Entries |
Document | Title | Date |
20080205685 | Spider - A spider for high-power, compact electro-acoustic transducers comprises a non-woven fiber blend encased in a thermoplastic elastomer. The spider is capable of supporting the longer stroke distances of the high-power, compact electro-acoustic transducers and exhibits improved fatigue and ageing resistance. | 08-28-2008 |
20080205686 | Speaker unit and speaker apparatus - To propose a speaker unit and a speaker apparatus enabling to improve the strength of a voice coil bobbin and sound output in high quality with a simple structure, there are provided that a magnetic circuit forming a magnetic gap in slit form, a frame for storing and holding the magnetic circuit, a diaphragm attached to be vibratable to the frame, a flat-type voice coil bobbin disposed so as to pass through the almost center of the magnetic gap, in that its one end is combined with the diaphragm, a voice coil is adhered to its surface, and convex and concave parts for improving the strength of the diaphragm in the vibrating direction are formed on the surface, and a damper attached to the frame to support the other end of the flat-type voice coil bobbin. | 08-28-2008 |
20080212821 | Loudspeaker - A loudspeaker includes a frame, a magnetic circuit supported by the frame, voice coil body provided movably in relation to a magnetic gap provided at the magnetic circuit, a diaphragm having an outer rim being joined via a first edge to the frame and an inner rim being joined to the voice coil body, and a damper located towards the magnetic circuit from the diaphragm. The damper has an inner rim joined to the voice coil body. The damper has an outer rim joined via a second edge to the frame. The second edge protrudes towards the diaphragm or in a direction opposite to the diaphragm. The damper includes a first protrusion protruding towards the diaphragm and a second protrusion protruding in a direction opposite to a direction in which the first protrusion protrudes. A protrusion out of the first and second protrusions is closest to the second edge among the protrusions. A further projection out of the first and second protrusions is located more inside than the protrusion and protrudes in a direction opposite to a direction in which the second edge protrudes. The further protrusion has a size largest among sizes of other protrusion. This loudspeaker has a small distortion and a large driving efficiency. | 09-04-2008 |
20080212822 | LOUDSPEAKER SUSPENSION - Disclosed is a loudspeaker suspension structure having asymmetrical grooves. In an aspect, an apparatus includes a loudspeaker suspension structure having grooves, each extending from an inner circumferential border, to an outer circumferential border, at least one groove having a groove depth that varies asymmetrically from the inner circumferential border to the outer circumferential border. | 09-04-2008 |
20080232635 | Loudspeaker with an Acoustic Membrane - A loudspeaker ( | 09-25-2008 |
20080247595 | Electromagnetic lever diaphragm audio transducer - An electromagnetic transducer including a frame, a diaphragm disposed within the frame and coupled to the frame such that the diaphragm may rotate relative to the frame, a panel-shaped former connected to the diaphragm, a conductive coil connected to the former, and a magnetic assembly including a gap in which a magnetic field is provided. The gap is positioned to receive the conductive coil, and the conductive coil is electrically charged within the gap to move such that the diaphragm rotates about a rotational axis to generate sound waves. | 10-09-2008 |
20080279414 | Loudspeaker - A loudspeaker including a frame, a movable diaphragm that oscillates, and a suspension for mounting the diaphragm to the frame, where the suspension comprises a flexible surround having a substantially enclosed space where at least a portion of the flexible surround is air permeable. | 11-13-2008 |
20080298629 | Loudspeaker - A loudspeaker includes a basket defining a center hole therethrough, a conduction wire board fixed to the bottom surface of the basket, a magnet placed on the basket, a diaphragm arranged on the basket and above the magnet, and a voice coil. The conduction wire board defines a core hole corresponding to the center hole, and two welding foils on the bottom surface. The magnet defines a through hole corresponding to the center hole. The voice coil is wrapped around the magnet and fixed to the bottom of the diaphragm. The voice coil has leading wires, which bend inward at the top and downward pass through the through hole of the magnet, the center hole of the basket and the core hole of the conduction wire board, and then extend toward two sides of the rivet for being welded on the corresponding welding foils. | 12-04-2008 |
20080317275 | Speaker Damper and Speaker Using the Same - Speaker damper ( | 12-25-2008 |
20090022355 | LOUDSPEAKER - A high efficiency loudspeaker without a damper is provided. The loudspeaker includes magnetic circuit having a magnetic gap and a voice coil member, which has movable coil, disposed in the magnetic gap of the magnetic circuit. The loudspeaker also includes a diaphragm, whose inner peripheral part is linked with the voice coil member, outside the magnetic gap and a frame linked with an outer peripheral part of the diaphragm via a first edge. An inner peripheral part of a suspension holder is linked with the voice coil member at a linked position which is closer to the magnetic circuit than a linked position of the diaphragm and the voice coil member. An outer peripheral part of the suspension holder is linked with a frame via a second edge. The first edge and the second edge are substantially symmetrical with each other about a median of a first edge and a second edge. | 01-22-2009 |
20090041291 | SPEAKER DIAPHRAGM AND ELECTRODYNAMIC LOUDSPEAKER USING THE SAME - The present invention provides a loudspeaker diaphragm and an electrodynamic loudspeaker of an elongated shape being shorter in the minor-axis direction than in the major-axis direction, which have a desirable sound reproducing capability with a high efficiency and are not significantly influenced by divided vibrations of an elongated loudspeaker diaphragm, and which are suitably installed in devices such as display devices. In the elongated loudspeaker diaphragm: the diaphragm body includes a first diaphragm portion in a central portion of a rear surface thereof, the first diaphragm portion including a junction to a voice coil bobbin, a second diaphragm portion extending on each side of the first diaphragm portion in the major-axis direction, and a reinforcement rib extending continuously through the first diaphragm portion and the second diaphragm portions; and the edge includes a free edge portion for freely supporting opposite ends in the minor-axis direction of the first diaphragm portion and the second diaphragm portion, and a fixed edge portion being thicker than the free edge portion for fixedly supporting a distal end of each second diaphragm portion in the major-axis direction. | 02-12-2009 |
20090046888 | Speaker - A speaker, which includes a bracket holding a magnetic loop assembly on the bottom side and a voice coil at the top of the magnetic loop assembly, a diaphragm covering the voice coil and having a stepped peripheral flange, and a suspension bonded between the stepped peripheral flange of the diaphragm and the bracket in a concentric manner relative to the diaphragm for linear reciprocating motion with the diaphragm to improve the output sound. | 02-19-2009 |
20090052724 | LOUDSPEAKER - A magnetic circuit part of a loudspeaker is formed of a plate, a magnet, and a yoke. A step is disposed in the plate that comes into contact with a disc-like magnet and forms a magnetic gap. A loudspeaker is provided where the step moves a voice coil away from the leakage magnetic field of the yoke, the influence of the leakage magnetic field is eliminated even when the output is large, the distortion is small, and the sound quality is high. | 02-26-2009 |
20090060251 | LOUDSPEAKER DIAPHRAGM AND LOUDSPEAKER USING THE SAME - A loudspeaker diaphragm having a small overall height dimension, in which a dome portion has a sufficient rigidity and which is capable of realizing a stable loudspeaker operation, wherein the loudspeaker diaphragm can realize a desirable sound reproduction without noise, or the like, with a frequency response that is flat over a wide range. In the loudspeaker diaphragm of the present invention, the dome portion includes a concave dome portion formed at a center thereof, a convex dome portion along an outer periphery of the concave dome portion, a plurality of depressed ribs each extending in a radial direction across a boundary between the concave dome portion and the convex dome portion, a voice coil attachment portion along an outer periphery of the convex dome portion, and a plurality of protruding ribs extending in the radial direction across a boundary between the convex dome portion and the voice coil attachment portion, wherein each protruding rib is spaced apart in a circumferential direction from two adjacent depressed ribs. | 03-05-2009 |
20090074226 | PCB WITH EMBEDDED SPEAKER ASSEMBLY - A speaker system that includes a printed circuit board (PCB) and a speaker assembly. The speaker assembly is embedded in the PCB. The speaker assembly may include a coil, a magnet, and a diaphragm. The coil is embedded in a material of the PCB. The magnet is located within the PCB and attached to the diaphragm. The coil is usable as a T-coil for hearing aid compatibility. The speaker system may be included in any device such as a mobile phone, a personal digital assistant (PDA), a computer, an electronic game device, an electronic audio device, or an electronic video device. | 03-19-2009 |
20090080685 | SPEAKER - A speaker having smaller distortion and driven at higher efficiency is disclosed. The speaker includes a frame, a magnetic circuit supported by the frame, a voice coil unit placed movable with respect to magnetic gap provided to the magnetic circuit, a diaphragm of which outer rim is coupled to the frame via a first edge, and of which inner rim is coupled to the voice coil unit, and a damper placed on the magnetic circuit side with respect to the diaphragm, and which damper has an outer rim coupled to the frame and an inner rim coupled to the voice coil unit. The outer rim of the damper is coupled to the frame via a second edge, which includes a first protrusion protruding toward the diaphragm and a second protrusion protruding oppositely to the first protrusion. | 03-26-2009 |
20090080686 | LOUDSPEAKER - A loudspeaker includes a frame; a magnetic circuits supported by the frame; a voice coil disposed in a magnetic gap of the magnetic circuit so as to be able to vibrate freely in the gap; a diaphragms connected to the frame at the outer rim thereof via a first edge and connected to the voice coil at the inner rim thereof; a damper connected to the voice coil at the inner rim thereof, the damper being closer to the magnetic circuit than the diaphragm is close to the magnetic circuit; and a second edge connecting the outer rim of the damper to the frame. The second edge has a protrusion protruding either toward the diaphragm or in the opposite direction. The second edge is coupled to a third edge having a protrusion protruding at least in the opposite direction in which the protrusion of the second edge protrudes. This structure enables the loudspeaker to have little distortion and high driving efficiency. | 03-26-2009 |
20090190791 | Acoustic transducer comprising a plurality of coaxially arranged diaphragms - An acoustic transducer comprises one or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. The diaphragms may be driven directly, inertially or fluidically. If diaphragms are driven by rods that pass through holes in the diaphragms, noise may be generated by air that leaks through the pass-through holes. This noise may be reduced or eliminated by measures that reduce or eliminate the air leakage. | 07-30-2009 |
