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7639826 |
Bending wave panel loudspeaker
From one aspect, the invention is a method of making a bending wave panel loudspeaker, comprising rigidly coupling a lever to a panel edge or marginal portion such that the lever extends at an...
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7636447 |
Acoustic bracket system
An acoustic bracket system comprising a bracket section containing an insert holder; coupling means connectable to the bracket section; and an insert securable to the insert holder and adapted to...
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7620190 |
Device for actuating a membrane and a vehicle comprising a device for actuating a membrane
The invention refers to a device ( 3 ) for actuating a membrane arranged in an opening to a space, and a vehicle having such a device. The membrane ( 1 ) has a first surface ( 1 ′) and a second...
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7620193 |
Acoustic actuators
An acoustic transducer comprises an active element which changes in length along a first axis in response to an audiofrequency input signal, the element being mounted between an inertial mass and a...
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7596235 |
Transducer
Improved transducer for reproducing and/or recording sound, comprising a membrane onto which is provided a one-piece or multipart piezo-electric element, characterized in that the membrane is...
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7583812 |
Electro-acoustic converter and electronic device using the same
In an electro-acoustic converter, a frame is bonded to the magnetic circuit, and the diaphragm is bonded to a circumferential edge of the frame. The voice coil is attached to the diaphragm and a...
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7570771 |
Loudspeakers
A loudspeaker comprising a bending wave panel-form acoustic radiator having a first portion and at least one further portion a transducer for exciting bending waves in the radiator, the transducer...
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7564984 |
Acoustic device
A bending wave loudspeaker having an operating frequency range and a coincidence frequency which is above the operating frequency range, comprising a resonant panel having two generally orthogonal...
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RE40860 |
Electrostatic audio loudspeakers
An electrostatic transducer, such as a loudspeaker or microphone, comprises a multi-layer panel ( 1 ) incorporating an electrically insulating middle layer ( 2 ) sandwiched between first and second...
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7555133 |
Electro-acoustic transducer
An electro-acoustic transducer includes a first electro-acoustic transduction unit. The first electro-acoustic transduction unit includes an acoustic radiation plate which radiates a sound wave, a...
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7545948 |
Loudspeaker
This invention discloses a loudspeaker 100 that includes a casing 110 , a drive assembly 111 with a magnetic core 112 , and an induction (voice) coil 113 attached to a first rigid plate ...
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7475598 |
Electromechanical force transducer
An electromechanical force transducer comprises at least two adjacent resonant elements and a damping layer coupled between their adjacent faces. The damping layer is selected so that the output is...
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7450729 |
Low-profile transducer
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...
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7447322 |
Speaker having a transparent panel
A speaker having a transparent sound panel and an exciter connected to the transparent sound panel for converting electrical energy received by the exciter, into vibrations that are transmitted to...
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7412065 |
Acoustic transducer with folded diaphragm
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...
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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...
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7388619 |
Mobile device with a combination camera and loudspeaker
A combination camera and loudspeaker is described herein. The combination camera and loudspeaker includes a lens for selectively manipulating an image and a loudspeaker assembly disposed proximate...
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7382890 |
Sound reproduction device and portable terminal apparatus
A sound reproduction device includes an LCD 20, which is an exemplary front panel, a case 22, and an electromechanical acoustic transducer 23. The LCD 20 is operable to perform a...
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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...
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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 )...
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7352874 |
Apparatus for acoustically improving an environment and related method
The invention provides an apparatus and related method for acoustically improving an environment. In an embodiment of the invention, an apparatus comprises a partitioning means in the form of a...
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7336795 |
Card sound device and electronic apparatus having same
A card-type sound apparatus has, on a card-shaped substrate, a combination of a sound signal input portion to which a sound signal is input from outside and a sound generation portion that...
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7336793 |
Loudspeaker system for virtual sound synthesis
A sound system obtains a desired sound field from an array of sound sources arranged on a panel. The desired sound field allows a listener to perceive the sound as if the sound were coming from a...
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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...
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7319766 |
In-wall loudspeaker
An improved in-wall speaker assembly providing better performance and less intrusion than prior art speakers. The speaker assembly is oriented such that the driver fires vertically, parallel to the...
