| Patents for H04R 3 - Circuits for transducers (18,190) | 
|---|
| 11/01/2007 | WO2007123048A1 Adaptive array control device, method, and program, and its applied adaptive array processing device, method, and program | 
| 11/01/2007 | WO2007123047A1 Adaptive array control device, method, and program, and its applied adaptive array processing device, method, and program | 
| 11/01/2007 | WO2007086000A3 Device and method for adapting an audio signal to a transducer unit | 
| 11/01/2007 | WO2007085975A3 Sound reproduction | 
| 11/01/2007 | WO2006055671A3 Crossover circuit for reducing impedance response variance of a speaker | 
| 11/01/2007 | US20070253579 Dual mode headset device | 
| 11/01/2007 | US20070253573 Hearing instrument with source separation and corresponding method | 
| 11/01/2007 | US20070253570 Microphone System | 
| 11/01/2007 | US20070253559 Processing audio input signals | 
| 10/31/2007 | EP1850630A2 Miniature speaker with integrated signal processing electronics | 
| 10/31/2007 | EP1850628A1 Bone-conduction speaker set, electronic device, electronic translation system, auditory sensation system, navigation device, and portable telephone | 
| 10/31/2007 | EP1224037B1 Method and apparatus to direct sound using an array of output transducers | 
| 10/31/2007 | DE102004053776B4 Verfahren zur Verstärkung eines Akustiksignals und entsprechendes Akustiksystem A method for amplifying an acoustic signal and corresponding acoustic system | 
| 10/31/2007 | DE102004040696B4 Notrufeinrichtung Emergency equipment | 
| 10/31/2007 | CN200969673Y Earphone silent circuit and television set having the same | 
| 10/31/2007 | CN200969668Y Multifunctional economic loudspeaker | 
| 10/31/2007 | CN200969667Y Portable amplifier | 
| 10/31/2007 | CN200969664Y Minisize waterproof vehicle mounted audio-frequency amplifier | 
| 10/31/2007 | CN200969214Y Electronic horn for motor vehicle | 
| 10/31/2007 | CN101064975A Vehicle communication system | 
| 10/31/2007 | CN100346669C Non-microphone voice transmission device | 
| 10/30/2007 | US7289638 Electroacoustic microphone | 
| 10/30/2007 | US7289637 Method for automatically adjusting the filter parameters of a digital equalizer and reproduction device for audio signals for implementing such a method | 
| 10/30/2007 | US7289633 System and method for integral transference of acoustical events | 
| 10/30/2007 | US7288934 Electronic device incorporating magnetoresistive elements for sensing both N and S magnetic poles | 
| 10/25/2007 | WO2007119362A1 Audio circuit | 
| 10/25/2007 | WO2007025265A3 Method and apparatus for improving noise discrimination using enhanced phase difference value | 
| 10/25/2007 | DE102005061018B4 Vorrichtung zur Anschlussprüfung von Lautsprechern eines Audiosystems Apparatus for testing connection of speakers of an audio system | 
| 10/24/2007 | EP1848243A1 Multi-channel echo compensation system and method | 
| 10/24/2007 | EP1428207B1 Active noise filtering for voice communication systems | 
| 10/24/2007 | CN200966148Y Three-independent circuit filter power supply for the audio system | 
| 10/24/2007 | CN200966147Y 语音功率放大器 Voice PA | 
| 10/24/2007 | CN200966146Y Music player for microwave oven | 
| 10/24/2007 | CN200966145Y Load tracing servo circuit | 
| 10/24/2007 | CN101061744A Audio signal enhancement | 
| 10/24/2007 | CN101061743A Method and apparatus for audio signal enhancement | 
| 10/24/2007 | CN101060724A A method for avoiding the hearing injury of audio equipment and electro-acoustic device made through this method | 
| 10/24/2007 | CN100345182C Active vibratory noise control apparatus | 
| 10/23/2007 | US7287154 Electronic boot up system and method | 
| 10/23/2007 | US7286675 Audio signal processors | 
| 10/23/2007 | US7286674 Method for designing a modal equalizer for a low frequency audible range especially for closely positioned modes | 
| 10/23/2007 | US7286073 Device for detecting operation of operator on sound control apparatus | 
| 10/23/2007 | CA2397009C Directional audio signal processing using an oversampled filterbank | 
| 10/18/2007 | WO2007116802A1 Output control device, output control method, output control program, and recording medium | 
| 10/18/2007 | WO2007116658A1 Speaker device | 
| 10/18/2007 | WO2007054888A3 Device for and method of generating a vibration source-driving-signal | 
| 10/18/2007 | US20070242843 Ultrasonic Transducer and Ultrasonic Speaker Using the Same | 
| 10/18/2007 | US20070242839 Remote wireless microphone system for a video camera | 
