| Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555) |
|---|
| 10/27/2004 | EP1470734A2 Low profile audio speaker |
| 10/27/2004 | CN1173555C Electroacoustic converter |
| 10/26/2004 | US6810126 Planar magnetic transducer |
| 10/21/2004 | WO2004080118B1 Bending wave loudspeaker |
| 10/20/2004 | EP1469700A2 A coil for an electroacoustic transducer |
| 10/20/2004 | EP1469490A1 An audio signal processing circuit and a display device incorporating the same |
| 10/20/2004 | EP1050190B1 Active acoustic devices comprising panel members |
| 10/20/2004 | CN1539252A Sound reproducing system using sound pressure |
| 10/14/2004 | WO2004089037A1 Speaker |
| 10/14/2004 | US20040202347 Flat speaker of full-face driving |
| 10/14/2004 | US20040202342 Compound loudspeaker drive unit having a magnet system |
| 10/14/2004 | US20040201056 Audio signal processing circuit and a display device incorporating the same |
| 10/14/2004 | US20040200801 Manufacture having double sided features in a metal-containing web and manufacture and method for forming same in a liquid-based etch process |
| 10/13/2004 | EP1466500A1 Silicon microphone |
| 10/12/2004 | US6804370 Speaker capable to playback in wide frequency range |
| 10/12/2004 | US6804367 Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein |
| 10/12/2004 | US6804366 Speaker apparatus |
| 10/07/2004 | WO2004086811A1 Loudspeaker body |
| 10/07/2004 | US20040197006 Voice coil of speaker |
| 10/07/2004 | US20040197004 Speaker apparatus |
| 10/06/2004 | EP1366635B1 Panel form loudspeaker |
| 10/06/2004 | CN1535556A Loadspeakers |
| 10/06/2004 | CN1170457C Electrosonic energy transducer |
| 10/05/2004 | US6801634 Loudspeaker coil suspension system |
| 10/05/2004 | US6799361 Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 09/30/2004 | US20040189151 Mechanical-to-acoustical transformer and multi-media flat film speaker |
| 09/29/2004 | EP1175669B1 Systems and methods for passive pressure-compensation for acoustic transducers |
| 09/28/2004 | CA2173466C Loudspeaker |
| 09/23/2004 | WO2004082331A1 Built-in device for a mobile terminal |
| 09/23/2004 | WO2004082327A1 Bone conduction device |
| 09/23/2004 | US20040182642 Acoustic lens system |
| 09/22/2004 | CN1531369A Vibrating diaphragm edgefold of loudspeaker |
| 09/21/2004 | US6795561 Panel drive |
| 09/16/2004 | WO2004080121A1 Loudspeaker column |
| 09/16/2004 | WO2004080118A1 Bending wave loudspeaker |
| 09/15/2004 | EP1458215A2 Surroundless piston-driven vibrating speaker |
| 09/15/2004 | CN2641967Y Super-thin panel type loudspeakers |
| 09/15/2004 | CN2641966Y Loudspeakers |
| 09/15/2004 | CN1529840A Electronic article comprising loudspeaker & touch pad |
| 09/15/2004 | CN1167309C Loudspeaker |
| 09/15/2004 | CN1167192C Method for mfg. surface acoustic wave device |
| 09/14/2004 | US6792127 Elliptical dome for high frequency transducer |
| 09/14/2004 | US6791519 Sound and vision system |
| 09/09/2004 | US20040175016 Compound loudspeaker having a magnet system |
| 09/09/2004 | DE102004007945A1 Elektroakustischer Umformer Electroacoustic Transducers |
| 09/08/2004 | EP1036485B1 Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
| 09/08/2004 | CN1528104A Electroacoustic conversion of audio signals, especially voice signals |
| 09/08/2004 | CN1527638A Electroacoustic sensor |
| 09/08/2004 | CN1527637A Loudspeaker vibrating diaphragm, producing method of the same vibrating diaphragm and dynamic loudspeaker |
| 09/02/2004 | US20040170297 Speaker apparatus |
| 09/02/2004 | US20040168852 Apparatus for energy transfer in a balanced receiver assembly and manufacturing method thereof |
| 09/02/2004 | US20040168851 Wooden sheet;adhesion of paper or cloth; v-shaped; wetting with solution containing lubricant and water |
| 09/01/2004 | EP1453352A1 Edge for speaker diaphragm and method for manufacturing the same |
