| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 03/18/2004 | US20040052396 Stretchable tube equipped microphone |
| 03/18/2004 | US20040052395 Microphone protection cover |
| 03/18/2004 | US20040052393 Clear sound side fill center fill |
| 03/18/2004 | US20040052389 Microphone/earpiece device for a mobile telephone, telephone, exchange or the like |
| 03/18/2004 | US20040052387 Piezoelectric film emitter configuration |
| 03/18/2004 | US20040052364 Headset communication unit |
| 03/18/2004 | US20040052363 Headset communication unit |
| 03/18/2004 | US20040052362 Headset communication unit |
| 03/18/2004 | US20040052072 Earpiece light |
| 03/18/2004 | US20040050617 Speaker enclosure and mounting method for isolating and insulating faceplate and heavy speakers from surrounding mounting surface |
| 03/18/2004 | DE19901866B4 Klangkörper mit einer Kugelschallquelle Sound body with a spherical sound source |
| 03/18/2004 | DE10025460B4 Hochtonlautsprecher Tweeter |
| 03/17/2004 | EP1398991A2 Acoustic Noise Reducing |
| 03/17/2004 | EP1398990A2 Flat panel sound radiator with fire protective back box |
| 03/17/2004 | EP1397937A2 Loudspeaker |
| 03/17/2004 | EP1397936A1 A method of providing a hydrophobic layer and a condenser microphone having such a layer |
| 03/17/2004 | EP1219138B1 Method and signal processor for intensification of speech signal components in a hearing aid |
| 03/17/2004 | CN1142671C High feedback inhibited transmitting/receiving integrated earphone |
| 03/16/2004 | US6707923 Foldable hook for headset |
| 03/16/2004 | US6707920 Implantable hearing aid microphone |
| 03/16/2004 | US6705426 Acoustic diffuser and method of production |
| 03/16/2004 | CA2204298C Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
| 03/16/2004 | CA2149998C Audio adapter for human ear |
| 03/11/2004 | WO2004021741A1 Elliptical flushmount speaker |
| 03/11/2004 | WO2004021739A1 Dynamic micro speaker with dual suspension |
| 03/11/2004 | WO2004021738A1 Microphone and communication interface system |
| 03/11/2004 | WO2004021697A1 United microphone with camera using free focus lens |
| 03/11/2004 | WO2004021031A1 Sound source search system |
| 03/11/2004 | WO2003067923A3 Transducer motor/generator assembly |
| 03/11/2004 | WO2003059007A3 Microphone support system |
| 03/11/2004 | WO2003026342A3 A headphone |
| 03/11/2004 | WO2002035802A3 Cellular phone that exposes the user's brain to much less microwave radiation than ordinary cellular phones with the help of a proxy (intermediary) device |
| 03/11/2004 | US20040047487 Flush mount speaker mounting apparatus |
| 03/11/2004 | US20040047486 Microphone with improved sound inlet port |
| 03/11/2004 | US20040047485 Folded horns for vibration actuators |
| 03/11/2004 | US20040047479 Speaker system |
| 03/11/2004 | US20040047478 Coaxial speaker with step-down ledge to eliminate sound wave distortions and time delay |
| 03/11/2004 | US20040045764 Flat panel sound radiator with fire protective back box |
| 03/11/2004 | DE10238325A1 Lautsprecher Speaker |
| 03/11/2004 | CA2497097A1 Elliptical flushmount speaker |
| 03/11/2004 | CA2438002A1 Flat panel sound radiator with fire protective back box |
| 03/10/2004 | EP1397023A2 Microphone with improved sound inlet port |
| 03/10/2004 | EP1396172A2 Wideband transducer |
| 03/10/2004 | EP1095537A4 Head worn entertainment and/or communication device |
| 03/10/2004 | CN1481195A 活塞式音箱 Piston Speaker |
| 03/10/2004 | CN1481187A Capacitor type mic structure |
| 03/10/2004 | CN1481186A Information processing terminal and method for operating content notice |
| 03/10/2004 | CN1141856C Telephone with receiver arousing bone-conduction and air-conduction hearing |
| 03/09/2004 | US6704430 Electroacoustic transducer |
| 03/09/2004 | US6704429 Earphone without impulse noise and surroundings blockade |
| 03/09/2004 | US6704427 Acoustic transducer with improved acoustic damper |
| 03/09/2004 | US6704426 Loudspeaker system |
| 03/09/2004 | US6704425 System and method to enhance reproduction of sub-bass frequencies |
