Matches 1 - 50 out of 156 1 2 3 4 >


Match Document Document Title
US20110299717 LOUDSPEAKER WITH REPLACEABLE MOTOR ASSEMBLY  
A loudspeaker is provided in which precise alignment is obtained between the frame and motor assembly before they are connected to one another so that a voice coil coupled to the frame may be...
US20150110335 Integrated Speaker Assembly  
An open modular speaker assembly is configured to be inserted into a mobile wireless device and includes a frame, a magnetic assembly that is disposed within the frame and a membrane assembly...
US20120328147 SPEAKER  
A speaker is disclosed herein. And, in configuring a magnetic circuit of the speaker, unlike the vertical polarity alignment of the related art speaker, the polarities of the magnet are configured...
US20120121121 SPEAKER HAVING A HORIZONTAL FORMER  
A speaker includes a frame, a sound radiating surface, and a suspension that couples the sound radiating surface to the frame. A horizontal former is coupled to the radiating surface. The former...
US20120008816 ELECTROACOUSTIC VIBRATING TRANSDUCER  
An electroacoustic vibrating transducer is disclosed. The electroacoustic vibrating transducer includes a frame defines a hollow space, a yoke positioned in the hollow space, and a elastic member...
US20110188697 Flat thin dynamic speaker  
A flat thin dynamic speaker which includes a motor unit, a suspension unit, a radiating unit and a frame arranged in such a manner that the motor unit and the suspension unit are at the same plane...
US20090304222 LOW COST MOTOR DESIGN FOR RARE-EARTH-MAGNET LOUDSPEAKERS  
A loudspeaker magnetic motor utilizes a voice coil with two or more wire coils that are connected in parallel and that are layered on top of one another. The motor utilizes, as a magnetic field...
US20130114846 ELECTRODYNAMIC TRANSDUCER HAVING A DOME AND A BUOYANT HANGING PART  
Electro-dynamic transducer including a main magnetic circuit defining an air gap, a moving part comprising a dome shaped diaphragm and a movable coil fixed thereto and diving into the air gap; a...
US20120051580 MAGNETIC CIRCURT AND SPEAKER USING SAME  
The present invention provides a magnet assembly and speaker including such a magnet assembly. The magnet assembly includes an outer magnet defining a pair of first plat magnets, an inner magnet...
US20140056464 Micro-Speaker  
A micro-speaker includes a vibrating unit including a diaphragm, a voice coil, and a magnetic circuit unit supporting the diaphragm. The diaphragm includes a position portion serving as an edge of...
US20070223775 Voice coil bobbin and speaker system  
A voice coil bobbin, which transmits a motive force from the voice coil wound around the bobbin to a diaphragm, includes a main part, a reinforcement part formed on the surface side of the main...
US20130070954 ELECTRODYNAMIC TRANSDUCER HAVING A DOME AND AN INNER HANGING PART  
Electro-dynamic transducer (1) including: a main magnetic circuit (2) defining an air gap (15),a moving part (16) comprising a dome shaped diaphragm (17) fixed to a movable coil (18) diving into...
US20130266173 LOW-PROFILE SPEAKER  
A low-profile speaker that includes a low-profile frame, and a first magnet assembly disposed in the low-profile frame. The first magnet assembly has a first cage and a plurality of magnets...
US20050008188 Loudspeaker with a double spider centering system  
A loudspeaker includes a frame, a diaphragm disposed in the frame, a motor system for the diaphragm including a magnet system attached to the frame and a voice coil system attached to the...
US20140056465 Speaker  
A speaker includes a vibrating unit, and a magnetic circuit unit. The vibrating unit includes a diaphragm, an elastic plate coupled with the diaphragm, and a voice coil electrically connecting to...
US20100296689 LOUDSPEAKER SUSPENSION  
A loudspeaker comprising a frame, a voice coil assembly disposed within the frame, a magnet assembly disposed within the frame and a first suspension element having an outer edge and an inner...
US20130136295 Loudspeaker Based on "The Principle of The Center Of Percussion."  
A transducer of electrical oscillations to mechanical oscillations, mainly a loudspeaker having in general an elongated oscillating member attached by joints to a surrounding structure in areas of...
US20120263339 SPEAKER  
A damper, which is an element of a speaker and suppresses the rolling of a voice coil unit, includes a corrugated structure portion at its inner periphery and a leaf spring at its outer periphery....
US20120263340 LOW PROFILE LOUDSPEAKER SUSPENSION SYSTEM  
A surround suspension system for a low profile loudspeaker transducer having a former, diaphragm, and loudspeaker magnet assembly, wherein the former is connected to a voice coil and a upper end...
US20150256046 Inhibiting Rocking of Loads Driven By Plural Levers  
An apparatus includes a load and a first armature. A first lever mechanically couples the first armature and the load. Motion of the first armature causes the first lever to pivot about a first...
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...
US20140133691 LOUDSPEAKER  
A loudspeaker has a short support post joined to the forward plate; upper end of the support post in association with the fixing post is joined to the middle part of the drum paper with the fixing...
US20080205687 Magnetic circuit for electrodynamic moving voice coil actuators  
The invention is a novel circuit wherein maximum shove is achieved yet the transducer's height profile is minimized. The profile is minimized by using mated beveled surfaces on an annular magnet...
US20130039515 SPEAKER COMPONENT, SPEAKER USING SAME, ELECTRONIC APPARATUS, AND MOVING MEANS  
Provided is a speaker diaphragm or a speaker voice coil bobbin manufactured by a papermaking method and including metal hydroxide by at least an amount of 30 wt % or greater. With this, it is...
