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| Number | Title | Issue Date |
| 7325650 | Speaker A speaker according to the present invention is equipped with a diaphragm having a central portion of a dome shape and an edge portion formed on an outer periphery thereof. Further, the speaker has also a frame attached with an outermost fringe of the edge portion a... | 02/05/2008 |
| 7319772 | Speaker device for improving mid/high-range frequencies A speaker device for improving mid/high-range frequencies includes a magnetic base, a frame annularly mounted to the magnetic base, a cone mounted to an inner side of the frame, a voice coil mounted to the cone and suspended in a gap of the magnetic base, and a dead... | 01/15/2008 |
| 7316289 | Electro-acoustic transducer and method of manufacturing transducer An electro-acoustic transducer includes a tone generator, a vibrator, and a case. The tone generator includes a diaphragm, and a voice coil joined to the diaphragm. The vibrator includes a magnetic circuit having a magnetic gap at which the voice coil is positioned,... | 01/08/2008 |
| 7306073 | Electroacoustic transducer comprising a membrane with a middle area comprising stiffening grooves A membrane (20) has a membrane axis (5) and a middle area (50), a central cup-shaped depression (52) being provided around said membrane axis (5), which depression (52) preferably has a connecting channel (53), wherei... | 12/11/2007 |
| 7292707 | Loudspeaker A loudspeaker has a diaphragm with an edge area and a central area. A voice coil carrier may be fastened to the diaphragm in the central area, a voice coil being wound around the voice coil carrier. A magnet system may be included into which the voice coil carrier a... | 11/06/2007 |
| 7292702 | In-wall speaker system method and apparatus The disclosure relates to an in-wall speaker system, specifically a system that is not readily visible and mounted in a room. The in-wall speaker system is comprised of a base frame that is adapted to be mounted between support members of a wall. The in-wall speaker... | 11/06/2007 |
| 7155021 | Loudspeaker having an acoustic panel and an electrical driver A panel-shaped loudspeaker comprising a panel (1) having a first main surface (1A) and a second main surface (1B) parallel to the first main surface and further comprising an exciter (3) positioned at the first main surface. When the exci... | 12/26/2006 |
| 7106881 | Speaker A speaker 300 is formed using a plate such as a mobile phone display window 310 as a vibrating element. At least two dynamic actuators 950 are positioned behind the edges of the window 310 to actuate the window 310 through its boun... | 09/12/2006 |
| 7088836 | Door with structural components configured to radiate acoustic Energy A door leaf includes a stiff, light structural part that maintains fed-in vibrational energy and, by flexural waves, propagates this energy in at least one active surface perpendicular to its thickness to distribute resonance mode vibration components over at least ... | 08/08/2006 |
| 7020302 | Speaker, speaker module, and electronic equipment using the speaker module A loudspeaker comprising an enclosure 31 provided with a second diaphragm disposed at an opening, and at least one sound generator 40 coupled acoustically with the enclosure. The sound generator is provided with a first diaphragm 27, wherein the... | 03/28/2006 |
| 6929091 | Planar diaphragm loudspeaker and related methods A planar diaphragm loudspeaker for use in a suspended ceiling grid and related methods of manufacturing are provided. The loudspeaker includes a rectangular, planar diaphragm of polymer material sized to fill an opening of the ceiling grid. The front surface of the ... | 08/16/2005 |
| 6920957 | Loudspeaker diaphragm A loudspeaker diaphragm affixed with a coil includes an edge portion located outside of a portion affixed with the coil and a center portion located inside of the portion affixed with the coil. The center portion is provided thereon with ribs. With these ribs, the h... | 07/26/2005 |
| 6863152 | Low profile audio speaker A symmetrically loaded, shallow suspension speaker with stiff diaphragm having a minimum dimension that is greater than the diameter of the magnet that drives the diaphragm thus allowing the suspension of the diaphragm to extend nearly to the bottom of the speaker b... | 03/08/2005 |
| 6830876 | Acoustic resistor for hearing improvement and audiometric applications, and method of making same An acoustic resistor or damper and method of manufacturing the same is disclosed. The damper has mesh material and mounting material attached to the mesh material. The mounting material defines an open region for transmission of sound through the mesh material, and ... | 12/14/2004 |
| 6820719 | Butterfly damper A butterfly damper comprises an inner circumferential frame, an outer circumferential frame and at least one arm member. The arm member has one end connected to the outer circumferential frame and the other end connected to the inner circumferential frame. The arm m... | 11/23/2004 |
| 6814181 | Electrically conductive damper device for speaker There is provided an electrically conductive damper device for a speaker in which local bending is reduced and break-downs of material of the damper and metallic wires incorporated in the damper are prevented, by additionally providing one or more sheets of damper f... | 11/09/2004 |
| 6796401 | Speaker apparatus equipped with means for producing complicated waveform of low frequency with higher improved fidelity In a speaker apparatus equipped with a speaker unit including a magnet, a frame and a diaphragm, a speaker housing has a substantially cylindrical shape, and also has such a structure that the speaker unit is secured onto one end surface of the cylindrical shape of ... | 09/28/2004 |
| 6789643 | Butterfly damper A butterfly damper comprises an inner circumferential frame, an outer circumferential frame and at least one arm member. The outer circumferential frame has opposite end surfaces and an inner peripheral surface. The inner peripheral surface is connected to the oppos... | 09/14/2004 |
| 6751330 | Speaker system A driver unit is fixed to a stand. A front box and a rear box are directly fitted to the stand through a buffer material. A box comes into contact with the driver unit through a buffer material and is fixed to the stand. Therefore, sound of the driver unit is not tr... | 06/15/2004 |
