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US20120281861 VIBRATION DIAPHRAGM AND SPEAKER WITH A VIBRATION DIAPHRAGM  
A vibration diaphragm for a speaker has a spherical bowl section, an annular intervening section and an annular outer section. The spherical bowl section has a top and a spherical cavity defined...
US20140037126 ELECTRICALLY CONDUCTIVE MEMBRANE PUMP/TRANSDUCER AND METHODS TO MAKE AND USE SAME  
An improved electrically conductive membrane pump/transducer, such as a graphene membrane transducer.
US20120269378 LOUDSPEAKER MAGNET ASSEMBLY  
A loudspeaker magnet assembly for a loudspeaker transducer having a voice coil is provided that has a low profile construction. The loudspeaker magnet assembly may include: a first magnet...
US20120170793 MICRO-SPEAKER  
A micro-speaker includes a yoke, a magnet assembly attached to the yoke, a voice coil, and a diaphragm connected with the voice coil. The yoke defines a bottom wall, and a number of sidewalls...
US20140079258 LOUDSPEAKER, INNER-EAR HEADPHONE INCLUDING LOUDSPEAKER, AND HEARING AID INCLUDING LOUDSPEAKER  
A loudspeaker includes: a frame; a yoke fixed to the frame; a magnet fixed to the yoke; a plate fixed to an upper surface of the magnet which is opposite to a surface of the magnet which is fixed...
US20150208178 ELECTRICALLY CONDUCTIVE MEMBRANE PUMP/TRANSDUCER AND METHODS TO MAKE AND USE SAME  
An improved electrically conductive membrane pump/transducer. The electrically conductive pump/transducer includes an array of electrically conductive membrane pumps that combine to move a larger...
US20150208177 ELECTRICALLY CONDUCTIVE MEMBRANE PUMP/TRANSDUCER AND METHODS TO MAKE AND USE SAME  
An improved electrically conductive membrane pump/transducer. The electrically conductive pump/transducer includes an array of electrically conductive membrane pumps that combine to move a larger...
US20130156253 ELECTRODYNAMIC SPEAKER STRUCTURE HAVING MEMS TECHNOLOGY  
Said electrodynamic speaker structure having MEMS technology, comprising a stator-forming means (2), diaphragm-forming means (3), and resiliently shape-changing means (4) for connecting all of...
US20080232633 Shallow Loudspeaker  
Loudspeaker provided with a frame (101), a membrane (103) and a drive unit (105. The membrane has a flat outer circumferential edge (104a) suspended from the frame, and a flat inner...
US20110255732 MULTIFUNCTIONAL MICRO SPEAKER  
A multifunctional micro speaker including a frame; a diaphragm having an outer circumferential portion fixed to the frame; a voice coil fixed to a lower surface of the diaphragm; a first...
US20120250928 AUDIO TRANSDUCER  
An electronic device having an enclosure including an upper panel and a bottom panel operably connected to the upper panel. A transducer is operably connected to the enclosure and the transducer...
US20080181445 Full-gamut single-body sound membrane that conforms to a physical property of sounding  
A full-gamut single-body sound membrane that conforms to a physical property of sounding is a single-body sound membrane structure which breaks through a structural limitation that a uniform...
US20120093353 Micro Speaker  
A speaker comprises a permanent magnet (2) and a coil (8) positioned around the permanent magnet (2) and attached to a membrane (10), wherein the membrane comprises an elastomer of thickness less...
US20070189577 Ferrofluid Centered Voice Coil Speaker  
An audio speaker has a driver unit having a support frame with a central portion forming a magnetic structure defining an annular gap around a central magnetic post, a vibration system having a...
US20070189572 LOUDSPEAKER SYSTEM FOR ACOUSTIC INSTRUMENTS AND METHOD THEREFOR  
A speaker cabinet including at least one bass speaker having a voice coil aligned by a magnetic fluid without a ‘spider’ and having an anodised metal cone, and at least one further speaker having...
US20050271244 Resin frame, resin grille and speaker device  
A speaker device includes a resin frame and a resin grille mounted thereto. In the resin frame and the resin grille, engaging claws that engage with each other are formed, respectively. An...