US20130039528 LOUDSPEAKER STRUCTURE WITH INNER FRAME  
A loudspeaker includes an outer frame with an annular magnet partially exposed from a bottom thereof; a voice coil located inside the annular magnet; a diaphragm glued to between an expanded front...
US20130223670 SPEAKER WITH BUILT-IN FILTER FOR DIGITAL AMPLIFIER  
A speaker with a built-in filter used for a digital amplifier is provided. The speaker with the built-in filter includes an inductor wound on an outer circumferential surface of a pillar passing...
US20090202100 Voice coil and speaker  
A voice coil includes a cylindrical bobbin formed of a first material; a coil which surrounds on an outer circumferential surface of the bobbin; and a plurality of reinforcement members formed of...
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...
US20150181344 ELECTROACOUSTIC TRANSDUCER AND MANUFACTURING METHOD THEREOF  
An electroacoustic transducer comprises flexible strips and a shell, wherein the shell is formed of a first sub shell which is fixedly bonded to a second sub shell, the first sub shell is provided...
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...
US20110116677 DIAPHRAGM AND LOUDSPEAKER USING THE SAME  
A diaphragm includes a central portion and an edge portion around the central portion. The central portion includes a plurality of carbon nanotubes therein. The central portion is a carbon...
US20130329937 Micro-Speaker  
Disclosed is a micro-speaker. A micro-speaker includes a frame, a magnetic circuit unit accommodating in the frame, a vibrating unit, an assistant coil attached to the frame and disposed below the...
US20090136075 VIBRATION SPEAKER AND A PORTABLE ELECTRONIC DEVICE COMPRISING THE VIBRATION SPEAKER  
A vibration speaker for a portable electronic device is disclosed herein. The vibration speaker comprises a case. A loudspeaker member for generating a sound is contained in the case. The...
US20070172093 Copper foil wire for loudspeaker, and loudspeaker employing the loudspeaker copper foil wire  
A loudspeaker copper foil wire according to the present invention is excellent in flame resistance, moisture resistance, corrosion resistance, hopping resistance and soldering property, and...
US20050196011 Structure of rising part of coil  
An electric wire in a rising part, which is obtained by covering a conductor whose sectional shape is a square with an insulating film, is formed in a curve so that the inside of the curve is...
US20070223774 Coupled body of speaker apparatus  
A coupled body of a speaker apparatus having a frame and a vibration unit, the coupled body including a disk which is connected in its inner periphery on a side of the vibration unit and connected...
US20140270328 Driving Plural Armatures with a Common Stator  
An apparatus includes at least one load and a plurality of armatures, each including a permanent magnet, which are coupled to the at least one load to cause the at least one load to move. The...
US20050185816 Loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field  
A low frequency loudspeaker driver has a replaceable diaphragm assembly permitting a user to re-cone a blown woofer when in the field. In one embodiment, the peripheral edge of a loudspeaker...
US20110317868 ELECTROACOUSTIC TRANSDUCER  
A diaphragm has a back plane which has a voice coil attached thereto, and a front plane which is located on the side opposite to the back plane. The diaphragm also includes a center portion, a...
US20070140520 Diaphragm for speaker device, speaker device and mobile phone  
A diaphragm of a speaker device, formed into an elongated configuration, has a recessed shape and includes a voice coil arrangement part extending in its longitude direction. The voice coil...
US20140219494 FLAT TYPE SPEAKER COMBINING N MAGNET AND N+1 VOICE COIL PLATE  
The present invention relates to a flat-type speaker, and more particularly, to a flat-type speaker having one magnet for transferring vibration into a diaphragm and two voice coil plates in one...
US20090034751 ELECTRO-ACOUSTICAL TRANSDUCER  
An electro-acoustical transducer of the present invention includes: a diaphragm of an elongated shape; a first magnet of a parallelepiped shape which is situated at a side of one principal surface...
US20110150265 SPEAKER  
A speaker includes a magnetic circuit defining a magnetic gap, a diaphragm defining a central part and peripheral part surrounded the central part of the diaphragm, a coil defining an end...
US20060110001 Inertial voice type coil actuator systems  
The present invention includes a variety of magnetic circuit arrangements functioning as acoustic drivers. The circuits include a coil former around which is wrapped a conductive coil and a...
US20120148085 DIAPHRAGM AND SPEAKER DEVICE PROVIDED WITH THE SAME  
A diaphragm is provided with a plurality of thick portions radially from an inner circumferential side to an outer circumferential side. The thick portions are composed of at least two kinds...
US20060093179 Electro-acoustic audio transducer  
A dynamic transducer having a voice coil attached to and suspended between two diaphragms that comprise two opposite sides of an enclosure. The voice coil is suspended within the enclosure on a...
US20120008815 LOUDSPEAKER THAT IS AXIALLY STABILIZED OUT OF THE DIAPHRAGM SUSPENSION PLANE  
An improved mid to high-frequency loudspeaker of the type having a central dome diaphragm having an outer periphery, and in one embodiment an outer ring-radiator diaphragm portion defining an...
US20140247960 ELECTROMAGNETIC TRANSDUCER  
An electromagnetic transducer is disclosed. The electromagnetic transducer includes a frame, a diaphragm attached to the frame, a magnetic circuit part receiving in the frame with a magnetic gap,...
US20090290749 DYNAMIC ELECTRO-ACOUSTIC TRANSDUCER AND EARPHONE  
There is thus provided a dynamic electro-acoustic transducer having a moving coil (100) with a coil exit location (110) and a first and a second feed line (200, 300). The first and second feed...

Matches 1 - 50 out of 156 1 2 3 4 >