20090190792 | Dampening Mechanism for a Micro Speaker - A speaker comprises a diaphragm, a drive assembly for producing movement of said diaphragm responsive to an applied electrical signal to generate audible sounds, and at least one mechanical dampener applied to a surface of the speaker to dissipate energy when the dampener is impacted by said diaphragm. | 07-30-2009 |
20090190793 | SPEAKER DEVICE - A voice coil | 07-30-2009 |
20090252368 | Ribbon transducer with improved dispersion, excursion and distortion characteristics - A ribbon-type electroacoustic transducer such that the acoustic dispersion in the window roughly parallel to the transducers' diaphragm surface is superior to the dispersion of other similar ribbon-type electroacoustic transducers is described. In addition, methods of improving the symmetry of the magnetic field within the motor of the electroacoustic transducer are described. In addition, methods of employing flexible suspension elements attached to a ribbon-type electroacoustic transducer diaphragm such that a shape is created in the diaphragm by the compliance of the flexible suspension elements roughly approximating a smooth curve similar to the smoothly curved diaphragm as described above is described. | 10-08-2009 |
20090262971 | Speaker - An uncured fluid adhesive is charged into a groove surrounding the outer circumference of a voice coil so that the inner circumferential edge of a diaphragm is immersed in the adhesive. The cured adhesive securely bonds the diaphragm to the voice coil, and thus the diaphragm can be driven at high output. | 10-22-2009 |
20090290748 | Moving-Coil Planar Speaker - The planar speaker contains a frame, a diaphragm, a driver, a surround, and a number of flexible suspension elements. The diaphragm is suspended in a front opening of the frame by the surround. The driver is positioned at the center of the frame and a voice coil of the driver is attached to a back surface of the diaphragm. Two beams are arranged in parallel between two opposing longer wall segments of the frame on either side of the driver. The suspension elements are supported by the two beams, respectively, and attached to a back surface of the diaphragm. The symmetric deformation of the diaphragm along its longer side is thereby constrained by the suspension elements and the deformations at the two end zones of the diaphragm vibrating at a phase opposite to that of the center of the diaphragm would be suppressed. | 11-26-2009 |
20090316948 | SPEAKER DEVICE - A drive cone | 12-24-2009 |
20100002901 | SPEAKER - A speaker having improved sound quality by reducing a phase difference and also having an outstanding outward appearance is provided. In a speaker comprising a vibrating element | 01-07-2010 |
20100014702 | Resonating Cone Transducer - An electroacoustical transducer includes a bobbin, a first acoustic radiator coupled to the bobbin through a first surround having a mechanical compliance, a second acoustic radiator generally rigidly coupled to the bobbin, and a basket. The first acoustic radiator is coupled to the basket through a second surround, and the second acoustic radiator is coupled to the basket through a third surround. The first surround is constructed to cause the first acoustic radiator to move out of phase with the second acoustic radiator relative to the bobbin when actuated by the bobbin at acoustic frequencies at and above a resonant frequency of the first acoustic radiator. | 01-21-2010 |
20100014703 | Loudspeaker - A loudspeaker according to the present invention includes a frame body, a leading wire board disposed underneath the frame body, a magnet mounted in the frame body, a pad ring glued on an edge of the frame body, a diaphragm whose exterior rim is glued on the pad ring and a voice coil assembled in the frame body and surrounding the magnet. A top of the voice coil is adhered to a bottom of the diaphragm and two free ends of the voice coil are soldered to the leading wire board. The pad ring is made of plastic material. | 01-21-2010 |
20100128917 | LOUDSPEAKER - A speaker comprising a first rod magnet having a longitudinal direction, a second rod magnet having a longitudinal direction parallel with the longitudinal direction of the first rod magnet, a third rod magnet forming a second magnetic gap between it and the first rod magnet, a diaphragm vibrating in the vibrating direction, a housing for storing the first rod magnet, the second rod magnet, the third rod magnet and the diaphragm, and voice coils bonded to the diaphragm and arranged in first and second magnetic gaps. The second rod magnet has a longitudinal direction parallel with the longitudinal direction of the first rod magnet, and has the opposite end faces in the longitudinal direction. The third rod magnet has a longitudinal direction parallel with the longitudinal direction of the first rod magnet, and has the opposite end faces in the longitudinal direction. The diaphragm is located between the first and second rod magnets and between the first and third rod magnets. The housing forms a first space surrounded by one of the opposite end faces of the second rod magnet and one of the opposite end faces of the third rod magnet, and forms a second space surrounded by the other of the opposite end faces of the second rod magnet and the other of the opposite end faces of the third rod magnet. The housing is composed of a nonmagnetic body and supports the outer circumference of the diaphragm. First and second sound radiating holes respectively facing the first and second spaces are formed in the housing. This speaker is thin and can deliver big sound. | 05-27-2010 |
20100135519 | LOUDSPEAKER MADE FROM FILMS - The invention relates to a loudspeaker designed with a large area having sandwich-like layer structure, consisting of a plurality of conductive and nonconductive layers which form an active sound-radiating loudspeaker surface, having:
| 06-03-2010 |
20100158306 | DIAPHRAGM UNIT AND SPEAKER USING THE SAME - A diaphragm unit is arranged to be used in a loudspeaker including a frame. The diaphragm includes a diaphragm and an edge joined to an outer periphery of the diaphragm. The diaphragm extends in a longitudinal direction and has a first center line extends along the longitudinal direction. The edge has an outer periphery being arranged to join to the frame, and an inner periphery joined to the outer periphery of the diaphragm. The edge has a convex surface having substantially a semi-circular cross section. The convex surface of the edge has grooves provided therein. The grooves extend from the inner periphery of the edge to the outer periphery of the edge. The grooves have cross sections each having a U-shape or a V-shape, and are arranged symmetrically about the first center line of the diaphragm. This diaphragm unit provides an elongated loudspeaker reproducing bass sounds with small distortions. | 06-24-2010 |
20100172533 | DIAPHRAGM FOR SPEAKER, SPEAKER USING THE DIAPHRAGM, AND SYSTEM USING THE SPEAKER - A loudspeaker diaphragm contains polylactic acid, and bamboo charcoal mixed in the polylactic acid. The diaphragm does not affect environment and provides a loudspeaker with high sound quality. | 07-08-2010 |
20100177925 | Speaker Device - A speaker device includes a diaphragm having an inner rim connected to a voice coil bobbin and an outer rim connected to a frame through an edge, wherein the diaphragm is shaped so that a peak portion is formed with an acute angle folded back between the inner rim and the outer rim which are positioned at an acoustic radiation side in comparison with the peak portion. The cross-sectional shape of the diaphragm extending from the peak portion to the inner rim is formed with a convex shape toward an acoustic radiation side, and also that of the diaphragm extending from the peak portion to the outer rim is formed with substantially straight shape or convex shape toward the acoustic radiation side. The speaker device lower in profile allows high-quality sound to be reproduced, in particular, the high range of frequency characteristic of the sound pressure to be improved. | 07-15-2010 |
20100183187 | LOUDSPEAKER WITH A STIFFENING ELEMENT - The present invention provides: a loudspeaker including a frame, a drive unit, and a membrane;
| 07-22-2010 |
20100195862 | TRANSDUCER WITH DEFORMABLE CORNER - A transducer generates acoustic energy. The transducer is suitable for incorporation into any device that needs sound reproduction capability, including devices with generally rectangular geometries such as cell phones, PDAs, and portable gaming devices. The transducer includes a displaceable membrane with a deformable corner. The deformable corner may extend the frequency range over which the transducer generates acoustic energy without distortion. The deformable corner may be part of a membrane periphery around the displaceable membrane. The membrane periphery may be square, triangular, or may take any other polygonal shape. | 08-05-2010 |
20100208934 | SPEAKER DEVICE - Objects are to make a speaker device smaller than heretofore in size, in profile, and in weight, and to reproduce sound in high quality. The speaker device includes: a diaphragm which has an inner rim connected to a voice coil bobbin and an outer rim connected to a frame through an edge, and is shaped so that a peak portion is formed between the inner rim and the outer rim, which are positioned at an acoustic radiation side in comparison with the peak portion; and an inner magnet type magnetic circuit for driving a voice coil which is arranged on the voice coil bobbin connected to the inner rim of the diaphragm. | 08-19-2010 |
20100278371 | ELECTROACOUSTIC TRANSDUCER - The invention provides an electroacoustic transducer capable of efficiently carrying out conversion from electric signals to sound or from sound to electric signals at low distortion, which requires no special shape nor processing as a magnet, requires no minute setting of the magnetization direction, and sets a distribution of higher magnetic flux densities for effective action with respect to an electric conductor of an acoustic diaphragm than in a magnet plate magnetized in the radius direction although the production process thereof is remarkably simple as in a magnet plate magnetized in the radius direction. | 11-04-2010 |
20100284560 | AUDIO TRANSDUCER - An audio transducer for use in a loudspeaker system. The transducer includes a pair of flexible, curved diaphragms, with each diaphragm having a distal end and a proximal end. The curved diaphragms form hemi-cylindrical lobes being substantially tangent to one another at their proximal ends and are attached to energy absorbent dampers at their distal ends. The transducers can be employed in a line array as part of the loudspeaker system as well as some of the transducers facing forward while others rearward and, in doing so, their amplitudes and phases can be adjusted for fine tailoring the geometric coverage of acoustic energy radiating from the loudspeaker system. | 11-11-2010 |
20100296687 | Diaphragm and Speaker - The present invention provides a dome diaphragm having high strength wholly and uniformly while maintaining a small thickness of a dome portion. A diaphragm | 11-25-2010 |
20100296688 | SPEAKER DIAPHRAGM, SPEAKER USING SAID DIAPHRAGM, AND SPEAKER DIAPHRAGM MANUFACTURING METHOD - A speaker diaphragm includes a fabric layer in which impregnated thermosetting resin is thermally cured, and a paper layer integrated on a rear face of this fabric layer. Fluffs of the paper layer filling stitches of the fabric layer are entangled with threads of the fabric layer from a surface of the fabric layer, and are firmly fixed by thermosetting resin. This integrates the layers in the state that the paper layer is filled in the stitches of the fabric layer. Accordingly, internal loss and Young's modulus of the speaker diaphragm can be increased. As a result, the speaker sound quality can be improved. | 11-25-2010 |