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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...
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7302068 |
Loudspeaker
A loudspeaker for audible sound is described having a sound emitting element mounted onto a support structure and at least one actuator adapted to rotate said sound emitting element around a hinge...
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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...
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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 32 A thin and long in the direction X is provided on...
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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...
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7263196 |
Mobile communications terminal with flat loudspeaker disposed in the terminal housing
A mobile communications terminal is provided which is designed to transmit speech signals and to receive and reproduce speech signals, and which has a speech-reproduction device, wherein improved...
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7245729 |
Loudspeaker
A loudspeaker includes a box-form structure made from stiff lightweight sheet material to define a plurality of faces, at least one face of the structure forming a panel-form bending wave acoustic...
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7236602 |
Device for actuating a membrane and a vehicle comprising a device for actuating a membrane
A device is provided for actuating a membrane arranged in an opening to a space, and a vehicle having such a device. The membrane has a first surface and a second opposite surface, and is limited...
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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...
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7218745 |
Headliner transducer covers
A vehicle headliner includes electromagnetic drivers for sonically driving a member or a layer of the headliner. A foam beam is shaped around a driver transducer connection area that holds one or...
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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...
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7187776 |
Planar loudspeaker
The invention relates to a planar loudspeaker comprising a light, thin soundboard ( 2 ) which may be energized to produce multiply-reflected bending waves, a surrounding frame ( 3 ) holding the...
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7174024 |
Flat acoustic conversion device
A flat acoustic conversion device includes two magnets disposed so that their magnetic poles face upward arid are adjacent to or in contact with one another, and the magnetic pole faces of...
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7174025 |
Resonant panel-form loudspeaker
A loudspeaker assembly comprising a visual display screen, a resonant panel-form member positioned adjacent to the display screen, and a vibration exciter to cause the panel-form member to resonate...
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7155021 |
Loudspeaker having an acoustic panel and an electrical driver
A panel-shaped loudspeaker comprising a panel ( 1 ) having a first main surface ( 1 A) and a second main surface ( 1 B) parallel to the first main surface and further comprising an exciter ( 3 )...
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7151837 |
Loudspeaker
A bending wave loudspeaker includes a transparent acoustic radiator capable of supporting bending wave vibration and an electromechanical force transducer mounted to the acoustic radiator to excite...
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7149318 |
Resonant element transducer
A transducer ( 14 ) for producing a force which excites an acoustic radiator, e.g. a panel ( 12 ) to produce an acoustic output. The transducer ( 14 ) has an intended operative frequency range and...
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7120264 |
Sound reproducing apparatus
A sound reproducing apparatus includes a display unit, a board 22 , a diaphragm panel 23 , and an electroacoustic transducer 26 . The display unit displays an image on a display surface. The...
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7120263 |
Bending wave acoustic radiator
A bending wave panel-form acoustic radiator formed from sheet material to define an acoustically active area and having at least one integral stiffening member in the form of a corrugation...
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7116796 |
Diaphragm transducer
A new type of diaphragm transducer comprising magnets to provide magnetic field strength in a planar region and a planar diaphragm located in the said planar region. The diaphragm has a plurality...
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7110561 |
Transparent panel-form loudspeaker
A transparent panel-form loudspeaker consists of a transparent sound radiation panel that can radiate sound with desired pressure level over a specific frequency range when subjected to the...
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7103190 |
Acoustic device
An acoustic device has a suspended sheet of a thin flexible material having a rigid rod secured along one edge. An audio frequency actuator, which is preferably a magnetostrictive actuator, is...
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7095863 |
Panel form loudspeaker
A panel form loudspeaker comprises a resonant multi-mode radiator ( 11 ) which in turn comprises a plurality of substantially concentric sub-panels ( 20, 21, 22, 23 ). A plurality of analogue...
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7095864 |
Electrostatic audio loudspeakers
An electrostatic transducer, such as a loudspeaker or microphone, comprises a multi-layer panel ( 1 ) incorporating an electrically insulating middle layer ( 2 ) sandwiched between first and second...
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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...
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