| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 04/14/2004 | CN1145924C Acoustic horn transducer with conic type diffuser having exponential profile in wood |
| 04/14/2004 | CN1145863C External connection adaptor and electronic device |
| 04/13/2004 | US6721433 Acoustic apparatus wearable on the head |
| 04/13/2004 | US6721432 Microphone and video camera |
| 04/13/2004 | US6721431 Prismatic loudspeaker/microphone array |
| 04/13/2004 | US6720708 Mechanical-to-acoustical transformer and multi-media flat film speaker |
| 04/13/2004 | US6720691 Vibrating device for transmitting information |
| 04/13/2004 | US6719581 Plug for speaker cables, and speaker terminal and speaker terminal system provided with them |
| 04/13/2004 | US6719255 Suspending device |
| 04/13/2004 | US6719092 Lightweight loudspeaker enclosure |
| 04/13/2004 | US6719091 Coaxial speaker system |
| 04/13/2004 | US6719090 Speaker assembly |
| 04/08/2004 | WO2004030408A1 Loud speaker |
| 04/08/2004 | WO2004030407A2 Drive mechanism |
| 04/08/2004 | WO2004030402A1 Double-resonator micro-speaker assemblies and methods for tuning the same |
| 04/08/2004 | WO2004030401A1 The helmet-type speaker apparatus and the speaker system for chair using of it |
| 04/08/2004 | WO2004019652A3 Loudspeaker |
| 04/08/2004 | WO2004019446A3 Audio radiator with radiator flexure minization and voice coil elastic anti-wobble members |
| 04/08/2004 | WO2004012477A3 Wireless interactive headset |
| 04/08/2004 | WO2004004408A8 Speaker arrangement for communication terminal |
| 04/08/2004 | WO2003107716A8 A communications headset |
| 04/08/2004 | WO2003069594A3 Surface acoustic antenna for submarines |
| 04/08/2004 | US20040066948 Earring for a headset |
| 04/08/2004 | US20040066947 Transducer with multiple phase plugs |
| 04/08/2004 | US20040066941 Directional setting apparatus, directional setting system, directional setting method and directional setting program |
| 04/08/2004 | US20040066938 Loudspeaker |
| 04/08/2004 | US20040066937 Multispeaker sound imaging system |
| 04/08/2004 | US20040065500 Acoustic reproduction device with improved directional characteristics |
| 04/08/2004 | US20040064885 Method and apparatus for covering a speaker on a bed |
| 04/08/2004 | DE202004001166U1 Vorrichtung zum Schutz der Membran von Lautsprechern Device for protecting the membrane of loudspeaker |
| 04/07/2004 | EP1405545A2 Sound transmitter and speaker |
| 04/07/2004 | EP0750469B1 Low profile intravascular ultrasound imaging transducer |
| 04/07/2004 | EP0749656B1 Portable communication device |
| 04/07/2004 | CN2610594Y Loudspeaker box |
| 04/07/2004 | CN2610575Y 红外线耳机 Infrared headphones |
| 04/07/2004 | CN1488231A Enclosure and audio-visual apparatus comprising same |
| 04/07/2004 | CN1487771A Acousto-electric inventer |
| 04/07/2004 | CN1487425A Electronic equipment for radio transmitting content data and content repro ducing method for reproducing content data utilizing external equipment |
| 04/07/2004 | CN1145407C Acoustic matching parts and producing method thereof, and ultrasonic transmitter and receiver with the same acoustic matching parts |
| 04/07/2004 | CN1145406C Adjustable earphone |
| 04/07/2004 | CN1145339C Surface installation for mobile phone loudspeaker unit |
| 04/07/2004 | CN1145335C System and method for broadcasting music accompanied light or vibration |
| 04/06/2004 | US6718043 Voice sound transmitting apparatus and system including expansion port |
| 04/06/2004 | US6718040 Transformer, loudspeaker device, loudspeaker network, and loudspeaker system |
| 04/01/2004 | WO2004028198A1 Headphone |
| 04/01/2004 | WO2004027457A2 Seafloor seismic recording using mems |
| 04/01/2004 | WO2002023965A8 A cloth for covering an opening in a housing of an electronic equipment |
| 04/01/2004 | US20040063459 Electronic apparatus for wirelessly transmitting content data, and content reproducing method of reproducing content data using external device |