20100303278 | Low profile audio speaker with minimization of voice coil wobble, protection and cooling - A low profile speaker that is designed to substantially eliminate wobble of the bobbin and voice coil during operation with two different electromagnetic motor designs. In each design there is an added feature to of a downward extension of the outer edge of the cone that bottoms out on the bottom surface of the frame before the bottom edge of the bobbin strikes the bottom of the air gap thus preventing damage to the bobbin and voice coil when the voice coil is overdriven downward. Additionally, there are two different bobbin and voice coil cooling feature for use with electromagnetic motors that utilize a Tyoke construction. | 12-02-2010 |
20100322458 | SPEAKER AND ELECTRONIC DEVICE - A speaker according to the present invention includes: a diaphragm formed as an elongated box-shaped five face body having one open face; an edge for supporting the diaphragm so as to enable vibration of the diaphragm; a voice coil wound around and fixed to four side faces which are among five faces of the diaphragm and which are adjacent to the open face; and a magnetic circuit for supplying a drive force to the voice coil, and the diaphragm is configured such that a height from the open face to an upper face opposed to the open face is greater than or equal to twice a thickness of the voice coil, and a length of a long side of the upper face is greater than or equal to twice a length of a short side of the upper face, and the upper face and two side faces of the diaphragm define a long side direction of the diaphragm, and a plurality of reinforcing ribs are formed as recessed and projecting shapes on the upper face and the two side faces of the diaphragm. | 12-23-2010 |
20110007931 | SPEAKER DIAPHRAGM, SPEAKER, AND METHOD FOR MANUFACTURING SPEAKER DIAPHRAGM - A speaker diaphragm of the present invention is molded by paper-making molding, using not smaller than 5 wt % of fibers extracted from at least bamboo leaves. It is thereby possible to improve the rigidity of the speaker diaphragm, so as to realize a speaker diaphragm with low environmental load, reducible cost and high sound quality. | 01-13-2011 |
20110026758 | DIAPHRAGM AND LOUDSPEAKER USING THE SAME - A diaphragm includes a membrane and at least one reinforcing structure stacked on the membrane. The at least one reinforcing structure includes at least one free-standing carbon nanotube structure. The at least one free-standing carbon nanotube structure includes a net structure of a plurality of carbon nanotubes combined to each other due to the van der Waals attractive force. A loudspeaker using the diaphragm is also disclosed. | 02-03-2011 |
20110044490 | Edge for Speaker - An edge is provided between an outer peripheral part of a diaphragm and a frame. The edge includes a concave part which is formed along the outer peripheral part of the diaphragm and which includes a recess. The concave part is comprised of a first material. A second material is filled in a part of the recess and has lower density than the first material. | 02-24-2011 |
20110064259 | DAMPER AND LOUDSPEAKER USING THE SAME - A damper includes at least one matrix and at least one carbon nanotube structure disposed on at least one surface of the at least one matrix. A loudspeaker using the damper is also disclosed. The loudspeaker includes a frame, a diaphragm secured on the frame, a bobbin having a voice coil, and a damper. The bobbin is secured to the diaphragm. The damper has a first engaging surface engaged with the frame and a second engaging surface engaged with the bobbin. | 03-17-2011 |
20110075879 | PIEZOELECTRIC MICRO SPEAKER WITH CURVED LEAD WIRES AND METHOD OF MANUFACTURING THE SAME - A micro speaker includes a substrate having a cavity formed therein, a diaphragm formed on the substrate overlapping the cavity. The diaphragm includes a first vibration membrane formed in a first area corresponding to a center portion of the cavity and a second vibration membrane formed in a second area corresponding to an edge portion of the cavity and formed of material different from that used for the first vibration membrane. A piezoelectric actuator is formed including a first electrode layer formed on the first vibration membrane, a piezoelectric layer formed on the first electrode layer, and a second electrode layer formed on the piezoelectric layer, and first and second curved lead wires, respectively connected to the first and second electrode layers across the second area, which are symmetrical to the center of the piezoelectric actuator. | 03-31-2011 |
20110096953 | DAMPER AND LOUDSPEAKER USING THE SAME CROSS-REFERENCE TO RELATED APPLICATIONS - A damper has ridges and furrows thereon and a through hole therein. The damper includes a carbon nanotube film structure and an amorphous carbon structure. The carbon nanotube film structure defines a number of micropores therein. The amorphous carbon structure is composited with the carbon nanotube structure. The amorphous carbon structure comprises a number of amorphous carbon particles received in the micropores. | 04-28-2011 |
20110135138 | LOUD SPEAKER, LOUD SPEAKER MANUFACTURING METHOD, AND LOUD SPEAKER MANUFACTURING JIG - In a loud speaker, the diaphragm has a protruded part protruding on a yoke side on the inside and in the vicinity of an inner coupling part as a coupled portion to a voice coil. The loud speaker can be manufactured with the voice coil accurately positioned with respect to a diaphragm, and the voice coil is accurately vibrated vertically inside a magnetic gap. The possibility of the voice coil coming into contact with a plate and a yoke as a magnetic circuit body of the loud speaker can be reduced, thereby to improve production efficiency and a yield at the time of manufacturing the loud speaker. | 06-09-2011 |
20110150264 | SPEAKER MAGNETIC CIRCUIT, SPEAKER DEVICE, AND METHOD OF MANUFACTURING SPEAKER MAGNETIC CIRCUIT - The present invention is to provide a speaker magnetic circuit which, even if small in its thickness, can reduce an occurrence of magnetic flux leakage so as to obtain a sufficient magnetic flux density in a magnetic gap, particularly in a position where a voice coil is supported. The speaker magnetic circuit ( | 06-23-2011 |
20110158458 | Electroacoustic transducer - In an electroacoustic transducer, abnormal resonance caused by end reflected waves in the bonding portion of a diaphragm and a unit frame is prevented. The electroacoustic transducer includes the diaphragm having a center dome and a sub dome, and a unit frame | 06-30-2011 |
20110164780 | SENSORY SIGNAL OUTPUT APPARATUS - The present invention provides a sensory signal output apparatus wherein a coil is disposed in the gap between a magnet/top plate and a yoke, and a portion elastically supported in the free space vibrates in reaction to the magnetic flux generated in the gap in accordance with the direction of the alternating current signal applied to the coil to generate sound and/or vibration, wherein the yoke has a groove formed at a side other than that with the magnet, and the groove has a diameter smaller than that of the magnet, and an inner edge portion with a magnetic fluid. The sensory signal output apparatus of the present invention improves the position retaining force of the magnetic fluid and reduces the deformation of the magnetic fluid, as the magnetic fluid is formed in the edge of the groove of the yoke corresponding to the edge portion of the magnet which has a relatively bigger magnetic force and magnetic field than the plane portion of the magnet. Further, as the magnetic fluid is formed in the edge of the groove such that the magnetic fluid is present at both sides (the horizontal side and the vertical side) extending from the edge, the magnetic fluid at the horizontal side serves to relieve impact caused by a collision against peripheral elements during vibration, and the magnetic fluid at the vertical side corrects center deviation during vibration. | 07-07-2011 |
20110164781 | MAGNETIC CIRCUIT FOR SPEAKER DEVICE AND SPEAKER DEVICE - A speaker device includes a diaphragm ( | 07-07-2011 |
20110188698 | ELECTRODYNAMIC TRANSDUCER, IN PARTICULAR OF THE LOUDSPEAKER TYPE WITH FERROFLUID SUSPENSION AND RELATED DEVICES - An electrodynamic transducer with a membrane includes an electrodynamic motor in a carcass in which a coil held by a mandrel connected to the membrane is capable of movement. The mandrel has a shape generated by an essentially linear generatrix, the coil being arranged in an air gap of a vertical free space where it is capable of movement and defined, towards the centre of the transducer, by an inner magnetic structure and, towards the periphery of the transducer, by an outer magnetic structure, at least one of the magnetic structures generating a static magnetic field, wherein the transducer does not include any peripheral nor inner suspension and the guiding of the mobile equipment and the pneumatic tightness between the front and rear faces of the membrane being ensured by a ferrofluid. The mandrel is maintained in the air gap by the ferrofluid applied on at least one of the two faces of the mandrel and entirely filling the air gap. | 08-04-2011 |
20110194724 | VIBRATING BODY FOR ACOUSTIC TRANSDUCER AND SPEAKER DEVICE - A vibrating body for an acoustic transducer is provided, in which the high resonance frequency associated with inverse resonance can be outside the audible range and which can improve the acoustic characteristic of a speaker device. The vibrating body | 08-11-2011 |
20110228968 | LOUDSPEAKER DEVICE WITH SOUND ENHANCING STRUCTURE - A loudspeaker device comprising: a loudspeaker and a reflecting member positioned opposite to the loudspeaker, the loudspeaker comprising an electromagnet actuator, a dish-like frame and a vibrating drum, the electromagnetic actuator being attached on one side of the frame, the vibrating drum adhered to an inner side of the dish-like frame, the electromagnetic actuator being configured for driving the vibrating drum to vibrate, the vibrating drum being configured for generating sound of different frequencies and intensities; and the reflecting member shaped in a bowl configuration, comprising a concave shaped reflecting surface opposite to the vibrating drum; wherein the area of the reflecting surface is larger than an area of the vibrating drum. | 09-22-2011 |
20110243365 | Moving Magnet Levered Loudspeaker - A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced. | 10-06-2011 |
20110243366 | Loudspeaker Moment and Torque Balancing - A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced. | 10-06-2011 |
20110243367 | 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 member having one side fixed to the frame and having a predetermined elasticity; a yoke fixed to the first member and comprising a receiving groove; a first permanent magnet fixed to a bottom surface of the receiving groove; a plate fixed to an upper surface of the first permanent magnet; a second member having one side fixed to the frame, spaced apart from the first member in a downwards direction and having a predetermined elasticity; and a second magnet fixed to the second member and spaced apart from the first member and the yoke. | 10-06-2011 |
20110243368 | MULTIFUNCTIONAL MICRO SPEAKER - A multifunctional micro speaker including a frame including a lower plate portion and a lateral wall portion; a diaphragm having an outer circumferential portion that is fixed to the lateral wall portion of the frame; a voice coil fixed to a lower surface of the diaphragm; a suspension including a central portion and a supporting portion, wherein the central portion has a lower surface that is closely fixed to a lower plate member disposed in a lower portion of the frame, and the supporting portion extends from at least a portion of an outer circumferential portion of the central portion and is bent; a yoke fixed to the supporting portion of the suspension; a permanent magnet fixed to a bottom surface of the yoke; and a plate fixed to an upper surface of the permanent magnet. | 10-06-2011 |