| 09/01/2004 | EP0880502B1 Aminoheterocyclic derivatives as antithrombotic or anticoagulant agents |
| 09/01/2004 | CN1526259A Acoustic device |
| 09/01/2004 | CN1526258A Acoustic device |
| 09/01/2004 | CN1525791A Speaker apparatus |
| 09/01/2004 | CN1525787A Electroacoustic transducer |
| 09/01/2004 | CN1165203C Anti-noise-electret pick-up |
| 09/01/2004 | CN1165200C Loudspeaker |
| 08/31/2004 | US6785393 Audio transducers |
| 08/26/2004 | WO2004073350A1 Device for fitting a space-designing means with a loudspeaker function |
| 08/26/2004 | US20040167377 Apparatus for creating acoustic energy in a balanced receiver assembly and manufacturing method thereof |
| 08/26/2004 | US20040165746 Loudspeaker |
| 08/26/2004 | US20040163883 Electroacoustic transducer |
| 08/26/2004 | DE10311083B3 Loudspeaker integrated with housing for mobile telephone has piezoelectric actuator at one end of lid on housing exciting bending waves in lid |
| 08/26/2004 | DE10303244B3 Loudspeaker for sound reproduction system, has conical membrane of three-layer construction held in frame at edge and coil wound round cylinder extending from central aperture |
| 08/25/2004 | EP1450580A2 Speaker diaphragms, manufacturing methods of the same, and dynamic speakers |
| 08/25/2004 | EP1450578A2 Electroacoustic transducer |
| 08/25/2004 | EP0979592B1 Slotted diaphragm loudspeaker |
| 08/25/2004 | CN1164145C Method for fabricating loudspeaker suspension device |
| 08/25/2004 | CN1164144C Inertial vibrating type transducer |
| 08/24/2004 | US6782114 Loudspeaker |
| 08/24/2004 | US6779627 Flat panel sound radiator with fire protective back box |
| 08/19/2004 | WO2003043747A8 Manufacture having double sided features in a metal-containing web formed by etching |
| 08/19/2004 | US20040161130 Electroacoustic transducer, and electronic device using the same |
| 08/19/2004 | US20040161125 Electroacoustic transducer |
| 08/19/2004 | US20040161124 Speaker device |
| 08/18/2004 | EP1448018A2 Speaker device with dampers |
| 08/18/2004 | EP1448017A2 Electroacoustic transducer, and electronic device using the same |
| 08/18/2004 | EP1446237A2 Manufacture having double sided features in a metal-containing web formed by etching |
| 08/18/2004 | CN1522094A Electroacoustic transducer, and electronic device using the same |
| 08/12/2004 | WO2004068900A1 Speaker unit and voice output device |
| 08/12/2004 | WO2004068898A1 Loudspeaker |
| 08/12/2004 | US20040156515 Acoustic device |
| 08/12/2004 | DE10303247A1 Loudspeaker membrane e.g. for conical loudspeaker, has non-uniform material and thickness of membrane to influence frequency characteristic of loudspeaker |
| 08/11/2004 | EP1445981A1 DIAPHRAGM STRUCTURE OF LIGHT−SOUND CONVERTER |
| 08/11/2004 | EP1445980A1 Speaker |
| 08/11/2004 | EP1273204B1 Acoustic transducer for broad-band loudspeakers or headphones |
| 08/11/2004 | CN1162042C Loudspeaker |
| 08/05/2004 | WO2004066672A1 Apparatus and method for producing sound |
| 08/05/2004 | DE20319824U1 Loudspeaker has at least one membrane of tubular cross-section of circular or elliptical shape attached to drive at longitudinal edges |
| 08/05/2004 | DE10303030A1 Treiber Driver |
| 08/05/2004 | CA2553744A1 Apparatus and method for producing sound |
| 07/29/2004 | US20040146176 Paper-honeycomb-paper sandwich multi-layer loudspeaker cone structure |
| 07/29/2004 | DE10258183B3 Slider-Mobiltelefon mit Biegewellenlautsprecher Slider mobile phone with bending wave loudspeaker |
| 07/29/2004 | DE10150424B4 Reflexionssystem und Verwendung des Reflexionssystems Reflection system and using the reflection system |
| 07/28/2004 | CN1516522A Loudspeaker |
| 07/28/2004 | CN1516521A Loudspeaker diaphragm and its mfg. method |
| 07/28/2004 | CN1159949C Planar acoustic transducer |