| 6732832 | Speaker damper A speaker damper comprises a damper casing and a metallic whisker, wherein the damper casing is substantially a woven pad formed as a circular wafer with corrugated sections, while the metallic whisker is substantially a conductive wire intermittently penetrated and... | 05/11/2004 |
| 6634456 | Vibrating diaphragm of false speaker structure A kind of vibrating diaphragm of false speaker structure which includes a center piece with integrated formation directly on a larger outer diameter surface layer body, a connected suspended edge provided at the side way of the surface layer body in circl... | 10/21/2003 |
| 6626262 | Waterproof speaker A waterproof speaker has a yoke provided with a magnet and a center pole therein. A top plate is attached on the periphery of the yoke, wherein the center pole protrudes through a center opening of the top plate. A frame is mounted on a front surface of t... | 09/30/2003 |
| 6567528 | Offset apex spider An electrodynamic transducer includes a frame, a magnet assembly providing a magnetic field across an air gap, a voice coil, a coil former for supporting the voice coil in the air gap, and a diaphragm having an outer perimeter and an apex. The coil former... | 05/20/2003 |
| 6549637 | Loudspeaker with differential flow vent means Differential flow vents allow airflow within a vent to be preferential. A flange disposed within a vent introduces non-linearities and causes a preferred direction of airflow into an expanding volume. The differential flow vents are used in conjunction wi... | 04/15/2003 |
| 6390232 | Speaker cone assembly A speaker cone assembly comprises a felted paper-type cone fabricated of a composite material and a molded surround. The composite cone material contains natural fibers and synthetic fibers, where the synthetic fibers are able to chemically bond to materi... | 05/21/2002 |
| 6385327 | Device having two coaxially disposed bodies which are movable relative to one another along a translation axis A device including two bodies (3, 5) which are disposed coaxially with respect to a translation axis (1), and including a comparatively compact suspension via which at least one of the bodies is movable with respect to the other body along the translation... | 05/07/2002 |
| 6332029 | Acoustic device Acoustic device including a member extending transversely of its thickness and capable of sustaining bending waves at least over an intendedly consequentially acoustically active area of the transverse extent of said member, the member having, by reason o... | 12/18/2001 |
| 6321868 | Watertight apparatus capable of being immersed and including an acoustic transducer The present invention concerns a watertight apparatus capable of being immersed in a liquid, for example a watertight watch, including a case (1) with an inner chamber (10) communicating with the exterior, the chamber being separated from the exterior by ... | 11/27/2001 |
| 6305491 | Speaker A speaker includes a diaphragm, a frame accommodating the diaphragm and an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame. The edge has a thi... | 10/23/2001 |
| 6236733 | Loudspeaker A loudspeaker has a frame, a magnetic circuit formed on the frame, a voice coil bobbin disposed in a magnetic gap of the magnetic circuit, and a diaphragm connected to the voice coil bobbin at an inner periphery and to the frame at an outer periphery ther... | 05/22/2001 |
| 6144753 | Damper for a speaker apparatus A speaker apparatus has a damper for supporting vibrating elements including a vibrating diaphragm. The damper is formed by injecting a predetermined amount of a resin material into a metal mold of an injection molding equipment.... | 11/07/2000 |
| 5909014 | Low frequency equaphase surround loudspeaker Shown, in the application, is a novel and extremely cost effective method to replace traditional and contemporary baffles and enclosures used for preventing the cancellation and consequent radiation of lower frequencies from loudspeakers. The space occupi... | 06/01/1999 |
| 5878150 | Damper for a loudspeaker and a method for producing the same A damper for a loud speaker is produced by molding a substrate into a desired shape in which a fabric or knitted cloth composed of core-sheath type conjugate fibers composed of filaments having a core-sheath type structure is used as the substrate. A resi... | 03/02/1999 |
| 5761322 | Portable computer speaker enclosure A portable computer system including sealed acoustic suspension speaker enclosures which are each molded of a high density-low-density polymer combination, so that the low-density polymer can provide good sealing to adjacent surfaces. Preferably, neither ... | 06/02/1998 |
| 5729616 | Centering diaphragm According to the state of the art, most centering diaphragms (10) for loudspeakers are made of paper, plastic or textile material. These centering diaphragms (10) furthermore have plastic resin coatings. The attachment of the centering diaphragms (10) to ... | 03/17/1998 |
| 5714722 | Loudspeaker The present invention provides a loudspeaker including a case having an inner wall, a front opening, and an edge surrounding the front opening. A diaphragm including a substantially planar front surface, a rear surface, and a periphery is attached to the ... | 02/03/1998 |
| 5689093 | Cone of a speaker The cone of a speaker which has fibers perpendicularly fastened thereto by an electrostatic fiber implanting apparatus to eliminate the reflection of transverse waves between the diaphragm and the peripheral flange of the cone.... | 11/18/1997 |
| 5682021 | Howling phenomena removing apparatus for video display appliances The present invention relates to an apparatus that removes howling phenomena in a video display appliance capable of absorbing and damping vibrations arising from the output of a loudspeaker to remove the howling phenomena produced by the transfer of the ... | 10/28/1997 |
| 5619019 | Damper for loudspeaker A damper for a loudspeaker has an improved linearity of the amount of strain caused by the vibrational energy to vibrational energy exerted on the damper to enable the loudspeaker to reproduce sounds in a high fidelity. The damper is formed such that the ... | 04/08/1997 |
| 5432758 | Electroacoustic transducer An electroacoustic transducer having a diaphragm and a magnetic driving portion respectively housed in a housing wherein the magnetic driving portion vibrates the diaphragm magnetically in response to an electric signal. A base member for closing an openi... | 07/11/1995 |
