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US20070237352 Miniature loudspeaker and magnetic circuit having integrated air flow passage  
The present invention relates to a miniature electro-acoustic transducer comprising a magnetic circuit comprising a permanent magnet assembly adapted to generate a magnetic flux in an air gap, the...
US20050031151 Speaker with adjustable voice coil impedance  
A loudspeaker includes a diaphragm, a magnetic core, and a plurality of coils in a flux communicating relationship with the magnetic core. The plurality of coils are connected to a switching...
US20060210107 Speaker driver  
An electro-acoustical transducer, including a magnetic assembly producing a magnetic field having two or more displaced regions of greater intensity, having magnetic flux in substantially similar...
US20140056468 MAGNETIC CIRCUIT FOR LOUDSPEAKER AND LOUDSPEAKER USING THE SAME  
A magnetic circuit for a loudspeaker includes a magnet and a top plate. The magnet is made of a bonded magnet. The magnet and the top plate are configured to satisfy at least one of conditions...
US20050123166 Structure of speaker  
A structure of speaker is disclosed. The disclosed speaker structure includes at least a bobbin, a coil, a membrane, and a magnetic assembly. The coil is wound around the side surface of the...
US20150296302 LOUDSPEAKER WITH COMPLIANTLY COUPLED LOW-FREQUENCY AND HIGH-FREQUENCY SECTIONS  
A loudspeaker comprises a first acoustically radiating moving-coil transducer and a second acoustically radiating moving-coil transducer. Each transducer is actively driven by an electrical input...
US20070121994 Speaker apparatus  
A speaker apparatus comprises an inner magnet type magnetic circuit for driving a voice coil connected to a vibrating plate. The magnetic circuit comprises; a yoke; a magnet at least partly...
US20160057542 DATA TRANSMISSION FROM SPEAKERS USING MAGNETIC FLUX COUPLING  
Disclosed are various embodiments for data transmission from speakers using magnetic flux coupling. A speaker driver of a first device transmits a magnetic flux signal encoding configuration...
US20070230719 Efficient production of mechanical sound vibration  
An efficient method and apparatus for converting audio signals into mechanical vibrations is disclosed, the apparatus comprising a simple transducer. The transducer forms a dynamic magnetic field...
US20160227327 Speaker Box  
A speaker box is disclosed in the present disclosure. The speaker box includes a housing having a receiving space and a sidewall provided with a sound output hole communicating with the receiving...
US20110135142 MAGNETIC CIRCUIT AND SPEAKER USING SAME  
Disclosed is a magnetic circuit for a speaker. The magnetic circuit includes a yoke defining a bottom and a sidewall extending perpendicularly from the bottom, a magnet mounted on the bottom of...
US20150078612 STRUCTURE OF SPEAKER DRIVER  
The present invention is to provide a structure of speaker driver, it comprising a base, a drum paper, a yoke, a sound coil and a magnetic unit. The base includes an upper combining portion and a...
Matches 1 - 12 out of 12