20110249858 | 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 suspension having one side fixed to the frame and having a predetermined elasticity; a yoke fixed to the first suspension and including a receiving groove; a first permanent magnet fixed to a bottom surface of the receiving groove; a plate fixed to an upper surface of the first permanent magnet; a second suspension having one side fixed to the frame, spaced apart from the first suspension in a downwards direction, and having a predetermined elasticity; and a second magnet fixed to the second suspension and spaced apart from the first suspension, wherein the first suspension and the second suspension have a plate shape, wherein at least one lateral surface of the first suspension is magnetized by the first permanent magnet, and wherein at least one lateral surface of the second suspension is magnetized by the second magnet. | 10-13-2011 |
20110255733 | SPEAKER UNIT AND PORTABLE INFORMATION TERMINAL - [Problem] To provide a speaker unit and a portable information terminal that are reduced in size and thickness and still produce a high sound pressure. | 10-20-2011 |
20110255734 | SPEAKER UNIT AND PORTABLE INFORMATION TERMINAL - To provide a speaker unit and a portable information terminal that are reduced in size and thickness and still produce a high sound pressure. A speaker unit includes: a yoke having a rectangular outline as seen in a plan view; a magnet member placed on the yoke and magnetized so that an upper surface of the magnet member has an N pole and an S pole aligned in one direction; a coil placed above and spaced from the upper surface of the magnet member; a diaphragm attached to the coil; and a frame supporting the diaphragm. An engagement protrusion which allows the frame and the yoke to engage with each other is provided on a side which is one of the sides defining the rectangular outline of the yoke and extends along the one direction. | 10-20-2011 |
20110261990 | SPEAKER UNIT, MANUFACTURING METHOD THEREOF, AND PORTABLE INFORMATION TERMINAL - A frame includes terminals. A diaphragm is supported by a frame so as to vibrate in one direction. A magnet is fixed to frame. A voice coil includes a winding portion and wire portions. Winding portion is fixed to diaphragm so as to receive a magnetic field from magnet. Wire portions and serve to electrically connect wiring portion and terminals, respectively. Wire portions have bending portions bent in one direction from winding portion towards terminals. | 10-27-2011 |
20110268310 | LOUDSPEAKER WITH AN INVERTED MOTOR - A loudspeaker includes a chassis, a diaphragm, a motor system, a first suspension and a second suspension. The chassis has an inner periphery and an outer periphery. The diaphragm has an inner periphery and an outer periphery. The motor system has a magnet assembly connected to the inner periphery of the chassis, and a voice coil assembly connected to the diaphragm. The first suspension has an inner periphery connected to the outer periphery of the diaphragm, and an outer periphery connected to the outer periphery of the chassis. The second suspension has an inner periphery connected to at least one of the magnet assembly and the inner periphery of the chassis, and an outer periphery connected to the diaphragm between the inner and outer periphery. | 11-03-2011 |
20110274308 | MULTIFUNCTIONAL MICRO SPEAKER - A multifunctional micro speaker including a frame; a diaphragm having an outer circumference portion fixed to the frame; a voice coil fixed to a lower surface of the diaphragm; a suspension fixed to the frame and having a predetermined elasticity; a yoke fixed to the suspension and including a receiving groove having a concave shape; a permanent magnet fixed to a bottom surface of the receiving groove; and a plate fixed to an upper surface of the permanent magnet, wherein a through hole is vertically formed through a central portion of a magnetic circuit including the yoke, the permanent magnet and the plate. The multifunctional micro speaker includes the through hole formed in a magnetic circuit, and thus, a vibration displacement of the magnetic circuit and a damping coefficient of the diaphragm may be controlled. | 11-10-2011 |
20110274309 | MICRO SPEAKER - A micro speaker including a frame; a yoke fixed to the frame and including a receiving groove; a permanent magnet spaced apart from an inner lateral wall of the receiving groove of the yoke, and fixed to a bottom surface of the yoke; a plate fixed to an upper surface of the permanent magnet, spaced apart from the inner lateral wall of the receiving groove of the yoke, and fixed to the yoke; a diaphragm having an outer circumferential portion fixed to the frame; a base film fixed to a lower surface of the diaphragm and including a first coil that has a planar shape and is printed to have a coil pattern; and a second coil that is formed by winding a wire, has an upper end portion fixed to a lower surface of the base film, extends downwards from the upper end portion, and is electrically connected to the first coil. | 11-10-2011 |
20110293132 | ELECTROACOUSTIC TRANSDUCER - A frame has a notch having an opening at a side plane of the frame. A diaphragm is vibratably attached to one plane of the frame. A voice coil is attached to the diaphragm. A terminal is attached to the other plane of the frame. A lead is connected to the voice coil, drawn from one plane to the other plane through the notch, and connected to the terminal. One of intersection points at which a normal to the side plane that passes through the position of the lead in the notch and the side plane intersect that is closest to the opening and the lead in the notch are intervened therebetween by the frame. | 12-01-2011 |
20110299716 | FLAT DIAPHRAGM LOUDSPEAKER - The invention relates to a loudspeaker system in which the diaphragm of the speaker has a defined material thickness particularly in the edge region thereof and comprises a suspension which is axially symmetrical about the mechanical rest position of said diaphragm and is formed by one, preferably two identical mirrored components, characterized in that the sound emission towards the rear is performed to at least 50 percent by the inner space of a magnetic system. The invention further relates to the use of the loudspeaker system as loudspeaker boxes or in radios, television screens, radio receivers, hand-held radio devices, measurement receivers, mobile telephones and headphones or the like. | 12-08-2011 |
20110311090 | ACOUSTIC CONVERSION DEVICE - An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame in a state covering the opening of the holding frame, a diaphragm held on the inner side of the holding frame in a state adhered to the resin film, and a beam portion of which the tip portion formed integrally with the diaphragm is combined with the vibrating portion of the armature, for propagating the vibration of the vibrating portion to the diaphragm. | 12-22-2011 |
20110311091 | ACOUSTIC CONVERSION DEVICE - An acoustic conversion device includes: a driving unit including a pair of magnets, a yoke, a coil, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion being passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame, a diaphragm held within the holding frame, and a beam portion for propagating the vibration of the vibrating portion to the diaphragm; with the beam portion being combined with one edge side of the diaphragm, a predetermined gap being formed between the other edge of the diaphragm, and the inner face of the holding frame, a reinforcing member being provided to the predetermined gap, and the diaphragm being combined with the holding frame by the resin film and the reinforcing member. | 12-22-2011 |
20110311092 | SPEAKER UNIT AND PORTABLE INFORMATION TERMINAL - A speaker unit adaptable to limited mounting space, allowing reduction in the lowest resonance frequency, and realizing higher sound pressure and smaller distortion is provided. A diaphragm includes a trunk portion | 12-22-2011 |
20110317867 | SPEAKER UNIT AND PORTABLE INFORMATION TERMINAL - To provide a speaker unit and a portable information terminal suppressing a decrease in a vibration area and a reduction in a diaphragm edge portion path length caused along with miniaturization and slimming-down. A speaker unit includes a diaphragm member which has a first convex portion at an outer peripheral portion, a voice coil fixed to the diaphragm member, a magnet disposed to be spaced from the voice coil, and a frame which supports the magnet and has a second convex portion on a more inner peripheral side than the first convex portion. The diaphragm member is attached to the frame such that an inner peripheral surface of the first convex portion faces an outer peripheral surface of the second convex portion. | 12-29-2011 |
20120002836 | LOUDSPEAKER - A loudspeaker includes a movable diaphragm, a resilient centering device for centering and guiding the movement of the diaphragm, and a magnet system for controlling the movement of the diaphragm, where the diaphragm is positioned between the magnet system and the resilient centering device. | 01-05-2012 |
20120106772 | SPEAKER DEVICE - A diaphragm, a static part vibratably supporting the diaphragm in the vibration direction, and a driving part provided at the static part and applying vibration to the diaphragm in response to an audio signal are provided, and the driving part includes a magnetic circuit forming a magnetic gap, a voice coil vibrating in a different direction from the vibration direction of said diaphragm in response to an inputted audio signal and a rigid vibration direction converter part direction-converting the vibration of the voice coil and transmitting the vibration to the diaphragm, and the vibration direction converter part is connected to an attaching counterpart including the diaphragm and the voice coil and includes a hinge part in the proximity of the attaching counterpart, and a contact avoiding part avoiding contact with the hinge part is formed on the face side of the attaching counterpart in the proximity of the hinge part. | 05-03-2012 |
20120114164 | Improvements In Or Relating To Surrounds For Audio Drivers - A ring-shaped surround for a loudspeaker is disclosed, in the form of a membrane formed in a shape that, when relaxed (i.e. when not being driven), has a cross sectional shape with a first portion extending in a radial direction for a first distance, a second portion extending in an axial direction for a second distance, and a third portion extending in a radial direction for a third distance, the first and second portions being connected by a first flexible join, and the second and third portions being connected by a second flexible join, the first join having a first radius of curvature that is shorter than at least one of said first and second distances, the second join having a second radius of curvature that is shorter than at least one of said second and third distances. Thus, the surround has a Z-shape, with a first radially extending portion, and a relatively sharp bend leading to an axially-extending portion. The radially outwardly extending portion can have a surface which undulates around its circumference, to provide a stiffening effect to the otherwise planar surface and inhibit resonances. One or more tabs can be provided, extending from a surface of the second portion, in a direction transverse to the local orientation of the second portion. These will adjust the dynamic properties of the surround as required. Typically, the surround will be circular, to fit around a circular driver. However, other shapes are possible. | 05-10-2012 |
