| Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486) |
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| 10/06/2004 | CN2647004Y Improved structure of single magnetic circuit and double output tone loudspeaker |
| 10/06/2004 | CN2647003Y Equipment for improving loudspeaker tone quality |
| 10/06/2004 | CN1535072A Voice coil for loudspeaker and loudspeaker device |
| 10/05/2004 | US6801635 Speaker device |
| 10/05/2004 | US6801634 Loudspeaker coil suspension system |
| 09/30/2004 | US20040190748 Manufacturing method of speaker and speaker produced thereby |
| 09/30/2004 | US20040190747 Magnetic shielding of loud speaker sensing coil |
| 09/30/2004 | US20040188175 Audio speaker with wobble free voice coil movement |
| 09/30/2004 | US20040188174 Audio speaker with wobble free voice coil movement |
| 09/30/2004 | DE202004011767U1 Loudspeaker includes magnet assembly with central projection and fastening carrying front disc, annular magnet and ferrous yoke |
| 09/30/2004 | DE102004008902A1 Schwingungsvorrichtung und Herstellungsverfahren dafür Vibration device and manufacturing method thereof |
| 09/29/2004 | EP1463377A2 Method of manufacturing a speaker by means of ultrasonic vibration welding, and speaker produced thereby |
| 09/29/2004 | EP1463374A1 Rectangular transducer for panel-form loudspeaker |
| 09/29/2004 | EP1175669B1 Systems and methods for passive pressure-compensation for acoustic transducers |
| 09/29/2004 | CN2645391Y Cone loudspeaker with three basins |
| 09/23/2004 | US20040184622 Speaker apparatus |
| 09/23/2004 | US20040182642 Acoustic lens system |
| 09/22/2004 | EP1460881A2 Magnetic system of an acoustic transducer |
| 09/22/2004 | EP1460880A2 Loudspeaker array |
| 09/22/2004 | EP1459811A1 Multi-functional vibrating actuator |
| 09/22/2004 | EP1459292A1 Method and device arrangement to improve quality of sound in an audio system |
| 09/22/2004 | CN2643590Y Vibrating plate structure for load-speaker |
| 09/22/2004 | CN1531370A Magnetic system of electro-acoustical converter |
| 09/21/2004 | US6795564 Energy converter with two coils and two magnetic gaps |
| 09/21/2004 | US6795563 Speaker for an electronic instrument |
| 09/16/2004 | WO2004080121A1 Loudspeaker column |
| 09/16/2004 | WO2004080120A1 Loudspeaker |
| 09/16/2004 | WO2004080119A1 Loudspeaker |
| 09/16/2004 | US20040179711 Speaker having a weight ring |
| 09/15/2004 | CN2641968Y Horne with improved structure |
| 09/15/2004 | CN2641967Y Super-thin panel type loudspeakers |
| 09/15/2004 | CN1167309C Loudspeaker |
| 09/15/2004 | CN1167308C Speaker |
| 09/14/2004 | US6792125 Pivotable speaker mounting apparatus |
| 09/14/2004 | US6789643 Butterfly damper |
| 09/14/2004 | US6789642 Display enclosure having thin speaker |
| 09/10/2004 | WO2004077879A1 Multifunctional actuator and mobile terminal |
| 09/09/2004 | US20040175016 Compound loudspeaker having a magnet system |
| 09/09/2004 | US20040175015 Methods and apparatus for dissipating heat in a voice coil |
| 09/09/2004 | DE102004007945A1 Elektroakustischer Umformer Electroacoustic Transducers |
| 09/08/2004 | EP1455553A2 Methods and apparatus for dissipating heat in a voice coil |
| 09/08/2004 | EP1036485B1 Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
| 09/08/2004 | CN2640176Y Three-line type line controlled microphone |
| 09/08/2004 | CN2640175Y Loudspeaker |
| 09/08/2004 | CN2640174Y Loudspeaker |
| 09/08/2004 | CN1527638A Electroacoustic sensor |
| 09/08/2004 | CN1527637A Loudspeaker vibrating diaphragm, producing method of the same vibrating diaphragm and dynamic loudspeaker |
