| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 02/03/2004 | US6687380 Active sub-woofer speaker system |
| 02/03/2004 | US6686833 Compound acoustic actuator drive circuit and portable information terminal |
| 02/03/2004 | US6686036 Material for casing for acoustic equipment and casing for acoustic equipment fabricated therefrom |
| 02/03/2004 | US6685150 Conductive speaker mounting system |
| 02/03/2004 | US6684976 Headset ear seal |
| 01/29/2004 | WO2003100876A3 Low acceleration sensitivity mounting structures for crystal resonators |
| 01/29/2004 | US20040019899 Method of and system for signal detection |
| 01/29/2004 | US20040018770 Plug for speaker cables, and speaker terminal and speaker terminal system provided with them |
| 01/29/2004 | US20040017924 Speaker installation and method |
| 01/29/2004 | US20040017921 Electrical impedance based audio compensation in audio devices and methods therefor |
| 01/29/2004 | US20040017920 Speaker device |
| 01/29/2004 | US20040017919 Receiver unit |
| 01/29/2004 | DE10231491A1 Vorrichtung zur Umwandlung von Schallwellen in elektrische Signale A device for converting sound waves into electrical signals |
| 01/29/2004 | DE10212083B3 Elektrodynamischer Schallwandler An electrodynamic transducer |
| 01/29/2004 | DE10153638B4 Ultraschallsensor zur Entfernungsmessung Ultrasound sensor for measuring distance |
| 01/28/2004 | EP1385355A1 In-the-ear hearing device |
| 01/28/2004 | EP1385353A2 Plug for speaker cables, speaker terminal and speaker terminal arrangement comprising the same |
| 01/28/2004 | EP1385234A1 Mechanical-contact adapter |
| 01/28/2004 | EP1384373A2 Earring for a headset |
| 01/28/2004 | EP1384372A2 Electronic unit comprising a loudspeaker device |
| 01/28/2004 | EP1384224A2 Display signs |
| 01/28/2004 | EP1383431A2 A device and method for inserting acoustical dampers into earphones |
| 01/28/2004 | EP1050188B1 Auxiliary bass radiator units |
| 01/28/2004 | CN1471797A Earpiece |
| 01/28/2004 | CN1471337A Communication apparatus with receiver headphone and method thereof |
| 01/28/2004 | CN1471195A Horn connection line plug and horn terminal and corresponding horn connector system |
| 01/28/2004 | CN1136757C Speaker apparatus and television set |
| 01/28/2004 | CN1136756C Earphone hub supporting device and portable terminal unit |
| 01/27/2004 | US6684094 Instrument for medical purposes |
| 01/27/2004 | US6683965 In-the-ear noise reduction headphones |
| 01/27/2004 | US6683964 Direction finder |
| 01/27/2004 | US6683963 Interchangeable pivoting loudspeaker assembly with spring retained high frequency transducer |
| 01/27/2004 | US6682043 Shock-absorbing device for a microphone stand |
| 01/24/2004 | CA2432374A1 In-the-ear hearing device |
| 01/22/2004 | WO2004008802A1 Hearing aid or similar audio device and method for producing a hearing aid |
| 01/22/2004 | WO2004007097A1 Acoustic-signal emitting device for vehicles |
| 01/22/2004 | WO2003093950A3 Localized audio networks and associated digital accessories |
| 01/22/2004 | US20040015983 Method and apparatus for a data receiver and controller for the facilitation of an enhanced television viewing environment |
| 01/22/2004 | US20040013279 Portable telephone attachment for person hard of hearing |
| 01/22/2004 | US20040011588 Hands-free attachment |
| 01/22/2004 | CA2488603A1 Acoustic-signal emitting device for vehicles |
| 01/21/2004 | CN1470148A Bending wave loudspeaker |
| 01/21/2004 | CN1469683A Hand-free earphone for mobile phone and external blue-tooth module |
| 01/21/2004 | CN1468756A Rotary mounting structure of loudspeaker in vehicle |
| 01/20/2004 | US6681025 Electromechanical and electroacoustic transducer |
| 01/20/2004 | US6681024 Device including a built-in electroacoustic transducer for optimum speech reproduction |
| 01/20/2004 | US6681023 Radial pickup microphone enclosure |
| 01/20/2004 | US6681022 Two-way communication earpiece |
| 01/15/2004 | WO2004006621A1 Single and multiple reflection wave guide |
| 01/15/2004 | WO2004006620A1 Electroacoustic transducer |