20120177245 | MULTI-MAGNETIC SPEAKER - A multi-magnet speaker is disclosed. The multi-magnet speaker includes a frame defining a hollow space, a magnetic system defining a yoke and a plurality of magnetic gaps positioned in the hollow space, a diaphragm mounted on the frame and a plurality of coils attached to the bottom of the diaphragm. The diaphragm includes a plurality of vibrating membranes each defining a dome part and an arcuate portion radially extending from the periphery of the dome part. Each of the coils is received in the corresponding magnetic gap to drive the corresponding vibrating membrane to vibrate. | 07-12-2012 |
20120177246 | MULTI-MAGNET SYSTEM AND SPEAKER USING SAME - Disclosed is a multi-magnet system for speaker. The multi-magnet system includes a yoke having a bottom, a pair of main magnets separated from each other and mounted on the bottom of the yoke, respectively, a mid-magnet mounted on the bottom of the yoke and located between the pair of main magnets, and a pair of auxiliary magnets attached to two ends of the yoke. Wherein, the first main magnet together with the first auxiliary magnet and the mid-magnet defines a first magnetic gap and the second main magnet together with the second auxiliary magnet and the mid-magnet defines a second magnetic gap. By virtue of place the magnets at appropriate locations, the sensitivity of the speaker is effectively enhanced. | 07-12-2012 |
20120183171 | SPEAKER SURROUND STRUCTURE FOR MAXIMIZING CONE DIAMETER - A surround that is generally arched in shape and that includes a radial exterior flange that extends downward from exterior side of the arched portion of the surround and that adhesively attaches to the inner wall or edge of the mounting ring of the frame of the loudspeaker. | 07-19-2012 |
20120195457 | SLIMLINE SPEAKER - A slimline speaker comprises: a magnetic circuit having a magnet and yoke disposed to form a separating space in the horizontal direction; a bobbin on which a voice coil is mounted and of which the lower side is inserted in the separating space between the magnet and yoke; a base frame for mounting the magnetic circuit; a damper having an inside edge coupled to the bobbin and an outside edge coupled to the base frame; and a diaphragm having an inside edge coupled to a point lower down than the point where the damper is coupled on the bobbin, and an outside edge coupled to the base frame. | 08-02-2012 |
20120257781 | SPEAKER DIAPHRAGM, SPEAKER DUST CAP, SPEAKER FRAME, SPEAKER USING SAID PARTS, AND ELECTRONIC EQUIPMENT AND DEVICE USING SAID SPEAKER - Each of a speaker diaphragm, a dust cap, and a frame includes a resin and a plant opal that is extracted from a bamboo leaf, and is formed by injection molding or sheet molding. The configuration can enhance stiffness of each of the diaphragm, the dust cap, and the frame and implement high performance. | 10-11-2012 |
20120263337 | Speaker Diaphragm And Speaker Device - The present invention further reduces a weight with an internal loss being large without reducing high rigidity and an environment resistance, thereby enabling a maximum sound pressure to be increased. | 10-18-2012 |
20120263338 | COMPOSITE SPEAKER - A composite speaker is provided capable of obtaining larger sound output than that of a conventional flat panel speaker and flat speaker when input with an audio signal of the same strength. The composite speaker includes: one magnet or a plurality of magnets disposed at predetermined intervals to each other; a yoke for forming a magnetic circuit with a magnetic gap to the magnets; a voice coil disposed in a gap between the magnets and the yoke so as to interlink with the magnetic circuit; a diaphragm with the voice coil fixed to one face thereof; a frame that supports the diaphragm at peripheral edge portions of the diaphragm and houses the magnets and the yoke; a speaker base plate fixed to the frame at the side of the frame supporting the diaphragm or at the side of the frame opposite to the side supporting the diaphragm; and a phase rotation member configured by an elastic member provided between the speaker base plate and the yoke; wherein sound is generated from both the diaphragm and the speaker base plate. | 10-18-2012 |
20120269379 | DIAPHRAGM USED IN A LOUDSPEAKER AND A LOUDSPEAKER - A diaphragm and a loudspeaker using the diaphragm are disclosed. The diaphragm has a diaphragm body with at least one projection formed thereon, to reduce peaks in the medium-high frequency section of the frequency response curve for the loudspeaker, and make the frequency response curve smooth in medium-high frequency. Thereby the sound effect of medium-high frequency section is improved, and the original sound can be reflected more veritably | 10-25-2012 |
20120281869 | SPEAKER AND ACOUSTIC EQUIPMENT INCLUDING THE SPEAKER - A speaker ( | 11-08-2012 |
20120321122 | SPEAKER - A speaker includes a frame, a magnetic circuit secured to the frame, a voice coil, a damper, and a diaphragm. The voice coil is inserted in a magnetic gap of the magnetic circuit. The damper is secured to the voice coil and the frame and formed with a plurality of corrugations. The diaphragm is secured to the frame and the voice coil. One of the plurality of corrugations located on an inner circumferential side of the damper is provided with a plurality of apertures, and these apertures are covered by an elastic member. | 12-20-2012 |
20130016872 | Voice Coil Former Stiffener - A support member for a voice coil former in an audio transducer is described. The support member comprises a bridge between the inner surface of the voice coil former and a radiating surface, such as a diaphragm or cone, which is disposed in the center of the voice coil former. The support member provides added rigidity to reduce wobble during operation of the transducer. | 01-17-2013 |
20130051603 | SPEAKER AND ELECTRONIC DEVICE USING THE SPEAKER - A speaker ( | 02-28-2013 |
20130058521 | Loudspeaker - A loudspeaker is disclosed, comprising a driven body and a suspension for providing a restoring force to the driven body, the suspension having a cup geometry wherein its attachment point on the fixed portion of the loudspeaker is displaced along the axis of motion relative to its attachment point on the driven body and comprising a first concentric region that is extendible to allow reciprocating axial movement of the driven body, a second concentric region which extends transversely from the first region toward one of the attachment points, and a circumferential member affixed to the suspension at a location between the first and second concentric regions, the circumferential member being relatively stiff compared to the material forming the first and second concentric regions. | 03-07-2013 |
20130070953 | Loudspeaker and diaphragm therefor - A loudspeaker radiating diaphragm can be stiffened to help increase the breakup frequency to above the working frequency range of the driver concerned, by forming it of a moulded part and an attached formed part. The moulded part is a radiating surface with stiffening ribs. The formed part is a thin surface of high modulus material, attached to the rear of the ribs. The overall structure can have significantly higher stiffness than either of the two parts. This helps in designing a loudspeaker driver that does not breakup within its working frequency range. | 03-21-2013 |
20130156254 | Transducer With Variable Compliance - A transducer utilizes a sound-producing member positioned in the area of magnetic flux concentration between magnetic poles of opposite polarity. The sound-producing member is variably vibratable in a magnetic structure between the poles to generate acoustic waves, and an acoustic conduit carries the acoustic waves through the magnetic poles e to a location outside the magnetic structure. | 06-20-2013 |
20130279735 | 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 while the radiating unit is on top of the motor unit such that the thickness of the speaker assembly is reduced while the performance of the speaker assembly is maintained or even improved. Also, the speaker can be made into a quadrangular, polygon or a spherical structure. The speaker further has a surround at a level lower than the radiating unit without utilizing the radiating surface of the radiating unit such as a maximized radiating surface is provided, and includes a dual side voice-coil actuation to the radiator unit, thereby providing a slim and flat speaker assembly with high power output. | 10-24-2013 |
20130287244 | LOUDSPEAKER WITH REINFORCED FRAME - An exemplary loudspeaker includes a frame, a yoke engaged with the frame, a magnet fixed to the yoke, a magnet fixed to the yoke, a diaphragm attached to the frame, and a voice coil attached to the diaphragm. The frame includes an annular flange and a supporting bracket. The supporting bracket includes two mounting portions respectively extending down from opposite sides of the annular flange and an annular connecting portion located between the two mounting portions. The yoke is embedded in the annular connecting portion. | 10-31-2013 |
20130287245 | LOUDSPEAKER WITH REINFORCED FRAME - An exemplary loudspeaker includes a frame, a yoke engaged with the frame, a magnet fixed to the yoke, a magnet fixed inside the yoke, a diaphragm attached to the frame, and a voice coil attached to the diaphragm. The frame includes a flange and a supporting bracket. The flange includes two parallel straight portions and two curve portions connected between the two parallel straight portions respectively. The supporting bracket includes a main body, two first extending portions extending from the main body and fixed to the straight portions, two second extending portions extending from the main body and fixed to the curve portions, and a through hole defined in a center of the main body. The yoke is received in the through hole of the main body. | 10-31-2013 |
20130322679 | Micro-Speaker - Disclosed is a micro-speaker. A micro-speaker includes a frame forming a receiving space, a vibrating unit, a magnetic circuit unit, a number of contacts, a front cover and a back cover. The contacts include a first contact and a second contact retained by the frame and partially exposed out of the frame, and a third contact disposed within the receiving space. The vibrating unit includes a diaphragm and a voice coil with a first terminal and a second terminal. The first terminal is electrically connected to the first contact, the second terminal is electrically connected to the third contact. An FPC is provided to electrically connect the third contact to the second contact. | 12-05-2013 |
20130336517 | 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 extends substantially horizontally outward of a peripheral portion of the radiating surface, to a peripheral portion that is separate from the suspension. A coil is coupled to the peripheral portion of the horizontal former. | 12-19-2013 |
20140056463 | SUSPENSION FOR HIGH POWER MICRO SPEAKER AND HIGH POWER MICRO SPEAKER HAVING THE SAME - The present invention relates to a suspension structure for a high power micro speaker and, more particularly, to a shape of a suspension which ensures a lightweight of the suspension as well as high reliability and a conductive pattern which applies electric signals. The present invention provides a suspension for a high power micro speaker that includes an outer peripheral portion, a central portion and a connection portion, is provided with a conductive pattern, and is formed in a rectangular shape, wherein land portions for use in soldering or welding lead-in wires of a voice coil are formed on long connection portions disposed on long sides. | 02-27-2014 |
