Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486) |
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06/23/2005 | US20050135648 Mechanical acoustic filter by erosion etching |
06/22/2005 | EP1545151A2 Speaker device with improved magnetic ciruit |
06/22/2005 | EP1543702A2 Drive mechanism |
06/22/2005 | CN1630432A Chip having high sensitivity for silicon micro-capacitor microphone and preparation method thereof |
06/22/2005 | CN1630431A 扬声器结构 Speaker structure |
06/22/2005 | CN1630425A Speaker device |
06/21/2005 | US6909788 Speaker voice coil bobbin and method of manufacturing same |
06/21/2005 | US6907955 Electromagnetic electroacoustic transducer |
06/16/2005 | WO2005055649A1 Plate type speaker using horizontal vibration voice coil |
06/16/2005 | WO2005055648A1 Plane speaker having coil plate guide device |
06/16/2005 | WO2005055647A1 Plane speaker having closed loop coil plate |
06/16/2005 | WO2005055646A1 Voice coil plate and plane speaker including the same |
06/16/2005 | WO2004107801B1 Audio speaker having a removable voice coil |
06/16/2005 | US20050129267 Resonant panel-form loudspeaker |
06/16/2005 | US20050129266 Speaker device |
06/16/2005 | US20050129265 Exciter for directly vibrating board and speaker apparatus used the same |
06/16/2005 | US20050129264 System module |
06/16/2005 | US20050129260 Injection method of inserting spring into multifunctional actuator |
06/15/2005 | EP1542498A2 Driving circuit, electro-mechanical-acoustic transducer, and portable terminal apparatus |
06/15/2005 | EP1542497A1 Vibration actuator device of portable terminal |
06/15/2005 | EP1540993A2 Audio radiator with radiator flexure minization and voice coil elastic anti-wobble members |
06/15/2005 | EP1540989A2 Magnetic circuit for electromechanical transducers |
06/15/2005 | CN1627863A USB speaker switching device |
06/09/2005 | US20050125087 Promotional portable music players |
06/09/2005 | US20050123166 Structure of speaker |
06/08/2005 | EP1538871A2 Speaker device |
06/08/2005 | EP1538870A1 Piston-type panel-form loudspeaker |
06/08/2005 | EP1538869A1 Loudspeaker with static device for forcing and aligning loudspeaker cooling air-streams |
06/08/2005 | CN1625917A Low profile audio speaker |
06/08/2005 | CN1205840C Electroacoustic transducer having moving coil and having elastic holding elements with the connecting leads of the moving coil |
06/08/2005 | CN1205839C Magnetic path of miniature loudspeaker |
06/07/2005 | US6904158 Speaker apparatus |
06/07/2005 | US6904154 Acoustic device |
06/07/2005 | US6903474 Electro-mechanical transducer |
06/02/2005 | US20050117772 Thin type speaker having a damper |
06/02/2005 | US20050115728 Method and device arrangement for improving the sound quality of an audio system |
06/02/2005 | DE10052151B4 Vibrationslautsprecher Vibration speaker |
06/01/2005 | EP1536665A1 Member for electric equipment, member for electroacoustic transducer and method for manufacture thereof |
06/01/2005 | CN2703377Y Vibro-damping mounted loudspeaker |
06/01/2005 | CN2703376Y Double-wire parallel wound voice coil |
06/01/2005 | CN2703374Y Air defense warning loudspeaker |
06/01/2005 | CN1622693A Loud speaker devcie |
06/01/2005 | CN1622692A Loud speaker and method for manufacturing the same |
06/01/2005 | CN1622691A Loud speaker and method for manufacturing the same |
06/01/2005 | CN1622685A Loud speaker |
06/01/2005 | CN1622684A Loud speaker |
06/01/2005 | CN1622683A Loud speaker |
05/31/2005 | US6901150 Permanent magnet actuator with electric excitation coil, especially loudspeaker and mobile telephone |
05/31/2005 | US6899794 Speaker device, and method and device for producing the same |
