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| Number | Title | Issue Date |
| 8135165 | Diaphragm and loudspeaker unit using the same A diaphragm, and a loudspeaker unit using the same, capable of providing better low-tone characteristics than conventional ones. A loudspeaker unit includes a base frame and a cover plate joined to each other to provide a flat casing. Arranged in the casing are a di... | 03/13/2012 |
| 8126189 | Multi-directional flat speaker device A multi-directional flat speaker device is disclosed. By the directional characteristics of a plurality of flat speakers of the flat speaker device, accompanying with mechanism to actuate each of the plurality of flat speakers independently rotating to its desired d... | 02/28/2012 |
| 8116512 | Planar speaker driver A planar magnetic driver includes covering plates that are maintained under tension to form a buckled or curved surface, thereby providing for a larger magnetic gap, and allowing for a larger excursion of the diaphragm and extended lower frequency response. Another ... | 02/14/2012 |
| 8085971 | 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 ... | 12/27/2011 |
| 8041072 | Audio output apparatus and method An audio output apparatus for converting an input audio signal into audio and outputting the audio includes a first oscillation enhancing panel for outputting the audio as a result of being oscillated; a second oscillation enhancing panel for outputting the audio as... | 10/18/2011 |
| 8031902 | Loudspeaker A loudspeaker comprises a diaphragm, an edge operable to support, on a frame, the diaphragm in such a manner that enables vibration thereof, and a voice coil operable to generate a driving force. The voice coil is of an approximate rectangular shape, and a length of... | 10/04/2011 |
| 7978873 | Devices for displaying modal patterns The present invention provides an acoustic display device for displaying modal patterns in response to sound from a sound source. The display device (10) has a substantially circular housing (12), which housing (12) includes a continuous curved ... | 07/12/2011 |
| 7965857 | Loudspeaker A loudspeaker comprising a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a ... | 06/21/2011 |
| 7929726 | Planar diaphragm acoustic loudspeaker A planar diaphragm acoustic loudspeaker having a planar diaphragm biased with a high magnetic flux density magnetic circuit which feeds an acoustic waveguide. The apparatus provides high fidelity and efficient acoustic reproduction of high frequency alternating curr... | 04/19/2011 |
| 7912241 | Field serviceable planar loudspeaker A push-pull magnetic-planar acoustic transducer provides easy field replacement of a diaphragm. Push-pull magnetic-planar acoustic transducers are known for the relative vulnerability of their diaphragms to damage. Replacement of the transducers in the field as been... | 03/22/2011 |
| 7792319 | Flat panel speaker, electronic device having same, and structure and method ford mounting same A structure and method for mounting a flat panel speaker are provided which are capable of reliably and accurately positioning a diaphragm in a cabinet and of improving an acoustic characteristic of the flat panel speaker. At least one first protruding portion forme... | 09/07/2010 |
| 7561713 | Electro-acoustic device for creating patterns of particulate matter An electro-acoustic device for creating patterns of particulate matter comprises a housing (2) one end of which is closed and the other end of which is open, a diaphragm (10) extending across the housing (2) at or adjacent the open end of the ho... | 07/14/2009 |
| 7403628 | Transducer assembly and loudspeaker including rheological material A transducer assembly includes a transducer and a coupler with rheological material. A loudspeaker further includes an acoustic radiator. The coupler is mounted to the transducer and is operatively connected to the acoustic radiator. The transducer excites bending w... | 07/22/2008 |
| 7391879 | Loudspeaker An inventive loudspeaker includes a diaphragm, a first excitation means for generating structure-borne sound in the diaphragm, and a second excitation means, different from the first one, for setting the diaphragm into a longitudinal vibrational motion in a directio... | 06/24/2008 |
| 7376240 | Coil for an electroacoustic transducer An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween, the magnetic circuit comprising a magnet inducing a magnetic field in the gap, the magnet having a surface ... | 05/20/2008 |
| 7372968 | Loudspeaker driver An inertial exciter (40) for an acoustic radiator (42), and a loudspeaker incorporating an acoustic radiator and such an exciter. The exciter has a massive member (44); a coupler (56) adapted for attachment to the acoustic radiator (42... | 05/13/2008 |
| 7360626 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 04/22/2008 |
| 7333620 | Acoustic transducer with mechanical balancing One embodiment of a low-profile transducer includes a at least one fin perpendicularly mounted on a planar diaphragm, with a voice coil mounted onto the fin. The voice coil may reside in a strong uniform magnetic field. The locations at which the diaphragm is connec... | 02/19/2008 |
| 7316290 | Acoustic lens system A loudspeaker includes a frame, a magnet coupled to the frame and a diaphragm secured to the frame. An acoustic lens may be positioned in front of the diaphragm. An aperture extends through the acoustic lens. The acoustical directivity pattern of the loudspeaker may... | 01/08/2008 |
| 7315627 | Sound-damping laminate for loudspeaker structure A sound-damping structure is provided for use as part of a sound-directing component of a loudspeaker. The structure includes a first structural layer, a second structural layer, and a core layer enclosed between the first and second structural layers. The first and... | 01/01/2008 |