20140146994 | Dynamic electroacoustic transducer - There is provided a dynamic electroacoustic transducer comprising a diaphragm and an oscillator coil which is fixed to the diaphragm in an oscillator coil portion. The diaphragm has a first portion within the oscillator coil portion and a second portion between the oscillator coil portion and an edge of the diaphragm. The diaphragm has at least one stiffening portion in the region of the second portion, which is of a different stiffness from the second portion of the diaphragm. The stiffening portion is of a such a configuration that a wobble movement of the diaphragm is substantially compensated. | 05-29-2014 |
20140169614 | MINIATURE SUSPENSION MEMBER - The present invention relates to a miniature suspension member for a miniature transducer, said miniature suspension member comprising first and second portions being connected by a flexible member at respective outer regions facing away from a centre of the suspension member, wherein the first portion, the second portion and the flexible member form, in combination, a polymer-based one-piece injection mouldable structure. | 06-19-2014 |
20140193026 | LOUDSPEAKER, ELECTRONIC DEVICE AND MOBILE DEVICE BOTH INCLUDING THE SAME, AND METHOD OF PRODUCING THE SAME - A magnetic circuit includes an upper plate, a magnet, a lower plate, and a center pole. The outer circumference of a frame is coupled with a diaphragm. One end of a voice coil is coupled with the diaphragm, and the other end is inserted into a magnetic gap formed between the upper plate and the center pole. The frame is provided with a through hole. An insertion part provided on the outer circumference of the upper plate is inserted into the through hole. The frame is coupled with the upper plate by bending the insertion part. | 07-10-2014 |
20140254858 | Electro-acoustic transducer - An electro-acoustic transducer includes a frame having sidewalls, a magnetic circuit system received in the frame and a vibration system fixed to the frame. The vibration system includes a vibrating diaphragm and a driving voice coil for driving the vibrating diaphragm to move. The electro-acoustic transducer further includes a communication coil, which is fixed within the frame and located below the vibrating diaphragm and surrounding the driving voice coil. The communication coil is a symmetric loop structure, which includes four straight edge portions and curved corner portions located at four corners to connect adjacent straight edge portions. A distance between each of the curved corner portions and the driving voice coil is greater than a distance between each of the straight edge portions and the driving voice coil. | 09-11-2014 |
20140270326 | Planar-Magnetic Transducer With Improved Electro-Magnetic Circuit - The invention provides a planar-magnetic transducer with a frame and a primary magnet row structure of elongated magnets adjacent and air gapped from a first surface side of a mobile portion of a thin film or thin structure diaphragm with conductive traces incorporated with the diaphragm. An additional pair of magnetic sources attached to the frame outside of the vibratable region of the diaphragm and mounted above the plane of the opposite, second surface side of the diaphragm to enhance magnetic energy near the second surface side of the film diaphragm, without any magnet rows attached directly in front of the second surface side of the vibratable region of the diaphragm between the additional pair of magnetic sources. The additional magnetic sources can increase the drive force to the outer portions of the vibratable diaphragm, or across the diaphragm, to provide more control near the termination edge of the diaphragm and to create a more planar displacement of the diaphragm and increase transducer efficiency. | 09-18-2014 |
20140270327 | ACOUSTIC TRANSDUCERS - The invention generally relates to acoustic transducers. In certain aspects, the acoustic transducer includes a curved diaphragm and an actuator coupled to the curved diaphragm to cause movement of the curved diaphragm. In certain embodiments, the curved diaphragm has at least one free edge. In other embodiments, the left and right edges of the curved diaphragm are associated with auxiliary supports. In another embodiment, the acoustic transducer is a multi-pole loudspeaker wherein a curved diaphragm radiates the sound energy in a modified dipole pattern. The curvature of the radiating surface of the transducer reduces sound cancellation from sound energy reflected by nearby surfaces. | 09-18-2014 |
20140294226 | TRANSDUCER APPARATUS WITH A TENSION ACTUATOR - An acoustic transducer comprising: a flexible membrane; and a tension actuator, wherein the tension actuator is configured to be electrically controllable and define to the acoustic properties of the transducer dependent on the tension of the membrane. | 10-02-2014 |
20140321691 | SUSPENSION FOR SOUND TRANSDUCER - The present invention relates to a suspension for a sound transducer. The present invention discloses a suspension for a sound transducer, to which a diaphragm and voice coil of the sound transducer are attached and which guides the vibrations of the diaphragm and voice coil, comprising: a central portion to which a voice coil is attached; an outer peripheral portion resting on a frame; and a connecting portion connecting the central portion and the outer peripheral portion, wherein the central portion has a mold portion, which is molded by heat or pressure to take the place of a center diaphragm. | 10-30-2014 |
20140321692 | Loudspeaker - The invention relates to a loudspeaker, which contains bearing structure, a magnetic arrangement ( | 10-30-2014 |
20140334662 | ELECTRO-ACOUSTIC TRANSDUCER - An electro-acoustic transducer includes a frame with an accommodating space defined therein and an opening opened in a top surface thereof, at least one driving unit equipped in the accommodating space of the frame, a diaphragm movably mounted at the opening of the frame, at least one fulcrum settled in the accommodating space of the frame, and at least one lever placed next to the fulcrum to contact with and use the fulcrum as rotation center thereof. The lever connects with the driving unit and the diaphragm at two ends thereof and transmits vibration wave from the driving unit to the diaphragm. The lever has a longer length from the fulcrum to the diaphragm than from the fulcrum to the driving unit for increasing the vibration stroke of the diaphragm during transmitting the vibration wave. | 11-13-2014 |
20140355813 | Speaker with Diaphragm Arrangement - A diaphragm arrangement includes a middle foaming layer defining a first flat surface and an opposed flat surface, a first layer overlapped on the first flat surface of the middle foaming layer, and a second layer overlapped on the second flat surface of the middle foaming layer to form a flat speaker diaphragm which is arranged to mount at an opening of a supporting frame of a speaker. | 12-04-2014 |
20140355814 | STABILIZER FOR MICROPHONE DIAPHRAGM - A stabilizer for use in stabilizing a diaphragm of an audio device, such as a microphone transducer or a speaker driver. The stabilizer is configured to be attached to the diaphragm to provide stability to the diaphragm, which may be in the form of one or more of counteraction to asymmetric movement about the center of mass of the voice coil; counteraction to rotation in a direction perpendicular to the desired axial motion of the diaphragm; and additional nonlinear stiffness for mechanical limiting of the diaphragm in the axial direction, which may assist in preventing large excursions of the diaphragm from atypical sources, such as drop, shock, etc. | 12-04-2014 |
20140369547 | SUSPENSION MEMBER WITH INTEGRATED SEALING MEMBER - The present invention relates to a suspension member for suspending a moveable piston structure of a transducer, the suspension member comprising tolerance compensation means comprising an elastomeric material, said tolerance compensation means being formed as a structure extending in a direction so as to form an acoustical seal between a first chamber and a second chamber. | 12-18-2014 |
20150010195 | MAGNETICALLY ONE-SIDE DRIVEN PLANAR TRANSDUCER WITH IMPROVED ELECTRO-MAGNETIC CIRCUIT - A single-ended planar transducer device for generating a sound signal based on an electrical signal comprising at least two primary rows of primary magnets, at least one return row of at least one return structure, a diaphragm, a conductive trace formed on the diaphragm, and a frame. The frame supports two primary rows to define at least one core set comprising no more than two primary rows. A primary magnetic field is established between the primary rows in the at least one core set. The frame supports at least one return row adjacent to the at least one core set. A return magnetic field is established between each return row and any primary row adjacent thereto. A first portion of the trace is arranged at least partly within each primary magnetic field and a second portion of the trace is arranged at least partly within each return magnetic field. | 01-08-2015 |
20150016656 | DUAL-DIAPHRAGM ACOUSTIC TRANSDUCER - A dual-diaphragm acoustic transducer includes a substrate defining an opening, an inner diaphragm and an outer diaphragm concentrically mounted at one same side of the substrate corresponding to the opening of the substrate, and a plurality of elastic supporting members connected between the outer perimeter of the inner diaphragm and the inner perimeter of the outer diaphragm. Thus, when a sound wave enters the opening of the substrate, the sound wave pressure forces the outer diaphragm to displace and to carry the inner diaphragm to move, and the inner diaphragm itself will also be forced by the sound wave pressure to have a larger displacement than the outer diaphragm, enhancing the sensitivity. Further, using the inner and outer diaphragms to respond to different sound wave pressures can enhance the sound wave pressure sensing range. | 01-15-2015 |
20150016657 | VIBRATING DIAPHRAGM AND SOUNDER USING THE SAME - A diaphragm and a sounder using the same are disclosed in the present disclosure. The diaphragm includes a suspension portion and a dome assembled with the suspension portion. The dome includes a polyethylene terephthalate (PET) layer, a middle layer and an adhesive layer, with the middle layer sandwiched between the PET layer and the adhesive layer. The middle layer is formed with a first through hole for adjusting the deformation amount of the diaphragm. The present disclosure can improve the flatness of the dome and prevent deformation of the dome after the vibration. | 01-15-2015 |
20150036865 | ELECTRICAL SIGNAL TO AUDIO SIGNAL TRANSDUCER WITH A DEFORMABLE DIAPHRAGM UNIT - An electrical signal to audio signal transducer with a deformable diaphragm unit includes a connective portion and a deformable diaphragm unit. The connective portion connects the deformable diaphragm unit with a wall of a box. The deformable diaphragm unit is linked up with a through opening of the connective portion to form a passage. Push and pull exerted on the deformable diaphragm unit by the magnetic force induced by the current flows through the voice coil can cause deformable diaphragm unit to deform and move in a reciprocating manner and thus generate audible sounds. Therefore, with the transducer of the present invention, poor performance due to the dimensional constrain may be overcome. | 02-05-2015 |
20150036866 | SUSPENSION SYSTEM FOR MICRO-SPEAKERS - A speaker driver including a frame and a magnet assembly positioned within the frame. A sound radiating surface may be suspended over the magnet assembly. The sound radiating surface may include a top face and a bottom face, and the bottom face may face the magnet assembly. A suspension member may suspend the sound radiating surface over the magnet assembly. The suspension member may include a top side connected to the bottom face of the sound radiating surface and a bottom side connected to the magnet assembly. A voice coil extends from the bottom face of the sound radiating surface. | 02-05-2015 |