| 03/09/2004 | US6704369 Apparatus and method for signal separation and recording medium for the same |
| 03/09/2004 | US6702747 Acoustically generated images having selected components |
| 03/04/2004 | WO2004019652A2 Loudspeaker |
| 03/04/2004 | WO2004019446A2 Audio radiator with radiator flexure minization and voice coil elastic anti-wobble members |
| 03/04/2004 | WO2004017880A1 Hearing aid |
| 03/04/2004 | US20040042630 Microphone enclosure for reducing acoustical interference |
| 03/04/2004 | US20040042629 Automatic earpiece sensing |
| 03/04/2004 | US20040042627 Elliptical flushmount speaker |
| 03/04/2004 | US20040041929 Headset for camera |
| 03/04/2004 | DE20317963U1 Headset for voice communication, has swan-neck microphone attached to loudspeaker part connected to ear via made-to-measure otoplastic material |
| 03/04/2004 | DE20316984U1 Loudspeaker enclosure attaching structure has pivot arm and connector unit with abutment surfaces which contact corresponding surfaces of loudspeaker |
| 03/04/2004 | DE10238804A1 Loudspeaker housing, especially for subsequent fitting in car space, consists of one or more ring segment-shaped parts, enclosing with their diameter planes an angle of 20 to 45 degrees |
| 03/04/2004 | DE10232953B3 Raum- und platzsparende Audioeinrichtung für ein elektronisches Gerät Space and space-saving audio device for an electronic device |
| 03/04/2004 | DE10203387B4 Ultraschall-Hindernisdetektor und Verfahren zu dessen Zusammenbau Ultrasonic obstacle detector and method for its assembly |
| 03/03/2004 | EP1395084A2 Electret assembly for a microphone having a backplate with improved charge stability and improved humidity stability |
| 03/03/2004 | EP1394905A1 CONNECTOR FOR ELECTRO−ACOUSTIC COMPONENT AND CONNECTION STRUCTURE THEREOF |
| 03/03/2004 | EP1393821A1 Ultrasonic transducer |
| 03/03/2004 | CN2605712Y Integrated voice box |
| 03/03/2004 | CN2605640Y Wireless remote control speech advertising voice box |
| 03/03/2004 | CN1479555A Three-line earphone interface circuit and its circuit method |
| 03/03/2004 | CN1479554A 扬声器装置 Speaker system |
| 03/03/2004 | CN1479525A Integrated design of omnidirectional camera and microphone array |
| 03/02/2004 | US6700988 Speaker spider with integral lead wire arrangement and manufacturing method thereof |
| 03/02/2004 | US6700986 Microphone characteristic adjustment device |
| 03/02/2004 | US6700985 Ear level noise rejection voice pickup method and apparatus |
| 03/02/2004 | US6700984 Non-linearly tapering transmission line speakers |
| 03/02/2004 | US6700958 Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth |
| 03/02/2004 | US6700692 Electrochromic rearview mirror assembly incorporating a display/signal light |
| 03/02/2004 | US6698028 Headphone earmuffs |
| 02/26/2004 | WO2004017672A1 Sound transducer comprising a small rear volume chamber |
| 02/26/2004 | WO2004017671A1 Compact and space-saving audio device |
| 02/26/2004 | WO2004017532A1 Subminiature bone vibrating speaker using the diaphragm and mobile phone thereby |
| 02/26/2004 | US20040037445 In-vehicle speaker rotational mounting structure |
| 02/26/2004 | US20040037444 Lightweight headset for high noise environments |
| 02/26/2004 | US20040037441 Speaker, speaker module, and electronic equipment using the speaker module |
| 02/26/2004 | US20040037437 Directional microphone |
| 02/26/2004 | US20040037435 Audiosystem for an automobile |
| 02/26/2004 | US20040037168 Delay network microphones with harmonic nesting |
| 02/26/2004 | US20040037166 Method and apparatus for forming a reception beam |
| 02/26/2004 | US20040035635 Baffle vibration reducing |
| 02/25/2004 | EP1392080A2 Loudspeaker unit and assembly |
| 02/25/2004 | EP1391139A1 Spa audio system operable with a remote control |
| 02/25/2004 | EP1391136A2 Matching an acoustic driver to an acoustic load in an acoustic resonant system |
| 02/25/2004 | CN2604841Y Headphone with microphone |
| 02/25/2004 | CN2604840Y Earphone capable of preventing in-circuit fatigue failure |
| 02/25/2004 | CN2604839Y Hair pin type earphone |
| 02/25/2004 | CN2604838Y Sound box volume electrooptical adjuster |