US20050089187 Nanoporous diaphragm for electromagentic transducer  
An electromagnetic transducer such as a tweeter audio speaker, having a very low density diaphragm constructed of a nanoporous material such as aerogel or the like. The solid aerogel diaphragm has...
US20070237350 Dynamic loudspeaker  
A dynamic loudspeaker comprises two spaced apart motor units (7,8) each incorporating a centre pole (12) operating in opposite phase resulting in cancellation of 3rd order non-linearities, and the...
US20070098207 STRUCTURE OF RIBBON TYPE PLANAR SPEAKER  
A structure of ribbon type planar speaker is provided, which includes a composite diaphragm with a flexible edge fixed on a fixed end; a first magnet and a second magnet, respectively disposed...
US20120155693 ELECTROACOUSTIC TRANSDUCER  
An electroacoustic transducer is disclosed. The electroacoustic transducer includes a frame forming a hollow space, an elastic plate mounted on the frame, a vibrating member suspended in the...
US20110142277 Accoustic device  
An acoustic device intended to operate pistonically and in bending comprising a panel-form acoustic radiator, a magnetic drive system including a voice coil on a tubular bobbin, the bobbin being...
US20120207339 MULTIPLE MAGNETIC AIR GAP MOTOR  
A low frequency transducer arrangement includes a substantially cylindrical structure surrounding a pole piece. The pole piece and the substantially cylindrical structure define a substantially...
US20050220320 Speaker for mobile terminals and manufacturing method thereof  
Disclosed herein are a speaker for mobile terminals which has a slim structure and has a wide frequency characteristic and an excellent high frequency distortion characteristic, thus accomplishing...
US20070154056 Loudspeaker with air deflector  
An air deflector is positioned relative to the through bore in the pole piece of the motor structure of a speaker such that the flow of air entering and leaving a cavity overlying the voice coil...
US20150201280 Method of Manufacturing Speaker with Diaphragm Arrangement  
A manufacturing method of a diaphragm arrangement for a speaker includes the steps of mold injecting polypropylene material as a raw material to form a middle foaming layer, and sandwiching the...
US20120263336 LOUDSPEAKER MAGNET HAVING A CHANNEL  
A transducer magnet for a low profile loudspeaker transducer is provided having a voice coil, surround suspension, diaphragm, and top plate. The transducer magnet may include a first magnet...
US20100021000 Sound Producing System  
A sound producing system includes an electro-acoustic transducer having an electromagnetic motor for moving a diaphragm of the transducer back and forth to create acoustic waves. The diaphragm has...
US20070127766 Multi-channel speaker utilizing dual-voice coils  
A speaker that utilizes a dual voice coil speaker element to generate sound corresponding to more than one sound channel is disclosed. The speaker may be paired with a substantially identical...
US20060233415 Vibration-sound generating device and yoke thereof  
A vibration-sound generating device and yoke thereof are described. The vibration-sound generating device comprises a diaphragm, a vibration part comprising a magnet and a yoke, which is...
US20120230535 ELECTRONIC DEVICE  
An electronic device includes a jack electrically connecting an outer speaker, a power controller, an audio generator electrically connecting the jack and the power controller, and an inner...
US20070291976 Electrodynamic exciter  
An electrodynamic exciter has a tubular frame, a magnetic circuit assembly, a voice coil, and first and second suspensions axially vibratably supporting the magnetic circuit assembly and the voice...
US20070297638 Boundary layer regulator for extended range acoustical transducers  
An improved method and device for controlling cone breakup (divisional modes) in extended range, cone diaphragm type electromechanical acoustical transducers for reproducing an acoustical signal...
US20120155694 MULTI-LAYER ARMATURE FOR MOVING ARMATURE RECEIVER  
A multi-layer armature for a moving armature receiver. The armature includes a first armature layer and a displacement region. The first armature layer includes a first surface and a second...
US20130188822 MAGNET-LESS LOUDSPEAKER  
The instant disclosure relates to a loudspeaker, which includes a ferrite core, a voice coil, and a movable membrane. The voice coil is wound around the core and cooperatively defining an exciting...
