/29/2014 | CN101969592B 声音记录设备和方法 Sound recording apparatus and method |
| 01/29/2014 | CN101820563B Speaker protection system |
| 01/29/2014 | CN101491111B Electroacoustical transducing |
| 01/28/2014 | US8638955 Voice input device, method of producing the same, and information processing system |
| 01/28/2014 | US8638951 Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals |
| 01/28/2014 | US8638201 Wildlife dislodging device |
| 01/28/2014 | US8638170 Single supply headphone driver/charge pump combination |
| 01/28/2014 | CA2706558C System and method for receiving analog and digital input |
| 01/28/2014 | CA2529594C System for suppressing rain noise |
| 01/28/2014 | CA2499033C A system and method for beamforming using a microphone array |
| 01/23/2014 | WO2014014700A1 Touch input surface microphone |
| 01/23/2014 | WO2014013924A1 Noise identification device and noise identification method |
| 01/23/2014 | WO2014013909A1 Acoustic signal processing device, program and processing method for acoustic signals |
| 01/23/2014 | WO2014013843A1 Temperature measurement device and protection device for acoustic signal converter |
| 01/23/2014 | WO2014012234A1 Audio control system for electronic device and control method thereof |
| 01/23/2014 | US20140023210 Touch input surface microphone |
| 01/23/2014 | US20140023207 Passive Loudspeaker Multiplexer |
| 01/23/2014 | US20140023203 System and Method for Selectively Switching Between a Plurality of Audio Channels |
| 01/23/2014 | DE102013214309A1 Earphone or headset, has signal processing unit adding processed audio signal from outer microphone to audio signal from inner microphone, and performing band-pass limitation of audio signal of outer microphone |
| 01/22/2014 | EP2688313A1 Passive loudspeaker multiplexer |
| 01/22/2014 | CN203407011U 麦克风线路板 Microphone board |
| 01/22/2014 | CN203407010U Audio playing circuit and audio playing device |
| 01/22/2014 | CN203407009U Induction type sound box |
| 01/22/2014 | CN203407008U A vehicle-mounted multimedia system using a loudspeaker box and an earphone as output terminals |
| 01/22/2014 | CN203407007U A data interface converting system |
| 01/22/2014 | CN203407006U Audio transformer based on infrared transmission |
| 01/22/2014 | CN203407005U Power amplification circuit installed on computer main board |
| 01/22/2014 | CN203407001U Non-contact frequency-dependent loudspeaker |
| 01/22/2014 | CN203406981U Multifunctional fan illumination sound device |
| 01/22/2014 | CN103533489A Vehicle-mounted noise reduction module |
| 01/22/2014 | CN103533488A Helmholtz resonator and design method thereof |
| 01/22/2014 | CN103533487A Wired earphone circuit with function of suppressing 217Hz noise interference |
| 01/22/2014 | CN103533486A External volume regulator and regulating method |
| 01/22/2014 | CN103533485A 音频电路 Audio circuit |
| 01/22/2014 | CN103533484A Rapid noise elimination circuit |
| 01/22/2014 | CN103533483A Audio processing device and audio equipment |
| 01/22/2014 | CN102325289B Method and device of eliminating bias voltage difference existing in audio frequency digital-to-analogue conversion circuit |
| 01/21/2014 | US8634576 Output phase modulation entrainment containment for digital filters |
| 01/21/2014 | US8634572 Method and apparatus for ambient sound therapy user interface and control system |
| 01/21/2014 | US8634565 Audio signal processing apparatus, audio signal processing method, and program |
| 01/16/2014 | WO2014011183A1 An audio signal output device and method of processing an audio signal |
| 01/16/2014 | WO2014010290A1 Information processing system and recording medium |
| 01/16/2014 | WO2014010280A1 Audio signal processing device, audio signal processing method, program, and recording medium |
| 01/16/2014 | US20140016798 Mems device |
| 01/16/2014 | US20140016795 Personalized headphones and method of personalizing audio output |
| 01/16/2014 | US20140016794 Echo cancellation system and method with multiple microphones and multiple speakers |
| 01/16/2014 | DE102013213543A1 Fahrzeugnäherungsunterrichtungseinheit Vehicle proximity notification unit |
| 01/16/2014 | DE102008017054B4 Verfahren und Vorrichtung zur Verminderung von Verzerrungen bei der Tonwiedergabe eines Lautsprechers Method and apparatus for reducing distortion in the sound of a speaker |
| 01/16/2014 | DE102008013762B4 Datenwiedergabevorrichtung und Datenwiedergabeverfahren A data reproducing apparatus and data reproducing method |
| 01/15/2014 | EP2685746A1 Howling detection device, howling suppressing device and method of detecting howling |
| 01/15/2014 | CN203399276U Audio frequency power amplification device |
| 01/15/2014 | CN203399275U Circuit for regulating vehicle terminal volume in double-machine interactive mode |
| 01/15/2014 | CN203399274U Automatic volume-attenuating protector for overload phenomenon of tweeter |
| 01/15/2014 | CN203399273U Portable playing device with negative oxygen ion generator |
| 01/15/2014 | CN203399272U High-quality active integrated loudspeaker box with automatic denoising function |
| 01/15/2014 | CN203399259U Bluetooth earphone with acceleration sensor |