20150036867 | ACOUSTIC TRANSDUCER COMPRISING A PLURALITY OF COAXIALLY ARRANGED DIAPHRAGMS - An acoustic transducer comprises one or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. The diaphragms may be driven directly, inertially or fluidically. If diaphragms are driven by rods that pass through holes in the diaphragms, noise may be generated by air that leaks through the pass-through holes. This noise may be reduced or eliminated by measures that reduce or eliminate the air leakage. | 02-05-2015 |
20150036868 | ACOUSTIC TRANSDUCER COMPRISING A PLURALITY OF COAXIALLY ARRANGED DIAPHRAGMS - An acoustic transducer includes a housing, a plurality of diaphragms suspended from the housing and separated into one or more groups, and one or more motors combined with the housing that operate in response to an electrical signal. The diaphragms of each group are driven by a respective motor to which all the diaphragms in the group are coupled and at least one motor has an indirect coupling with no direct mechanical connection to the diaphragms driven thereby. One or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. | 02-05-2015 |
20150071481 | Loudspeaker Configuration - Embodiments are provided for configurations of a loudspeaker. The loudspeaker may include a frame, a magnetic structure having a magnetic gap, a voice coil suspended within the magnetic gap, a first suspension element, a diaphragm, and a second suspension element. The first suspension element may have an inner rim and an outer rim attached to the frame. The diaphragm may have an outer portion and a continuous central portion attached to the voice coil via a first coupler. The outer portion of the diaphragm may be attached to the inner rim of the first suspension element. The second suspension element may have an inner rim and an outer rim attached to the frame. The inner rime of the second suspension element may be attached to the diaphragm via a second coupler along a circumferential middle section of the diaphragm between the continuous central portion and outer portion of the diaphragm. | 03-12-2015 |
20150071482 | Loudspeaker Assembly Configuration - Embodiments are provided for configurations of a loudspeaker and assembly of the loudspeaker. The loudspeaker configuration may include a circumferential spacer element having a first surface and a second surface. The first surface may be attached to an outer rim of a first suspension element. An inner rim of the first suspension element may be attached to an outer rim of a diaphragm. A central portion of the diaphragm may be coupled to a voice coil. The second surface may be attached to an outer rim of a second suspension element. An inner rim of the second suspension element may be coupled to a lower surface of the diaphragm. The circumferential spacer element has a structural shape configured to be coupled to a loudspeaker frame such that the voice coil may be suspended at least partially within a magnetic gap of a magnetic structure of the loudspeaker. | 03-12-2015 |
20150078611 | JOINT SPEAKER SURROUND AND GASKET, AND METHODS OF MANUFACTURE THEREOF - A joint speaker surround and gasket. The speaker surround of the joint speaker surround and gasket is formed of a surround material and has an inner edge defining a speaker cone aperture shaped to match a speaker cone and an outer edge portion shaped to match a housing. The gasket of the joint speaker surround and gasket is formed of a gasket material. The gasket is integrally bonded to the outer edge portion of the speaker surround. | 03-19-2015 |
20150098606 | ELECTROSTATIC ELECTROACOUSTIC TRANSDUCER AND METHOD OF MANUFACTURING THE SAME - When a diaphragm formed in the shape of an oval is held by a holding member, an electrostatic electroacoustic transducer which allows stable tension without a diaphragm flexing is provided. In the electrostatic electroacoustic transducer, a diaphragm | 04-09-2015 |
20150117697 | AUDIO PLAYBACK DEVICE - An audio playback device is provided. The audio playback device includes a magnetic module, an annular armature, a coil module and a diaphragm. The magnetic module includes a magnetic source and two yokes each connected to one of two magnetic poles generated by the magnetic source and extends to form a magnetic field. The annular armature includes a first, a second, a third and a fourth arms that form a hollow area. At least part of the first arm is located in the magnetic area. The coil module is winded on the second arm and generates two varying electro-magnetic poles according to an alternating current data signal. The annular armature vibrates according to a relation of the two varying electro-magnetic poles and the magnetic field. The diaphragm is connected to the annular armature through a driving rod to vibrate according to the annular armature to generate a sound wave. | 04-30-2015 |
20150117698 | LOW PROFILE LOUDSPEAKER TRANSDUCER - A low profile loudspeaker transducer is presented with an arrangement of placing the motor up near or into the inside concave portion of a convex dome or inverted convex cone diaphragm. In some preferred embodiments the low profile structure is facilitated by an inverted placement of the spider suspension above the plane of the surround suspension to stabilize the voice coil during excursion while supporting a low profile structure. Additionally, in numerous embodiments a coupling structure is utilized between the voice coil former and the diaphragm to create a broad surface area connection to the diaphragm to create a stiffer structure and minimizing breakup modes and creating a more robust mechanical structure to withstand greater output capability. | 04-30-2015 |
20150125024 | SPEAKER SURROUND STRUCTURE FOR MAXIMIZING CONE DIAMETER - A surround that is generally arched in shape and that includes a radial exterior flange that extends downward from exterior side of the arched portion of the surround and that adhesively attaches to the inner wall or edge of the mounting ring of the frame or the loudspeaker. | 05-07-2015 |
20150139477 | SUSPENSION FOR ACOUSTIC DEVICE - An apparatus includes a suspension element coupling a first rigid element to a second rigid element such that the first rigid element is movable in a reciprocating manner relative to the second rigid element. The suspension element includes radial features, some of which may have radial segments of opposite concavity. The segments with opposite concavity provide added stiffness in the primary axis of vibration and may contribute to a more symmetrical force-deflection relationship. | 05-21-2015 |
20150146910 | ELECTROACOUSTIC DRIVER - An electroacoustic driver includes a diaphragm, a diaphragm drive system and a diaphragm suspension. The diaphragm system is configured to subject the diaphragm to a motion, wherein the diaphragm suspension is configured to guide the diaphragm. The diaphragm drive system includes an active element configured to actively influence the motion of the diaphragm. | 05-28-2015 |
20150146911 | SUSPENSION SYSTEM FOR MICRO-SPEAKERS - A speaker driver including a frame and a magnet assembly positioned within the frame. A sound radiating surface may be suspended over the magnet assembly. The sound radiating surface may include a top face and a bottom face, and the bottom face may face the magnet assembly. A suspension member may suspend the sound radiating surface over the magnet assembly. The suspension member may include a top side connected to the bottom face of the sound radiating surface and a bottom side connected to assembly support member that is separate from the magnet assembly. A voice coil extends from the bottom face of the sound radiating surface. | 05-28-2015 |
20150304776 | Audio Transducer With Electrostatic Discharge Protection - An apparatus including a transducer configured to generate sound, where the transducer comprises a diaphragm. At least one portion of the transducer is electrically conductive and is configured to provide an electrical connectivity to a ground. The at least one portion, at least in part, circumferences the diaphragm. | 10-22-2015 |
20150312679 | LOUDSPEAKER WITH TWO MOTORS AND ONE SUSPENSION - A loudspeaker including a diaphragm, a surround attached to the periphery of the diaphragm, two voice coils attached to the underside of the diaphragm and suspended within corresponding magnetic motors, and a frame that all components are attached to, such that there is no other suspension element in this design, maximizing the excursion capability of the diaphragm to be the clearance between the diaphragm and the motors where, the overall depth of the loudspeaker can be below 13 mm and the operating bandwidth of the loudspeaker extends below 400 Hz. | 10-29-2015 |
20150319531 | Transducer Suspension Elements With Built-In Tinsel Wire - A transducer suspension element is presented. The transducer suspension element includes a suspension member having a body, the body having a main portion, a first portion extending from the main portion and continuing to an outer edge, and a second portion extending from the main portion and continuing to an inner edge. At least one conductor is disposed within or on the suspension member body, the at least one conductor extending at least within a section of the first portion and within a section of the second portion of the suspension member, and wherein a length of the at least one conductor of the suspension member is greater than a minimal distance from the inner edge to the outer edge across the suspension member. | 11-05-2015 |
20150350789 | ELECTROACOUSTIC TRANSDUCER - An electroacoustic transducer | 12-03-2015 |
20150373456 | Torsion Diaphragm Apparatus - A diaphragm assembly disposed in a receiver and includes a support structure. The support structure is generally rectangular and has a length that extends along a longitudinal axis. The support structure has a width that is generally perpendicular to the longitudinal axis. The length is greater than the width. The assembly includes a paddle and a membrane, and the membrane extends over and being supported by the support structure and paddle. A gap is disposed between the paddle and the support structure. A plurality of tabs extend across the gap and connecting the paddle and support structure. The tabs are located along the length of the support structure and extend outward from the longitudinal axis across the gap. The tabs move in a twisting motion and not bending motion as the paddle moves. | 12-24-2015 |
20150382111 | VOICE COIL FORMER STIFFENER - A voice coil former for an audio transducer is described. The voice coil former has a corrugated circumferential surface for providing improved rigidity. The corrugated shape of the former provides sufficient rigidity such that unwanted resonance is eliminated from the audible range. In addition, the corrugated shape of former may also provide sufficient rigidity such that no additional supporting member is needed. | 12-31-2015 |
20160014518 | SPEAKER AND DIAPHRAGM THEREOF | 01-14-2016 |
20160014519 | Electro acoustic diaphragm | 01-14-2016 |
20160014521 | TRANSDUCER AND ELECTRONIC DEVICE INCLUDING THE SAME | 01-14-2016 |
20160014522 | SPEAKER DIAPHRAGM, SPEAKER, DEVICE, AND METHOD FOR MANUFACTURING SPEAKER DIAPHRAGM | 01-14-2016 |
20160014523 | Speaker Assembly | 01-14-2016 |
20160014524 | VOICE COIL SPEAKER | 01-14-2016 |
20160021460 | Sound Transducer - An apparatus including a frame; a coil movably connected to the frame; and a magnet system connected to the frame. The magnet system includes at least one magnet and at least one pole piece connected to the at least one magnet. The at least one pole piece include a magnet pot. A cross sectional length of the magnet pot and the frame are substantially the same in at least one cross sectional location. | 01-21-2016 |
