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