| Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486) |
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| 02/04/2003 | US6516071 Structure of a picture-frame type loudspeaker |
| 02/04/2003 | US6513623 Speaker |
| 01/30/2003 | WO2003009641A1 Speaker and method of manufacturing the speaker |
| 01/30/2003 | WO2003009638A1 Microphone |
| 01/30/2003 | US20030021435 Electroacoustic transducer |
| 01/30/2003 | US20030021427 Sound control unit and sound system |
| 01/29/2003 | EP1280378A2 Electroacoustic transducer frame and method of making the same |
| 01/29/2003 | EP1279317A1 Membrane with embossed surface |
| 01/29/2003 | CN2533637Y High-power broadband type loudspeaker capable of direct matching power amplifier |
| 01/29/2003 | CN2533636Y Earphone with rubber ring |
| 01/29/2003 | CN1394457A Transducer |
| 01/22/2003 | EP1278397A2 Loudspeaker drive unit with flat surround |
| 01/22/2003 | EP1127475B1 An electroacoustic communications unit |
| 01/22/2003 | CN2532651Y Loudspeaker |
| 01/22/2003 | CN1392716A Handfree earphone device for plug-in use of multiple communication machines |
| 01/22/2003 | CN1099658C Vibration generating apparatus |
| 01/21/2003 | US6510232 Electroacoustic transducer having diaphragm with coil mounting projections and interposed stabilizing walls |
| 01/15/2003 | EP1275268A1 Bone-conduction transducer and bone-conduction speaker headset therewith |
| 01/15/2003 | CN2531595Y Angle-adjustable loudspeaker device |
| 01/15/2003 | CN1391779A Vibration actuator having elastic member between suspension plate and magnetic circuit device |
| 01/09/2003 | WO2003001885A2 Multimedia and entertainment system for an automobile |
| 01/08/2003 | EP1274275A1 Speaker |
| 01/08/2003 | EP1273204A2 Acoustic transducer for broad-band loudspeakers or headphones |
| 01/08/2003 | CN2530416Y Frame-shape speaker |
| 01/08/2003 | CN1390431A Flat panel speaker |
| 01/08/2003 | CN1390078A Linked bass sound resonator |
| 01/03/2003 | WO2002025992A3 Loudspeaker driver |
| 01/02/2003 | US20030003945 Speaker and mobile terminal device |
| 01/02/2003 | US20030002696 Electroacoustic transducer with field replaceable diaphragm carrying two interlaced coils, without manipulating any wires |
| 01/02/2003 | EP1271999A2 Speaker for a mobile device |
| 01/02/2003 | EP1269793A1 Single end planar magnetic speaker |
| 01/01/2003 | CN2529480Y S-shaped device connected with frame and vibration membrane of loud-speaker |
| 01/01/2003 | CN1389083A 扬声器 Speaker |
| 01/01/2003 | CN1389082A Speaker and magnetic circuit used for the speaker |
| 01/01/2003 | CN1388731A Audio signal-to-electrical signal converter |
| 01/01/2003 | CN1388730A Double-coil for double-sound cone loudspeaker |
| 01/01/2003 | CN1388729A Loudspeaker with two symmetrical magnetic paths, two coils and two centering support fins |
| 01/01/2003 | CN1388728A Epoxy resin cloth coil and its making process |
| 12/31/2002 | US6501844 Loudspeaker and method of assembling same |
| 12/26/2002 | US20020196961 Panel-shaped loudspeaker |
| 12/25/2002 | CN2528178Y Connector for microphone |
| 12/25/2002 | CN2528168Y Multifunctional mobile telephone earphone |
| 12/25/2002 | CN1387388A Laminated composite plate type flat loudspeaker and its making method |
| 12/25/2002 | CN1387352A Loudspeaker |
| 12/25/2002 | CN1387351A Loudspeaker |
| 12/19/2002 | WO2002102113A1 Speaker |
| 12/19/2002 | WO2002100561A1 Vibrating actuator device |