| 01/15/2004 | US20040009716 Electrical connectors for electro-dynamic loudspeakers |
| 01/15/2004 | US20040008863 Frequency response enhancements for electro-dynamic loudspeakers |
| 01/15/2004 | US20040008862 Conductors for electro-dynamic loudspeakers |
| 01/15/2004 | US20040008860 Speaker spider with integral lead wire arrangement and manufacturing method thereof |
| 01/15/2004 | US20040008858 Acoustically enhanced electro-dynamic loudspeakers |
| 01/15/2004 | US20040008857 Dipole radiating dynamic speaker |
| 01/15/2004 | US20040008856 Waved/corrugated and stepped surface design for speaker box, and method of standardization of speaker box assemblies for television of different screen sizes |
| 01/15/2004 | US20040008855 Ear clasp headset |
| 01/15/2004 | US20040008101 Speaker assembly |
| 01/15/2004 | DE20316318U1 Anordnung zur Darbietung von Bild und Ton Arrangement for the performance of image and sound |
| 01/15/2004 | DE10227478A1 Musik-Vibrationskissen Music Shaker |
| 01/15/2004 | DE10227450A1 Head-Set für eine Funktionseinrichtung, insbesondere ein Mikrofon Head set for a functional device, particularly a microphone |
| 01/14/2004 | EP1380187A1 Directional controller and a method of controlling a hearing aid |
| 01/14/2004 | EP1380186A2 Vehicle accessory microphone |
| 01/14/2004 | EP1183921B1 High-frequency current supressor capable of being readily attached to cable or the like and earphone system using the same |
| 01/14/2004 | CN2599885Y Double-sided receiver |
| 01/14/2004 | CN2599884Y Casing for radio or earphone |
| 01/14/2004 | CN2599883Y Composite microphone having composable and decomposable prism body |
| 01/14/2004 | CN2599622Y External loudspeaker box for palm computer |
| 01/14/2004 | CN2599544Y Sound pick-up in electromechancial equipment |
| 01/14/2004 | CN1468501A Headphone accessory |
| 01/14/2004 | CN1468469A Earphones and microphone (personal speaking device) that do not transmit or emit microwave radiation or any other dangerous radiation |
| 01/14/2004 | CN1468028A Speaker for vehicle |
| 01/14/2004 | CN1467974A Piezoelectric electroacoustic convertor |
| 01/14/2004 | CN1467112A Mounting structure of speaker for vehicle |
| 01/14/2004 | CN1135058C Acoustic device according to bending wave principle and driving method thereof |
| 01/13/2004 | US6678384 Speaker structure |
| 01/13/2004 | US6678381 Ultra-directional speaker |
| 01/13/2004 | US6677034 Aerogels, piezoelectric devices, and uses therefor |
| 01/13/2004 | US6676879 Method of making vehicle interior trim panel with integral loudspeaker |
| 01/13/2004 | US6675932 Speaker housing configured to minimize standing waves and resonate above the frequency range of transducers |
| 01/13/2004 | US6675931 Low profile audio speaker |
| 01/13/2004 | US6675930 Speaker holder |
| 01/08/2004 | WO2004004411A1 Piezoelectric biological sound monitor with printed circuit board |
| 01/08/2004 | WO2004004410A1 Loudspeaker edge |
| 01/08/2004 | WO2004004408A1 Speaker arrangement for communication terminal |
| 01/08/2004 | WO2004004297A2 Stationary spectral power dependent audio enhancement system |
| 01/08/2004 | WO2004004178A1 Wireless audio signal transmission method for a three-dimensional sound system |
| 01/08/2004 | WO2004002383A1 Noise cancellation system and headphone therefor |
| 01/08/2004 | WO2003086149A3 Modular speaker construction |
| 01/08/2004 | WO2003030583A3 Waveguide loudspeaker with adjustable controlled dispersion |
| 01/08/2004 | WO2003009219A3 Electronic article comprising loudspeaker & touch pad |
| 01/08/2004 | WO2002078388A3 Method and apparatus to create a sound field |
| 01/08/2004 | US20040005073 Ceiling loudspeaker |
| 01/08/2004 | US20040005072 Bulb type speaker structure |
| 01/08/2004 | US20040005069 Dual range horn with acoustic crossover |
| 01/08/2004 | US20040003962 Planar acoustic waveguide |
| 01/08/2004 | US20040003961 Low frequency horn |
| 01/08/2004 | US20040003959 Device and method for installing vehicle door speaker |
| 01/08/2004 | US20040003664 Sensor and method for manufacturing the same |