| 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 |
| 7302077 | Electromagnetic driver for a planar diaphragm loudspeaker The invention relates to an electromagnetic driver comprising a soft magnetic core in the form of an E with three legs and a back, an alternating field driver, magnetically coupled to the soft magnetic core, for generating an alternating magnetic field in the soft m... | 11/27/2007 |
| 7283637 | Exciting device An exciting device capable of producing sound by sound-producing vibration body of a main body of an apparatus is provided. An exciting member 32A thin and long in the direction X is provided on a vibration substrate 31 thin and long in the direction X... | 10/16/2007 |
| 7283636 | Planar speaker The present invention provides a planer acoustic transducer including a vibrating diaphragm including a spiral voice coil provided on both surfaces or on one surface of an insulating base film; and a permanent magnet corresponding to the voice coil, wherein, in the ... | 10/16/2007 |
| 7278200 | Method of tensioning a diaphragm for an electro-dynamic loudspeaker Electro-dynamic loudspeakers typically include a diaphragm having a conductor applied to one of its surfaces. The diaphragm is secured to a frame. The conductor is connected to a power supply for providing electrical current through linear traces of the conductor th... | 10/09/2007 |
| 7254248 | One-magnet rectangular transducer An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap there between, the magnetic circuit comprising one magnet. The magnet can either be positioned in the center of the magne... | 08/07/2007 |
| 7251342 | Single end planar magnetic speaker A single end planar magnetic speaker system having at least one thin film, flexible diaphragm (72, 90) having a front side and a rear side for converting an input electrical signal into a corresponding acoustic output, the at least one diaphragm including a p... | 07/31/2007 |
| 7242788 | Securing magnets in high-efficiency planar magnetic transducers In an audio system, cyanoacrylate adhesive can reliably hold neodymium magnets to a stator for a planar magnetic transducer when the transducer generates high output. In one implementation, the planar magnetic transducer can include multiple neodymium magnets aligne... | 07/10/2007 |
| 7236601 | Panel loudspeaker The invention relates to so-called panel loudspeakers (11) working according to the multiresonance principle. Said loudspeakers are generally formed by a core layer (13) and at least one outer layer (14.o, 14.u). The outer l... | 06/26/2007 |
| 7231058 | Electroacoustic transducer and electronic apparatus In an electroacoustic transducer of the present invention, a casing supports a diaphragm, a drive coil is provided on the diaphragm, a first magnetic structure has a first space in a center thereof provided within the casing such that a center axis penetrates the fi... | 06/12/2007 |
| 7225895 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 06/05/2007 |
| 7218749 | Method for sound reproduction and pillar loudspeaker The invention relates to a method for sound reproduction and a loudspeaker, in which a vibrating diaphragm controlled by an operating device produces sound in the air surrounding it on the first side, and in which acoustic feedback is prevented by preventing the pas... | 05/15/2007 |
| 7218743 | Speaker module and apparatus using this A speaker module includes a first diaphragm and a second diaphragm acoustically coupled with each other as a part of a wall forming a hermetic space with a panel. A light emitting section emits light to the panel, and the panel transmits the light to a side of the s... | 05/15/2007 |
| 7212648 | Loudspeaker system in which a diaphragm panel is driven by an electromechanical acoustic converter A sound-driving loudspeaker system is achieved with a simple structure and is capable of easily improving acoustic characteristics. The loudspeaker system emits sound by driving a diaphragm panel by an electromechanical acoustic transducer. The loudspeaker system in... | 05/01/2007 |
| 7212641 | Electromechanical acoustic liner A multi-resonator-based system responsive to acoustic waves includes at least two resonators, each including a bottom plate, side walls secured to the bottom plate, and a top plate disposed on top of the side walls. The top plate includes an orifice so that a portio... | 05/01/2007 |
| 7203332 | Magnet arrangement for loudspeaker An electro-dynamic loudspeaker includes a frame, a plurality of magnets and a diaphragm. The frame includes a molded plastic body. The magnets may be molded into the frame in a determined configuration. The frame is mechanically coupled to the diaphragm such that th... | 04/10/2007 |
| 7194099 | Handheld electronics devices with multiple user sensory transducers and methods An electronics device (100), for example, a cellular telephone, includes a plurality of discrete transducers, one of which is a dynamic loudspeaker device (162) and the other being a linear vibrating device (164). In another embodiment, two or m... | 03/20/2007 |
| 7194098 | 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 of orderly d... | 03/20/2007 |
| 7185735 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 03/06/2007 |
| 7187654 | Rate-controlled optical burst switching A method and apparatus are provided for low latency loss-free burst switching. Burst schedules are initiated by controllers of bufferless core nodes and distributed to respective edge nodes. In a composite-star network, the burst schedules are initiated by any of a ... | 03/06/2007 |
