Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486)
08/2004
08/12/2004WO2004068899A1 Speaker, and module and electronic device using such speaker
08/12/2004WO2004068898A1 Loudspeaker
08/12/2004US20040156527 Push-pull electromagnetic transducer with increased Xmax
08/12/2004US20040156526 Closed-ended linear voice coil actuator with improved force characteristic
08/12/2004US20040156525 Transducer motor with low thermal modulation
08/12/2004US20040156524 Component member for electric, component member for electro-acoustic transducers, and method of manufacturing the same
08/12/2004US20040155741 Flat linear voice coil actuator with planar coils and a spring-type characteristic
08/11/2004EP1445980A1 Speaker
08/11/2004EP1273204B1 Acoustic transducer for broad-band loudspeakers or headphones
08/11/2004EP0985327A4 Flush mounted uni-directional microphone
08/11/2004CN2632973Y Fixer of loudspeaker
08/11/2004CN1520231A Speaker surtable to different output power
08/11/2004CN1162042C Loudspeaker
08/11/2004CN1162041C Photoelectric transudcer indluding enclosuring element for enclosuring rear volume of transducer
08/10/2004US6774510 Electromagnetic motor with flux stabilization ring, saturation tips, and radiator
08/10/2004US6772855 Damper for speaker and method of producing the same
08/05/2004WO2004066671A1 Plane series magnetic circuit and the electricity-machine-sound transducer using the magnetic circuit
08/05/2004WO2004065158A2 Condensed speaker system
08/05/2004US20040151339 Speaker
08/05/2004US20040151338 Thin type full-range speaker
08/05/2004DE10303030A1 Treiber Driver
08/04/2004CN2631171Y Blutooth hand-free receiver module structure
08/04/2004CN1518396A Ultra-high audio-frequoncy loudspeaker
08/04/2004CN1518395A Electroacoustical transducing by low frequency augmenting devices
08/04/2004CN1161000C Mechanical acoustic dividing network and transducer thereof
08/04/2004CN1160924C Handfree earphone device for plug-in use of multiple communication machines
08/04/2004CN1160870C Vibrating loudspeaker
08/03/2004US6771792 Track-shaped loudspeaker
08/03/2004US6771791 Air pump speaker
07/2004
07/29/2004WO2004064448A1 Loudspeaker
07/29/2004WO2004010728A3 Pole plate for a magnetic drive in a loudspeaker
07/29/2004US20040146175 Resonance frequency correction method and vibration speaker
07/29/2004US20040146174 Speaker
07/29/2004US20040146173 Racetrack-shaped magnetic loop and coil for use in the miniature electro-dynamic transducer
07/29/2004US20040145859 Acoustic device
07/29/2004US20040145258 Electro-mechanical transducer
07/28/2004EP1441560A1 Speaker having magnetic member installed on diaphragm
07/28/2004EP1440602A1 Improved moving coil transducer
07/28/2004CN2629379Y Loudspeaker with coexisting magnet structure
07/28/2004CN1159950C Monolithic integrated capacitor type silicon base micro microphone and its producing process
07/28/2004CN1159949C Planar acoustic transducer
07/27/2004US6768806 Shorting rings in dual-coil dual-gap loudspeaker drivers
07/22/2004WO2004061547A2 Automatic digital music library builder
07/22/2004WO2004028200A3 Magnetic circuit for electromechanical transducers
07/22/2004WO2004014104A3 Electroacoustic transducer with built in transducer circuit
07/22/2004US20040141629 Combination voice coil and diaphragm device for receiver and its fabrication method
07/22/2004CA2749116A1 Automatic digital music library builder
07/21/2004EP1439731A1 An electroacoustic transducer
07/21/2004EP1438872A2 Electroacoustic transducer having a moving coil and having movable holding elements for the connecting leads of the moving coil
07/21/2004EP1234477B1 Speaker and motor vehicle assembly
07/21/2004CN2627780Y 智能型电子体温耳机 Intelligent electronic temperature headphones
07/21/2004CN2627779Y Telephone receiver
07/21/2004CN2627778Y Loudspeaker structure modification