| 09/08/2004 | CN1166251C Integrated speaker assembly of portable electronic device |
| 09/07/2004 | US6788799 Speaker device and associated method for manufacturing the speaker device |
| 09/07/2004 | US6788798 Method and arrangement for improving leak tolerance of an earpiece |
| 09/02/2004 | US20040170298 Case for containing electrical instrument |
| 09/02/2004 | US20040170297 Speaker apparatus |
| 09/02/2004 | US20040170296 High efficiency planar magnetic transducer with angled magnet structure |
| 09/02/2004 | US20040169425 Vibrator and method for manufacturing the same |
| 09/02/2004 | US20040168851 Wooden sheet;adhesion of paper or cloth; v-shaped; wetting with solution containing lubricant and water |
| 09/01/2004 | EP1453354A1 Electroacoustic transducer and process for producing the same |
| 09/01/2004 | EP1453353A1 Loudspeaker |
| 09/01/2004 | CN2638385Y Flash loudspeaker |
| 09/01/2004 | CN2638384Y Moving-coil loudspeaker |
| 09/01/2004 | CN2638383Y Single magnet coaxial loudspeaker |
| 09/01/2004 | CN2638382Y Loudspeaker |
| 09/01/2004 | CN1525791A Speaker apparatus |
| 09/01/2004 | CN1525790A Electroacoustic transducer |
| 09/01/2004 | CN1525788A Case for containing electrical instrument |
| 09/01/2004 | CN1525434A Vibrator and method for manufacturing the same |
| 09/01/2004 | CN1165201C Micro loudspeaker |
| 09/01/2004 | CN1165200C Loudspeaker |
| 09/01/2004 | CN1165199C Miniature loudspeaker |
| 08/26/2004 | US20040165746 Loudspeaker |
| 08/26/2004 | US20040165744 Speaker system having a processing circuitry |
| 08/26/2004 | US20040165738 Speaker assembly having plural drivers |
| 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 | EP0979592B1 Slotted diaphragm loudspeaker |
| 08/25/2004 | CN2636566Y Five element coaxial loudspeaker |
| 08/25/2004 | CN2636565Y Two element single magnetic body coaxial loudspeaker |
| 08/25/2004 | CN2636564Y Two element coaxial loudspeaker |
| 08/25/2004 | CN2636563Y Two magnetic body four element coaxial loudspeaker |
| 08/25/2004 | CN2636562Y New magnetic path body of receiver or loudspeaker |
| 08/25/2004 | CN2636561Y Bimagnetic path body of receiver or loudspeaker |
| 08/25/2004 | CN1164146C Structure of loudspeaker and its making method |
| 08/25/2004 | CN1164145C Method for fabricating loudspeaker suspension device |
| 08/25/2004 | CN1164144C Inertial vibrating type transducer |
| 08/24/2004 | US6782111 Multiple voicecoil and driver transducing |
| 08/19/2004 | US20040161130 Electroacoustic transducer, and electronic device using the same |
| 08/19/2004 | US20040161129 Low profile speaker and system |
| 08/19/2004 | US20040161125 Electroacoustic transducer |
| 08/19/2004 | US20040161124 Speaker device |
| 08/19/2004 | US20040159490 Compact loudspeaker and control switch assembly and method for installing and adjusting a loudspeaker in a partition |
| 08/19/2004 | DE10360272A1 Lautsprecher Speaker |
| 08/18/2004 | EP1448019A1 Yoke of speaker |
| 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 | CN1522096A Bugle structure with magnetic element fixed on drum membrane |
| 08/18/2004 | CN1522094A Electroacoustic transducer, and electronic device using the same |
| 08/18/2004 | CN1163106C Electro-magnetic converter used in acousticon, especially in electronic acousticon |
| 08/18/2004 | CN1163104C Speaker and magnetic loop used for the speaker |
| 08/17/2004 | US6778677 Repairable electromagnetic linear motor for loudspeakers and the like |
| 08/12/2004 | WO2004068900A1 Speaker unit and voice output device |