US20150078610 Electrodynamic Loudspeaker with Conducting Elements  
A loudspeaker includes a motor assembly including a magnet having a first face and a second face, a back plate abutting the magnet first face, a pole piece centrally disposed with respect to the...
US20070223776 Sound sponge for loudspeakers  
The specification and drawings present a new method and apparatus for reducing loudspeaker size by partitioning the back cavity of the loudspeaker using a sound sponge block. The sound sponge...
US20070165889 Microphone apparatus having a number of silicon microphones for a hearing apparatus  
It is intended to be able to manufacture multiple microphones for realizing highly reliable directional microphones for hearing apparatuses, and in particular for hearing devices, in a simpler...
US20070165902 Electrodynamic electroacoustic transducer and electronic device  
An electrodynamic electroacoustic transducer comprises: a first magnetic pole; a second magnetic pole that forms a magnetic gap between itself and the first magnetic pole and is arranged in a...
US20120155695 SPEAKER DEVICE FOR A PORTABLE TERMINAL  
A speaker device for a portable terminal includes: an electromagnetic wave noise shield member mounted on a circuit board; a speaker unit mounted on the electromagnetic wave noise shield member,...
US20150256937 COMPOSITE DIAPHRAGM  
A composite diaphragm is provided to include a base layer and a micro-nanometer ceramic layer disposed on the surface of the base layer. The micro-nanometer ceramic is a structural material that...
US20070269076 Electroacoustic Transducer and Electronic Device Using the Same  
An electroacoustic transducer has a magnetic circuit, a frame combined with the magnetic circuit, a diaphragm combined with a periphery of the frame, a voice coil, a terminal, and a holder...
US20070071272 3-1 Mode capacitive membrane ultrasound transducer  
A capacitive membrane ultrasound transducer is provided. Membranes or other microelectromechanical devices are provided in a 3-1 geometry, allowing application of an electric field substantially...
US20090141925 Electro-dynamic transducer with a slim form factor  
In one embodiment of the present invention, an electro-dynamic transducer is disclosed including a diaphragm, a first suspension suspending the diaphragm, a coil former attached to the diaphragm,...
US20080101647 FULL-RANGE SPEAKER DEVICE  
A full-range speaker device is provided herein that can deliver high-fidelity trebles. The major feature of the present invention lies in that the voice coil is sandwiched between two or more...
US20060078152 Ribbon microphone incorporating a special-purpose transformer and/or other transducer-output circuitry  
Provided is a ribbon-microphone circuit that includes a ribbon transducer and a specially designed transformer. In various possible configurations, the transformer: is a toroidal transformer, has...
US20130163806 DRIVER ASSEMBLY FOR LOUDSPEAKERS  
In one embodiment, a loudspeaker system is provided comprising a motor assembly for driving a diaphragm assembly, where the motor assembly includes a pole piece configured to receive an inductance...
US20110051985 PIEZOELECTRIC MICRO SPEAKER HAVING PISTON DIAPHRAGM AND METHOD OF MANUFACTURING THE SAME  
Provided are a piezoelectric micro speaker having a piston diaphragm and a method of manufacturing the piezoelectric micro speaker. The piezoelectric micro speaker includes: a substrate having a...
US20060182306 COMPONENT OF A TRACTION DEVICE, METHOD OF MANUFACTURING AND TRACTION DEVICE USING THE SAME  
A process of conditioning a corrugated diaphragm adapted for use in a traction device in order to impart a spring force. The process includes obtaining a neutral state corrugated diaphragm with a...
US20100022963 MEDICAMENT DELIVERY DEVICE CONFIGURED TO PRODUCE AN AUDIBLE OUTPUT  
Medicament delivery devices are described herein. In some embodiments, an apparatus includes a medicament delivery device and an electronic circuit system. The medicament delivery device includes...
US20060188120 Multiple active coil speaker  
A voice tube assembly for a loudspeaker comprising a basket, a cone, and a spider includes a first magnet. The first magnet is configured for attachment onto the basket and has a principle axis. A...
Matches 1 - 50 out of 148 1 2 3 >