07/21/2004CN2627777Y Centering supporter fixing supplementary structure
07/21/2004CN1158901C Miniature loudspeaker and its manufacturing method
07/21/2004CN1158896C Apparatus including electroacoustic transducer having terminal contacts which extend in the direction of the transducer axis and including printed circuit board having mating contacts
07/20/2004US6766034 Multifunction acoustic device
07/15/2004US20040136561 Speaker having magnetic member installed on diaphragm
07/15/2004US20040136560 Condensed speaker system
07/15/2004US20040136559 Voice coil and a speaker that uses the voice coil
07/15/2004US20040136558 Electroacoustic transducer and electronic apparatus
07/15/2004US20040136272 Electroacoustic transducer being acoustical tight in the area of its air gap for its moving coil
07/15/2004DE10317980A1 Loudspeaker system for acoustic and audio applications, comprises moving diaphragm made of synthetically produced polycrystalline diamond to which conductive tracks are fixed
07/15/2004DE10261682A1 Wireless speech output system for mobile communication system, has electroacoustic transducer arranged in tooth, with electromagnetic energy received by moving coil and rectified
07/14/2004EP1437914A2 A voice coil and a speaker that uses the voice coil
07/14/2004EP1437030A1 An electro-acoustic transducer with two diaphragms
07/14/2004CN2626168Y Doublefaced moving-coil type electroacoustic convertor
07/14/2004CN2626167Y Coaxial loudspeaker with one magnet shared by four units
07/14/2004CN1512818A Electroacoustic converter and electronic device
07/14/2004CN1157991C Speaker device
07/13/2004US6763120 Speaker
07/08/2004WO2003061338A8 Light exhibiting speaker
07/08/2004US20040131255 Automatic digital music library builder
07/08/2004US20040131223 Electromagnetic transducer having a hybrid internal/external magnet motor geometry
07/07/2004CN2624571Y Zero horizontal separation same-source audio basin radiation high pitch loudspeaker
07/07/2004CN2624570Y Active servo low-distortion loud-speaker system
07/07/2004CN1510966A Guard of loundspeaker
07/07/2004CN1157088C Multifunctional music centre apparatus
07/06/2004US6760462 Planar diaphragm loudspeakers with non-uniform air resistive loading for low frequency modal control
07/06/2004US6760461 Vehicle loudspeaker
07/01/2004US20040125981 Electroacoustic transducer
07/01/2004US20040125980 Electromagnetic transducer with asymmetric diaphragm
07/01/2004US20040125971 Combination loudspeaker unit
06/2004
06/30/2004EP1434463A2 Electroacoustic transducer and electronic apparatus with such a transducer
06/30/2004CN2622976Y 高音扬声器 Tweeter
06/30/2004CN2622975Y Shell viberating loudspeaker
06/30/2004CN2622974Y Low inductive electromagnetic driver
06/30/2004CN2622973Y Full-frequency constant loudspeakers
06/30/2004CN1509119A Push-push multiple magnetic air gap transducer
06/30/2004CN1156197C Horn-type loudspeaker system
06/29/2004US6757404 Loud speaker, diaphragm and process for making the diaphragm
06/29/2004US6757403 Electroacoustic transducers
06/29/2004US6757402 Knockdown speaker
06/24/2004US20040120542 Loudspeaker with a bellow-shaped surround
06/24/2004DE10256448A1 Two-way or multi-way loudspeaker has dynamic loudspeaker section and high-frequency unit formed by piezoelectric loudspeaker with piezo element firmly attached to center of diaphragm
06/23/2004CN1507302A Loudspeaking device
06/23/2004CN1155291C Electroacoustic transducer including elastic contact formed with at least one bended part
06/22/2004US6754363 Structure of dual magnetic loop type receiver
06/22/2004US6754362 Speaker and speaker system
06/17/2004WO2004052051A1 Voice coil insertion jig, speaker producing method using the jig, and speaker produced by using the jig
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