20160021463 | VIBRATING BODY FOR ACOUSTIC TRANSDUCER AND SPEAKER DEVICE - A vibrating body for an acoustic transducer is provided, in which the high resonance frequency associated with inverse resonance can be outside the audible range and which can improve the acoustic characteristic of a speaker device. The vibrating body | 01-21-2016 |
20160029127 | SPEAKER APPARATUS - A support chassis mounted on a sounding side of a speaker apparatus is formed of an iron material. The support chassis is formed in a shape in which a central supporting part nears a main-body chassis. A magnetic field generating unit is fixed to the central supporting part on a side of a recess of the support chassis. The support chassis includes a frame part, the central supporting part, and spoke parts. In the spoke part, a width dimension D | 01-28-2016 |
20160044418 | Loudspeaker Diaphragm - Embodiments are provided for configurations of a loudspeaker. The loudspeaker may include a frame, a magnetic structure having a magnetic gap, a voice coil suspended within the magnetic gap, a first suspension element, a diaphragm, and a second suspension element. The first suspension element may have an inner rim and an outer rim attached to the frame. The diaphragm may have an outer portion and a continuous central portion attached to the voice coil via a first coupler. The outer portion of the diaphragm may be attached to the inner rim of the first suspension element. The second suspension element may have an inner rim and an outer rim attached to the frame. The inner rime of the second suspension element may be attached to the diaphragm via a second coupler along a circumferential middle section of the diaphragm between the continuous central portion and outer portion of the diaphragm. | 02-11-2016 |
20160057540 | SPEAKER DEVICE - Provided is a speaker device with which high strength can be obtained for the connection between an outer peripheral region of an edge and an attachment part of a frame, even while reducing a size of the speaker device without sacrificing a breadth of a diaphragm and the edge. This speaker device ( | 02-25-2016 |
20160057543 | HIGH ASPECT RATIO MICROSPEAKER HAVING A TWO-PLANE SUSPENSION - A microspeaker includes a frame and a diaphragm having length sides that are longer than its width sides. A magnet is positioned below the diaphragm. A yoke includes a base portion positioned below the magnet and sidewalls which extend from the base portion, the yoke sidewalls positioned only along a length dimension of the magnet. A voice coil includes an upper end attached to a bottom face of the diaphragm and a lower end positioned within a gap formed between the length dimension of the magnet and the yoke sidewalls. A first suspension member is attached to the length sides and the width sides of the diaphragm and the frame. The first suspension member is within a first plane. A second suspension member is attached to the lower end of the voice coil and the frame. The second suspension member is in a second plane different from the first plane. | 02-25-2016 |
20160066098 | Compact, Wide-Frequency Range, Loudspeaker Transducer - A speaker system having a voice coil and diaphragm supported within a speaker frame, and three suspension systems, where one suspension system includes at least three wires extending between the voice coil and the speaker frame, one to carry a positive charge, another to carry a negative charge, and yet another one that carries no charge, where the three wires are positioned so as to permit axial movement of the voice coil without restraint of the voice coil by the wires. | 03-03-2016 |
20160080870 | Audio Speaker Surround Geometry For Improved Pistonic Motion - An audio speaker having a suspension system including a surround to support a diaphragm within a frame and to reduce non-pistonic motion of the diaphragm at several resonant frequencies is disclosed. More particularly, embodiments of the surround include a film that undulates in a peripheral direction around the diaphragm and includes several undulations above and below a radial gap between the diaphragm and the frame. Other embodiments are also described and claimed. | 03-17-2016 |
20160094917 | CAPACITIVE POSITION SENSING FOR TRANSDUCERS - A micro speaker having a capacitive sensor to sense a motion of a speaker diaphragm, is disclosed. More particularly, embodiments of the micro speaker include a conductive surface of a diaphragm facing conductive surfaces of several capacitive plate sections across a gap. The diaphragm may be configured to emit sound forward away from a magnet of the micro speaker, and the capacitive plate sections may be supported on the magnet behind the diaphragm. In an embodiment, the gap provides an available travel for the diaphragm, which may be only a few millimeters. A sensing circuit may sense capacitances of the conductive surfaces to limit displacement of the diaphragm to within the available travel. | 03-31-2016 |
20160112804 | MAGNETIC ASSEMBLY AND ELECTRO-ACOUSTIC TRANSDUCER USING SAME - An magnetic assembly and an electro-acoustic transducer using the same are disclosed. The magnetic assembly includes a lower plate, a main magnet positioned on a central portion of the lower plate, an auxiliary magnet positioned on a periphery portion of the lower plate, surrounding the main magnet with space, and having an inner surface facing the main magnet and an outer surface opposite to the inner surface, and a first pole plate. The first pole plate includes a base body attached on the auxiliary magnet, and a magnetic conduction member connected with the base body and overlapping the outer surface of the auxiliary magnet for forming a loop of magnetic flux together with the base body and the lower plate as well as the auxiliary magnet. | 04-21-2016 |
20160127832 | SPEAKER DIAPHRAGM SUPPORTING STRUCTURE - A speaker diaphragm supporting structure includes a basket defining a flared front opening and an internal shoulder portion, and having annular magnet mounted to a rear side thereof; a voice coil located in the annular magnet; a diaphragm including a soft suspended flange for fixing to the flared front opening of the basket, a rigid vibrating membrane having a centered voice coil fixing hole for gluing to around the voice coil, a plurality of supporting legs integrally formed on a rear side thereof and a fixing ring portion glued to rear ends of the supporting legs; and a flexible suspension member having an outer circumferential edge set on the internal shoulder portion of the basket and an inner circumferential edge glued to the fixing ring portion, so that the suspension member is held to around an outer side of the annular magnet. | 05-05-2016 |
20160127835 | Tablet Woofer and Electronic Device Using Same - A tablet woofer and an electronic device using same. The woofer comprises a vibrating diaphragm, at least four mutually independent drive units, and a housing. The vibrating diaphragm is a rectangle shape, and comprises a rigid arc portion at the central position and a spiral curve portion at the periphery; the drive unit comprises a voice coil unit and a corresponding magnetic circuit unit, and four angles of the arc portion of the vibrating diaphragm are each combined with one voice coil unit; the housing is provided with mounting holes for accommodating and mounting the drive units, and sound holes penetrating through the mounting plane; the spiral curve portion of the vibrating diaphragm is fixedly connected to the periphery of the upper side of the housing. | 05-05-2016 |
20160142825 | Suspension Element for Suspending the Diaphragm of a Loudspeaker Driver to the Chassis Thereof as Well as Driver and Loudspeaker Comprising the Same - The present invention provides a loudspeaker driver not suffering from high levels of distortion caused by the non-linear stiffness commonly found with drivers that utilize progressive suspension elements. The novel suspension element for suspending the diaphragm of a loudspeaker driver to the chassis thereof has a geometry with two opposing first sections and two opposing second sections, which connect the two first sections. The second sections have a curvature radius smaller than that of the first sections. The mean height of the radial cross-sectional profile of the second section is higher than the height of the cross-sectional profile of the first sections. The first sections have an axial stiffness greater than the second sections. | 05-19-2016 |
20160165351 | Diaphragm And Speaker Using Same - The present disclosure provides diaphragm, which includes a dome part, a suspension part supporting the dome part, an adhesive layer located between the dome part and the suspension part. The suspension part includes a supporting portion for supporting the dome part and a periphery extending from and surrounding the supporting portion. The dome part further includes a first ceramic layer, a damping layer attaching to the supporting portion via the adhesive layer. By virtue of the configuration of the dome part, the diaphragm has better damping performance and greater stiffness. In addition, by virtue of the ceramic layer, the diaphragm is provided with better heat-stability. | 06-09-2016 |
20160192075 | SPEAKER AND VIBRATION CONTROL UNIT - A speaker includes a first vibrator, a first driving unit, a second vibrator, a second driving unit and a supporting unit. The first vibrator is connected to a diaphragm, which vibrates, thereby emitting sound. The first driving unit vibrates the first vibrator, thereby vibrating the diaphragm. The second vibrator is connected to a weight member. The second driving unit is connected to the opposite side of the first driving unit to the first vibrator, and vibrates the second vibrator on the same vibration axis as the vibration axis of the first vibrator, thereby vibrating the weight member. The supporting unit supports a coupled body, configured by joining the second vibrator and the weight member, at two or more portions in the direction of the vibration axis. | 06-30-2016 |
20160198261 | SPEAKER | 07-07-2016 |
20160198264 | Electromagnetic Speaker | 07-07-2016 |
20160198267 | Increased Compliance Flat Reed Transducer | 07-07-2016 |
20160205476 | Vibrating Panel Device for Electromagnetic Vibrator and Manufacture Method Thereof | 07-14-2016 |
20160205478 | DIGITAL ACOUSTIC DEVICE WITH INCREASED SOUND POWER | 07-14-2016 |
20160205479 | SPEAKER DEVICE | 07-14-2016 |
20160381461 | Acoustic Driver Tensioner - An acoustic driver may have one or more flexible membranes that are configured to a predetermined tension. A flexible driver membrane can be positioned to continuously span a rigid frame. The rigid frame may have at least one suspension feature continuously applying force on the flexible driver membrane. A suspension feature can be a cantilever or enclosed spring each defined by a channel. | 12-29-2016 |
20160381462 | Speaker - A speaker is disclosed in the present disclosure. The speaker includes a vibration system including a vibrating diaphragm and a flat voice coil for driving the vibrating diaphragm; a magnetic circuit system including a first permanent magnet and a second permanent magnet, which are separated with opposite magnetic poles thereof facing each other; a magnetic gap formed between the first permanent magnet and the second permanent magnet for partially receiving the flat voice coil; and a housing for accommodating the vibrational system and the magnetic circuit system. Two magnetic poles of the first permanent magnet and two magnetic poles of the second permanent magnet are close to each other respectively, N-pole of the first permanent magnet is separated from and faces S-pole of the second permanent magnet, while S-pole of the first permanent magnet is separated from and faces N-pole of the second permanent magnet. | 12-29-2016 |
20180027333 | Miniature speaker | 01-25-2018 |
20180027334 | Miniature speaker | 01-25-2018 |
20180027335 | Miniature Sounding Device | 01-25-2018 |
20180027336 | Miniature Sounding Device | 01-25-2018 |