| 12/19/2002 | US20020191808 Single-ended planar-magnetic speaker |
| 12/18/2002 | EP1266540A1 Electromagnetic vibrator |
| 12/18/2002 | CN2527047Y Radio set rack |
| 12/17/2002 | US6496590 Loudspeaker with improved diaphragm |
| 12/17/2002 | US6494289 Device for dynamic excitation of panel loudspeakers |
| 12/12/2002 | WO2002065810A3 Electroacoustic transducer being acoustical tight in the area of its air gap for its moving coil |
| 12/12/2002 | WO2002063922A3 Improved single-ended planar-magnetic speaker |
| 12/12/2002 | US20020188362 Digital recording microphone |
| 12/11/2002 | CN1384693A 扬声器及移动终端设备 Speakers and mobile devices |
| 12/11/2002 | CN1384653A Loudspeaker |
| 12/10/2002 | US6493452 Speaker unit |
| 12/05/2002 | WO2002059879A9 Planar-magnetic speakers with secondary magnetic structure |
| 12/05/2002 | WO2002003748A3 Electroacoustic transducer with replaceable diaphragm |
| 12/05/2002 | US20020181731 Speaker damper |
| 12/05/2002 | DE10120281C1 Lautsprecher Speaker |
| 12/04/2002 | EP1262088A2 Compound driver for acoustical applications |
| 12/04/2002 | CN2524467Y Connecting structure of diaphram and inner spring of moving coil receiver |
| 12/04/2002 | CN2524466Y Wide spectrum response moving coil receiver |
| 12/04/2002 | CN2524465Y Large dynamic piston disphram loudspeaker |
| 12/04/2002 | CN1383346A Loudspeaker system |
| 12/03/2002 | US6490363 Structure of speaker |
| 12/03/2002 | US6488465 Technique for nesting articles |
| 11/28/2002 | US20020176597 Flat panel speaker |
| 11/28/2002 | US20020176596 Speaker |
| 11/28/2002 | US20020175021 Speaker |
| 11/27/2002 | CN2523163Y Electromagnetic wave-proof mobile phone hand-free receiver apparatus |
| 11/27/2002 | CN2523162Y Voice coil |
| 11/26/2002 | US6487300 Vibration speaker |
| 11/26/2002 | US6484844 Speaker |
| 11/21/2002 | WO2002093975A1 Elecro-mechanical transducer |
| 11/21/2002 | WO2002092244A1 Leaf spring and vibration generating device using the leaf spring |
| 11/21/2002 | US20020172392 Speaker |
| 11/21/2002 | US20020170772 One-piece speaker assembly |
| 11/20/2002 | CN2521861Y Bugle loudspeaker |
| 11/20/2002 | CN2521860Y Loudspeaker with built-in flash lamp |
| 11/20/2002 | CN1094714C Louderspeaker |
| 11/19/2002 | US6483917 Telephone with a receiver arousing bone-conduction and air-conduction hearing |
| 11/19/2002 | US6483778 Systems and methods for passively compensating transducers |
| 11/14/2002 | WO2002091561A1 Mobile terminal with electromagnetic actuator |
| 11/14/2002 | US20020168077 Microphone characteristic adjustment device |
| 11/14/2002 | US20020168074 Loudspeaker |
| 11/13/2002 | EP1257148A2 Loudspeaker for a portable communication device |
| 11/13/2002 | EP1257147A2 Speaker and mobile terminal device |
| 11/13/2002 | CN2520620Y Noiseproof voice pick-up |
| 11/12/2002 | US6480614 Planar acoustic transducer |
| 11/07/2002 | WO2002089522A2 Loudspeaker |
| 11/07/2002 | WO2002059879A3 Planar-magnetic speakers with secondary magnetic structure |
| 11/07/2002 | US20020164044 Display enclosure having thin speaker |
| 11/07/2002 | US20020164040 Built-in micro-speaker for wireless communication device |
| 11/06/2002 | EP1255419A2 Display enclosure having thin speaker |
| 11/06/2002 | EP0685983B1 Magnetic circuit unit for loud-speaker and method of manufacturing the same |
| 11/06/2002 | CN2520070Y Sequence shaped loudspeaker |
| 11/06/2002 | CN1378406A Loundspeaker |