| 10/18/2007 | US20070242835 Tinnitus rehabilitation device and method | 
| 10/18/2007 | US20070242832 Acoustical Signal Processing Apparatus | 
| 10/17/2007 | EP1076928A4 User adjustable volume control that accommodates hearing | 
| 10/17/2007 | EP1057366A4 Microphone apparatus for producing signals for surround reproduction | 
| 10/17/2007 | EP1057365A4 Personal sound masking system | 
| 10/17/2007 | CN200962662Y Head-worn earphone | 
| 10/17/2007 | CN200962659Y 移动电话 Mobile telephone | 
| 10/17/2007 | CN101057523A Microphone system | 
| 10/17/2007 | CN101056477A Radio attached audio energy converter | 
| 10/17/2007 | CN100343837C Identification system and method for recognizing any one of a number of different types of devices | 
| 10/17/2007 | CN100342860C Actacid composition | 
| 10/11/2007 | WO2007113951A1 Av processor and program | 
| 10/11/2007 | WO2007113718A1 A device for and a method of processing data | 
| 10/11/2007 | WO2007113487A1 Ambient noise-reduction control system | 
| 10/11/2007 | US20070237345 Method for reducing phase variation of signals generated by electret condenser microphones | 
| 10/11/2007 | US20070237344 Microphone enhancement device | 
| 10/11/2007 | US20070237343 Sound Enhancement | 
| 10/11/2007 | US20070237340 Microphone for Surround-Recording | 
| 10/11/2007 | US20070237339 Environmental noise reduction and cancellation for a voice over internet packets (VOIP) communication device | 
| 10/11/2007 | US20070237338 Method and apparatus to improve voice quality of cellular calls by noise reduction using a microphone receiving noise and speech from two air pipes | 
| 10/11/2007 | US20070237334 System and method for enhancing audio output of a computing terminal | 
| 10/11/2007 | DE202007008142U1 Infrarot-Zweiweg-Übertragungsfeststellvorrichtung für ein kabelloses Mikrofon und einen Empfänger Infrared two-way transmission locking device for a wireless microphone and a receiver | 
| 10/11/2007 | DE102006016808A1 Luftschallwiedergabeanordnung Airborne sound reproducing device | 
| 10/10/2007 | EP1843626A2 Semiconductor electret capacitor microphone | 
| 10/10/2007 | EP0903055B1 Method and apparatus for localization of an acoustic source | 
| 10/10/2007 | CN101053152A Audio tuning system | 
| 10/10/2007 | CN101052242A Method for automatically equalizing a sound system | 
| 10/10/2007 | CN101052241A Crosstalk clearing system, method for keeping tone quality and its parameter design method | 
| 10/10/2007 | CN101052240A Control device and method for speaker output of portable computer | 
| 10/10/2007 | CN101052239A High frequency circuit and its method for eliminating earphone noise | 
| 10/10/2007 | CN101052236A Earphone for playing audio frequency file | 
| 10/10/2007 | CN101052111A Stereo playing system for mobile TV | 
| 10/10/2007 | CN101051985A Method for realizing virtual special net access | 
| 10/10/2007 | CN101051961A Loopback control method and device | 
| 10/10/2007 | CN101051931A System and method for realizing business protection using LCAS protocol | 
| 10/10/2007 | CN101051855A Remote control wireless earphone | 
| 10/10/2007 | CN101051084A Acoustic energy sending method by phase inversion | 
| 10/04/2007 | WO2007111405A1 Electroacoustic transducer having multi-channel diaphragm and hearing aid using the same | 
| 10/04/2007 | WO2007111134A1 Operation panel and information device | 
| 10/04/2007 | WO2007110851A2 Method of switching thousands of groups in musical software samplers | 
| 10/04/2007 | WO2007110693A1 Sony ericsson mobile communications ab | 
| 10/04/2007 | WO2007110252A1 Method for determining the position of a moving part in an electroacoustic transducer | 
| 10/04/2007 | WO2007109840A1 Improved multi-band loudspeaker system | 
| 10/04/2007 | WO2007109830A1 Volume control device and distributed audio system | 
| 10/04/2007 | US20070230734 Monitor Transducer System and Manufacturing Method Thereof | 
| 10/04/2007 | US20070230718 Apparatus with Speaker | 
| 10/04/2007 | US20070230717 Condenser microphone circuit | 
| 10/04/2007 | US20070230713 Tinnitus rehabilitation device and method | 
| 10/04/2007 | US20070229169 Single supply direct drive amplifier | 
| 10/04/2007 | DE112005002045T5 Schaltung zur Schwingungs- und Echounterdrückung und Mikrofon-Lautsprecher-Einheit Circuit for vibration reduction and echo cancellation and microphone-speaker unit | 
| 10/03/2007 | CN200956662Y Signal level adjustment apparatus | 
| 10/03/2007 | CN101048015A Condenser microphone circuit |