| 04/01/2004 | US20040062413 Wireless ear-piece interchangeable microphone/antenna tubes |
| 04/01/2004 | US20040062412 Adjustable ear canal retention transceiver/receiver |
| 04/01/2004 | US20040062411 Recreational bone conduction audio device,system |
| 04/01/2004 | US20040062407 Loudspeaker with a front-mounted sealing element and method of manufacturing the same |
| 04/01/2004 | US20040062404 Speaker system |
| 04/01/2004 | US20040060153 Combination handle and cabinet fastener |
| 04/01/2004 | DE10117528B4 Ultraschallbasiertes parametrisches Mehrwege-Lautsprechersystem Ultrasound-based parametric multi-way speaker system |
| 04/01/2004 | DE10039775B4 Lautsprechervorrichtung und Gerät Speaker apparatus and equipment |
| 04/01/2004 | CA2499910A1 Permanent seafloor seismic recording system utilizing micro electro-mechanical systems seismic sensors and method of deploying same |
| 03/31/2004 | EP1404146A1 Bone conduction headset |
| 03/31/2004 | EP1403647A2 Apparatus for fixed operation |
| 03/31/2004 | EP1402755A2 Method and apparatus to create a sound field |
| 03/31/2004 | EP1150633B1 Device for attenuating sound on the human ear |
| 03/31/2004 | CN1144502C Ported loudspeaker system with reduced air turbulence and preparing method thereof |
| 03/31/2004 | CN1144498C Resonant panel-form loudspeaker |
| 03/31/2004 | CN1144444C Portable electronic device with speaker assembly |
| 03/30/2004 | US6714653 Sound capturing method and device |
| 03/30/2004 | US6712177 Cross-fired multiple horn loudspeaker system |
| 03/25/2004 | WO2004025989A1 Calibrating a first and a second microphone |
| 03/25/2004 | WO2004025988A1 Microphone system for accordions |
| 03/25/2004 | WO2004025804A1 Charging device and charging method |
| 03/25/2004 | WO2004023914A1 Communication apparatus and helmet |
| 03/25/2004 | WO2002063920A3 Connecting device for audio-video systems |
| 03/25/2004 | US20040059226 Method and apparatus for cooling a contacting surface of an ultrasound probe |
| 03/25/2004 | US20040055812 Enclosure and audio-visual apparatus comprising same |
| 03/25/2004 | US20040055811 Earphone device |
| 03/25/2004 | DE10105676B4 Elektronisches Gerät mit einer Lautsprechereinrichtung Electronic device with a speaker setup |
| 03/24/2004 | EP1401239A2 Heat Transfer in Audio Device |
| 03/24/2004 | EP1401237A2 Asymmetrical loudspeaker enclosures with enhanced low frequency response |
| 03/24/2004 | EP1401236A1 Transducer mounting element and method |
| 03/24/2004 | EP1401053A1 Microphone holder having connector unit molded together with conductive strips |
| 03/24/2004 | EP1400814A2 Directional setting apparatus, directional setting system, directional setting method and directional setting program |
| 03/24/2004 | EP1234479B1 Loudspeaker device |
| 03/24/2004 | EP0904672A4 Anti-eavesdropping device |
| 03/24/2004 | CN2607707Y Horn structure |
| 03/24/2004 | CN1484909A Earring for a headset |
| 03/24/2004 | CN1143594C Miniature electro-acoustic converter |
| 03/24/2004 | CN1143593C Acoustic device relying on bending wave action |
| 03/24/2004 | CN1143498C Telephone having sealed acoustical passageway through flip cover hinge |
| 03/23/2004 | US6711545 Hand-held transmitter having speech storage actuated by transmission failure |
| 03/23/2004 | US6711274 Compound speaker for a portable communication device |
| 03/23/2004 | US6711272 Adjustable microphone stand |
| 03/23/2004 | US6711269 Multifunction acoustic device |
| 03/23/2004 | US6709398 Ultrasonic probe |
| 03/23/2004 | US6708797 Display enclosure having thin speaker |
| 03/23/2004 | CA2323799C Cushioned earphones |
| 03/23/2004 | CA2257444C Method and apparatus for localization of an acoustic source |
| 03/18/2004 | WO2004023843A1 Vibration actuator device of portable terminal |
| 03/18/2004 | WO2004023842A1 Yoke of speaker |
| 03/18/2004 | WO2004023839A2 Headset for camera |
| 03/18/2004 | WO2003098966A3 Bi-aural listenig device |
| 03/18/2004 | US20040052397 Audio device heat transferring |