H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type

Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486)
12/2004
12/14/2004	US6831989 Electroacoustic transducer having a moving coil and having movable holding elements for the connecting leads of the moving coil
12/09/2004	WO2004107801A2 Audio speaker having a removable voice coil
12/09/2004	US20040245864 Moving coil transducer
12/09/2004	DE10321690A1 Lautsprecher Speaker
12/08/2004	EP1484941A1 Loudspeaker
12/08/2004	CN2662581Y Closing component combined loudspeaker
12/08/2004	CN2662580Y A loudspeaker sounding body
12/08/2004	CN1554210A An electro-acoustic transducer with two diaphragms
12/08/2004	CN1554209A Loudspeakers
12/08/2004	CN1553743A Electromagnetic transducer having a low reluctance return path
12/07/2004	US6829366 Magnetic circuit and loudspeaker using the same
12/02/2004	US20040240702 Speaker and manufacturing method for the same
12/02/2004	US20040240701 Method and audio speaker with minimization of wobble of the voice coil
12/02/2004	US20040240700 Audio speaker having a removable voice coil
12/02/2004	US20040239193 Electromagnetic motor with flux stabilization ring, saturation tips, and radiator
12/02/2004	DE202004015635U1 Koaxiallautsprecher mit wellenförmiger Membran Coaxial speaker with wavy membrane
12/01/2004	EP1482762A2 Speaker and method of manufacturing the same
12/01/2004	EP1482761A2 Speaker and manufacturing method for the same
12/01/2004	EP1481570A1 Loudspeaker with shaped sound field
12/01/2004	EP1481569A1 Flexible diaphragm with integrated coil
12/01/2004	CN1551680A Electromagnetic transducer having a hybrid internal/external magnet motor geometry
12/01/2004	CN1178551C Micro loudspeaker
12/01/2004	CN1178550C Multifunctional acoustics device
12/01/2004	CN1178549C Permanent magnet assembly
11/2004
11/25/2004	WO2004103017A1 Speaker
11/25/2004	WO2004030407A3 Drive mechanism
11/25/2004	US20040237111 Multimedia and entertainment system for an automobile
11/25/2004	US20040234096 Micro-speaker and method for assembling a micro-speaker
11/25/2004	US20040234095 Sound reproducing system using sound pressure
11/24/2004	EP1480491A1 Thin speaker and method of manufacturing the speaker
11/24/2004	CN2659074Y Whole diapason loudspeaker
11/24/2004	CN2659073Y Miniature plate loudspeaker
11/23/2004	US6820719 Butterfly damper
11/18/2004	DE10319358A1 Foil converter used in magnetostatics operates according to the magnetostatic principle
11/17/2004	EP1478210A2 Loudspeaker
11/17/2004	EP1478209A2 Loudspeaker
11/17/2004	EP0847661B2 Acoustic device
11/17/2004	CN2657324Y Two-magnet three-unit coaxial loudspeaker
11/17/2004	CN1547419A Speaker and magnetic circuit used for the speaker
11/16/2004	US6819773 Loudspeaker with a three-dimensional diaphragm
11/16/2004	US6817084 Method for manufacturing a speaker apparatus
11/11/2004	US20040223423 Optical pick-up actuator and method for assembling an optical pick-up actuator
11/10/2004	EP1475993A1 Acoustic system with multiple ribbon type transducers
11/10/2004	EP1474952A1 Moving-coil electrodynamic motor particularly for a loudspeaker, loudspeaker and corresponding pole piece
11/10/2004	EP1354496B1 An electroacoustic transducer
11/10/2004	CN2655579Y Loadspeaker with small outline structure
11/10/2004	CN1545821A Loudspeaker with a three-dimensional diaphragm
11/09/2004	US6815063 Magnetic fluid
11/09/2004	US6814181 Electrically conductive damper device for speaker
11/04/2004	US20040218779 Loudspeaker
11/04/2004	US20040218778 Loudspeaker suspension for achieving very long excursion
11/04/2004	US20040218773 Loudspeaker array
11/03/2004	EP1472903A2 Transducer motor/generator assembly
11/02/2004	US6810988 Speaker's damper with lead wire and guide sleeve
10/2004
10/28/2004	WO2004093488A2 Directional speakers
10/28/2004	US20040213431 Electromagnetic audio transducer and or audio speaker
10/28/2004	US20040213430 Laminated motor structure for electromagnetic transducer
10/28/2004	US20040213422 Pollable transformer isolated speaker system and method
10/28/2004	US20040212254 Tube geometry motor for electromagnetic transducer
10/28/2004	US20040211310 Sound pickup device for percussion instrument
10/27/2004	EP1470734A2 Low profile audio speaker
10/27/2004	CN1541498A Magnetic circuit for loudspeaker and loudspeaker comprising it
10/27/2004	CN1173555C Electroacoustic converter
10/26/2004	US6810129 Waterproof speaker for use in an automobile
10/26/2004	US6810128 Electromagnetic induction actuator and portable telecommunications equipment
10/21/2004	WO2004091180A1 Telephone transmitter/receiver
10/21/2004	US20040209654 Directional speaker for portable electronic device
10/21/2004	US20040208337 Permanent magnet actuator with electric excitation coil, especially loudspeaker and mobile telephone
10/21/2004	US20040208333 Directional hearing enhancement systems
10/21/2004	US20040208325 Method and apparatus for wireless audio delivery
10/21/2004	US20040208324 Method and apparatus for localized delivery of audio sound for enhanced privacy
10/21/2004	CA2520816A1 Telephone transmitter/receiver
10/20/2004	EP1469704A1 Voice coil insertion jig, speaker producing method using the jig, and speaker produced by using the jig
10/20/2004	EP1469700A2 A coil for an electroacoustic transducer
10/20/2004	CN2650439Y Side-sounding loudspeaker
10/20/2004	CN1539252A Sound reproducing system using sound pressure
10/20/2004	CN1172557C Epoxy resin cloth coil and its making process
10/14/2004	WO2004089037A1 Speaker
10/14/2004	US20040202347 Flat speaker of full-face driving
10/14/2004	US20040202343 Speakerphone accessory assembly
10/14/2004	US20040202342 Compound loudspeaker drive unit having a magnet system
10/13/2004	EP1467594A2 Loudspeaker
10/13/2004	CN2648750Y Receiver capable of improving frequency response
10/13/2004	CN2648749Y Moving coil type electroacoustic converter with self-sticking layer plastic rubber ring
10/13/2004	CN1536932A Loudspeaker
10/13/2004	CN1536853A Loudspeaker fixture
10/13/2004	CN1171502C Signal converter
10/13/2004	CN1171501C Loudspeaker
10/12/2004	US6804370 Speaker capable to playback in wide frequency range
10/12/2004	US6804369 Electroacoustic transducer
10/12/2004	US6804368 Micro-speaker and method for assembling a micro-speaker
10/12/2004	US6804366 Speaker apparatus
10/07/2004	WO2004086815A1 Miniaturised electroacoustic transducer
10/07/2004	US20040197007 Loudspeaker
10/07/2004	US20040197006 Voice coil of speaker
10/07/2004	US20040197005 Magnet system of a sound transducer
10/07/2004	US20040197004 Speaker apparatus
10/07/2004	US20040197003 Voice coil for loudspeaker and loudspeaker device
10/07/2004	US20040196987 Universal audio speaker connection block
10/07/2004	US20040195039 Audio speaker with wobble free voice coil movement

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