| Patents for H04R 1 - Details of transducers (42,173) |
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| 04/17/2001 | US6219425 Loudspeaker with heat radiating hole and electrical device employing the same |
| 04/17/2001 | US6217349 Holder and method for manufacturing the same |
| 04/12/2001 | WO2001026418A1 Method and signal processor for intensification of speech signal components in a hearing aid |
| 04/12/2001 | WO2001026417A1 Loudspeaker |
| 04/12/2001 | WO2001026415A1 Method and apparatus for picking up sound |
| 04/12/2001 | WO2001026414A1 Speaker unit |
| 04/12/2001 | WO2001026272A2 Internet based hearing assessment methods |
| 04/12/2001 | DE10036450A1 Telescopic microphone has barrel for insertion into housing with barrel fixing device, and when switch is on, speech signals are acquired by acquisition unit, and transferred to loudspeaker arrangement |
| 04/12/2001 | CA2386584A1 Method and apparatus for picking up sound |
| 04/12/2001 | CA2353595A1 Speaker unit |
| 04/11/2001 | EP1091615A1 Method and apparatus for picking up sound |
| 04/11/2001 | EP1091539A2 A portable electronic device |
| 04/11/2001 | EP1091277A1 Speaker enclosure for a handheld electronic device |
| 04/11/2001 | EP1091168A1 Lighting and audio diffuser unit |
| 04/11/2001 | CN2426662Y Hanging fastening earphone line box |
| 04/11/2001 | CN1291064A Water-proof device with sound energy convertor capable of immersing |
| 04/10/2001 | US6215885 Audio speaker |
| 04/10/2001 | US6215883 Loudspeaker with movable virtual point source |
| 04/10/2001 | US6215882 Panel-form loudspeaker |
| 04/10/2001 | US6215881 Ceiling tile loudspeaker |
| 04/10/2001 | US6215871 Sanitary cover for telephone and method of making same |
| 04/10/2001 | CA2162567C Stereophonic reproduction method and apparatus |
| 04/05/2001 | WO2001024579A2 Insert earphone assembly for audiometric testing and method for making same |
| 04/05/2001 | WO2001024576A1 Producing and storing hearing profiles and customized audio data based |
| 04/05/2001 | WO2001024575A2 Noise suppression system with dual microphone echo cancellation |
| 04/05/2001 | WO2001024574A1 Loudspeaker system |
| 04/05/2001 | WO2001024573A1 Microphone and video camera |
| 04/05/2001 | WO2001024483A2 Device for combining environment and telecommunication signals |
| 04/05/2001 | WO2001023104A2 Method and apparatus to direct sound using an array of output transducers |
| 04/05/2001 | DE19938172A1 Lautsprecherbox Speaker |
| 04/05/2001 | CA2384251A1 Producing and storing hearing profiles and customized audio data based |
| 04/04/2001 | EP1089592A2 Microphone protecting device |
| 04/04/2001 | EP1089591A1 Loudspeaker mounting apparatus |
| 04/04/2001 | CN1290115A Loudspeaker system and cooling device |
| 04/03/2001 | US6212409 Multifunction earphone-microphone device |
| 04/03/2001 | US6212284 Sound reproduction device |
| 04/03/2001 | US6210336 Damping cushion for ultrasound probes |
| 04/03/2001 | US6210212 Computer headphone extension cord device |
| 03/29/2001 | WO2001022787A1 Loudspeaker with progressively damped acoustical chamber |
| 03/29/2001 | WO2001022770A2 Longitudinally divided loudspeaker port with increased aerodynamic efficiency |
| 03/29/2001 | CA2385603A1 Longitudinally divided loudspeaker port with increased aerodynamic efficiency |
| 03/28/2001 | EP0827677A4 Compact full-range loudspeaker system |
| 03/28/2001 | CN1289523A Acoustic device comprising a panel member relying on bending wave action |
| 03/28/2001 | CN1289522A Speaker device |
| 03/28/2001 | CN1289162A Handfree device |
| 03/27/2001 | US6207114 Inserting a member into soil where a column is to be located, to create a void; filling with a zero-valent metal, sand, gravel, or a mixture and decreasing soil density in an area including the void to define the column; permeability |
| 03/22/2001 | WO2001020948A2 Mems digital-to-acoustic transducer with error cancellation |
| 03/22/2001 | WO2001003467A3 Bending wave acoustic device |
| 03/22/2001 | WO2000064228A8 Compression molded cellulose (cmc) loudspeaker cabinets and method for making same |
| 03/21/2001 | EP1085781A2 Apparatus for adapting the directional characteristic of microphones for voice control |