05/26/2005 | WO2005048652A1 Electro-acoustic transducer comprising an rfid circuit |
05/26/2005 | US20050111690 Speaker apparatus |
05/26/2005 | US20050111689 Loudspeaker with assembly and performance improvements |
05/25/2005 | EP1532840A1 Loudspeaker with inverted cone |
05/25/2005 | EP1532838A2 Electro-dynamic planar loudspeakers |
05/25/2005 | EP1532743A1 Subminiature bone vibrating speaker using the diaphragm and mobile phone thereby |
05/25/2005 | DE202005002983U1 Control device for household management functions, has remote control switch with channel for signal output |
05/25/2005 | CN2702569Y Double-magnet electroacoustical transducer |
05/25/2005 | CN2702568Y Loudspeaker assembly having illuminating device |
05/25/2005 | CN1620839A Flexible diaphragm with integrated coil |
05/25/2005 | CN1620194A Speaker device |
05/25/2005 | CN1620193A Speaker device |
05/25/2005 | CN1620189A Acoustic apparatus |
05/25/2005 | CN1203725C Small size loudspeaker for mobile telephone |
05/19/2005 | WO2005046067A1 Mobile telephone having speaker with waterproof structure |
05/19/2005 | US20050105758 Audio speaker and method for assembling an audio speaker |
05/19/2005 | US20050105757 Electromagnetic transducer with eccentrically mounted voice coil former |
05/19/2005 | US20050105756 Speaker device |
05/19/2005 | US20050105748 Integrated flexible display and speaker apparatus and method |
05/19/2005 | US20050105745 Dual-element speaker device |
05/19/2005 | DE10347592A1 Loudspeaker system with symmetrical acoustic compression, has convex body arranged between two similar loudspeakers arranged to face each other |
05/18/2005 | EP1531648A2 Speaker device |
05/18/2005 | CN2701205Y A Hi-Fi loudspeaker |
05/18/2005 | CN2701204Y A Hi-Fi loudspeaker |
05/18/2005 | CN1617629A Porting |
05/17/2005 | US6895378 System and method for producing acoustic response predictions via a communications network |
05/17/2005 | US6895099 Compact speaker for portable phone |
05/17/2005 | US6895097 Planar type speaker and system using it |
05/12/2005 | WO2005043952A1 Sound generating transducer |
05/12/2005 | WO2004107801A3 Audio speaker having a removable voice coil |
05/12/2005 | US20050099255 Transducer with dual coil and dual magnetic gap |
05/11/2005 | EP1529417A1 Loudspeaker |
05/11/2005 | CN2699611Y Vibration structure of multifunctional electronic sound equipment converter |
05/11/2005 | CN2699610Y Structure modification of loudspeaker metal body and voice coil |
05/05/2005 | US20050094843 Sound generating transducer |
05/05/2005 | US20050094842 Speaker device and method for manufacturing the same |
05/05/2005 | US20050094837 Porting |
05/05/2005 | US20050092543 Speaker |
05/04/2005 | EP1528836A2 Porting and heat removal in acoustic devices |
05/04/2005 | EP1527654A2 Electroacoustic transducer with built in transducer circuit |
05/04/2005 | EP1262088B1 Compound driver for acoustical applications |
05/04/2005 | CN2697995Y Improved structure for loudspeaker |
05/04/2005 | CN2697994Y Low frequency loudspeaker with improved diaphragm structure |
05/04/2005 | CN1200547C Electroacoustic changer with back terminal |
05/03/2005 | US6888433 Method for producing repulsion magnetic circuit and its production system |
04/28/2005 | WO2005039265A1 Transducer design for rugged portable communications products |
04/28/2005 | WO2005039235A1 Speaker, speaker module, and electronic apparatus using the speaker module |
04/28/2005 | US20050089187 Nanoporous diaphragm for electromagentic transducer |
04/27/2005 | EP1525775A1 One-magnet rectangular transducer |
04/27/2005 | EP1525774A1 Sound transducer comprising a small rear volume chamber |
04/27/2005 | EP1525526A1 Mobile handset and assembly having multi-loudspeaker system |