| 03/21/2001 | EP1084592A1 Resonant panel-form loudspeaker |
| 03/21/2001 | EP1084590A1 Folded sagnac sensor array |
| 03/21/2001 | EP1084588A1 Acoustic damping material |
| 03/21/2001 | CN2424593Y Throat viberating hold-free mobile telephone mic |
| 03/21/2001 | CN1288537A Joystick with a microphone |
| 03/21/2001 | CN1288223A Device adaptive for direction characteristic used for speech voice control |
| 03/20/2001 | US6205224 Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
| 03/20/2001 | US6204974 Compact image display system for eyeglasses or other head-borne frames |
| 03/15/2001 | WO2001018786A1 Sound system and method for creating a sound event based on a modeled sound field |
| 03/15/2001 | WO2001018132A2 Panel-shaped loudspeaker |
| 03/15/2001 | WO2000079832A3 Electric/acoustic transducer module, intra-aural hearing-aid and method for producing an intra-aural hearing aid |
| 03/15/2001 | WO2000045895A8 Mouthpiece and speaker assemblies for underwater speech |
| 03/15/2001 | DE19943872A1 Vorrichtung zur Anpassung der Richtcharakteristik von Mikrofonen für die Sprachsteuerung Device for adjusting the directivity of microphones for voice control |
| 03/14/2001 | EP1082871A1 Molded in speaker grid |
| 03/14/2001 | EP1070309A4 Method and apparatus for conveying audiovisual information |
| 03/14/2001 | EP0749264A4 Loudspeaker |
| 03/14/2001 | CN2423693Y 可伸缩式麦克风装置 Retractable microphone system |
| 03/14/2001 | CN2423692Y Vibration type microphone acoustic device |
| 03/14/2001 | CN1287764A Audio device and headphone |
| 03/13/2001 | US6201878 Portable compact disc player |
| 03/13/2001 | US6201877 Adjustable holder for an acoustic pick-up device |
| 03/13/2001 | US6201876 Device for protecting a microphone from external disturbances |
| 03/13/2001 | US6201868 Portable telephone handset construction |
| 03/08/2001 | DE19943718A1 Bass driver has stacked LF electroacoustic transducers in common housing with slit-shaped sound exit opening at front |
| 03/08/2001 | DE10029388A1 Appliance and method for signal separation and suitable recording medium employs adaptive filter |
| 03/07/2001 | EP1081985A2 Microphone array processing system for noisly multipath environments |
| 03/07/2001 | EP1080605A1 Panel-form loudspeaker |
| 03/07/2001 | EP1080604A1 Speaker apparatus and television set |
| 03/07/2001 | EP1080603A1 Apparatus having an electroacoustic transducer mounted on a p.c. board with the aid of a holding means |
| 03/07/2001 | CN1286887A Buffering cover for preventing pains in using earphones |
| 03/06/2001 | US6198831 Panel-form loudspeakers |
| 03/06/2001 | US6198829 Process and device for focusing acoustic waves |
| 03/06/2001 | US6198821 Earphone-microphone adapter |
| 03/06/2001 | US6198206 Inertial/audio unit and construction |
| 03/01/2001 | WO2001015492A1 Audio speaker system for personal computer |
| 03/01/2001 | WO2001015490A1 Low frequency speaker system |
| 03/01/2001 | DE19938171A1 Acoustic signal processing method for passenger vehicle communications installation processes acoustic signals in dependence on respective seating position for providing respective acoustic zones |
| 02/28/2001 | EP1079662A2 Electro-acoustic micro-transducer having an improved dynamic and frequency range |
| 02/28/2001 | EP1078553A1 Sound reproduction device working according to the bending wave principle |
| 02/28/2001 | CN2421788Y Crystal indirect sound vibration type microphone |
| 02/28/2001 | CN1285705A Small electricity-sound converter with three-mode replaying property |
| 02/28/2001 | CN1062681C Display unit |
| 02/27/2001 | US6195442 Passive vibroacoustic attenuator for structural acoustic control |
| 02/27/2001 | US6195441 Headphone device |
| 02/22/2001 | WO2001013689A1 Mounting plate for loudspeakers |
| 02/22/2001 | WO2001013357A1 Ultrasound assembly for use with a catheter |
| 02/22/2001 | DE19939409A1 Sound transducer for mounting in a wall or ceiling, comprises flat membrane which is indirectly excited by gas volume in pressure chamber from loudspeaker |
| 02/21/2001 | EP1077583A2 Loudspeaker box |
| 02/21/2001 | EP1077012A1 Headset for aircraft |
| 02/20/2001 | US6192136 Inertial vibration transducers |