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7460679 |
Flat panel speaker system with a coated diaphragm
A speaker system having a structure in which the room surrounding the first diaphragm and the room adjacent to the second diaphragm are acoustically coupled. The second diaphragm has coating on a...
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7418109 |
Diaphragm structure of light sound converter
A diaphragm ( 1 ) of a light sound converter which has a high performance, is suitable for mass-production and has a slit ( 1 s ) formed therein. A light emitting element and a light receiving...
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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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6963650 |
Coaxial speaker with step-down ledge to eliminate sound wave distortions and time delay
A coaxial speaker assembly ( 10 ) with reduced sound distortion, sound time delay, and polar response distortion. The coaxial speaker assembly ( 10 ) includes a high-frequency speaker system ( 16 )...
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6888946 |
High frequency loudspeaker
A tweeter with a light, thin sandwich plate which can be excited into multiple reflected bending waves, and a driver which makes a vibrating contact and excites the sandwich plate, where the driver...
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6834113 |
Loudspeaker system
A loudspeaker system, which has the ability to create a homogeneous sound over large distances, comprising at least one line-source of acoustical radiation, each comprising three or more...
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6804371 |
Speaker having a laser vibration diaphragm
A speaker includes a housing having a diffusion opening provided with a laser vibration diaphragm. The laser vibration diaphragm has reflective spatial patterns, so that the speaker may present...
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6778675 |
Speaker device
In a speaker device including a plurality of speakers outputting different frequency bands, for a listener listening to sound from the speaker device, a first emitting direction of a first speaker...
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6535612 |
Electroacoustic transducer with diaphragm securing structure and method
An electroacoustic transducer which has at least one stator member with an operating surface and a suspended emitter diaphragm spaced from the operating surface of the stator member to enable the...
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6466676 |
Compound driver for acoustical applications
A compound driver acoustic transducer. A frame supports a motion generator to one side of two diaphragms. An intermediate diaphragm is continuous and is driven by the motion generator. The...
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6445803 |
Speaker
The present invention relates to an improved speaker which includes at least one radiating surface configured to vibrate to produce sound waves, and an existing speaker cone configured to vibrate...
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6351542 |
Loudspeakers with panel-form acoustic radiating elements
A loudspeaker ( 81 ) comprises an enclosure, an acoustic radiator ( 2 ) in the enclosure, a compliant suspension ( 3 ) mounting the radiator in the enclosure for pistonic movement relative thereto,...
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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...
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6097821 |
Electrostatic capacitance type transducer
In an electrostatic capacitance type transducer which has a substrate, a movable electrode confrontingly placed to the substrate in a movable manner through a space, a fixed electrode arranged on a...
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6095278 |
Base for holding the tweeter of a speaker
A speaker base, which includes a tweeter holder having a holder base and a bottom mounting holder rod, and withholding ring mounted on the tweeter holder to hold a tweeter, wherein the tweeter...
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5295194 |
Multi-driver loudspeaker assembly
A multi-driver, coaxially mounted loudspeaker array utilizing a high frequency bi-morph driving element (tweeter) that is preferably contained within the air-core of the voice coil former of a...
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5245669 |
Electroacoustic transducer
The invention relates to an improved piezoelectric loudspeaker for high frequency, more commonly known as a tweeter. The invention embraces a technological improvement which permits the size of the...
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5181253 |
Loudspeaker assembly
In a loudspeaker having a yoke assembly including a top plate and a yoke fixedly attached to opposite sides of a magnet to form an air gap between the plate and the yoke into which a voice coil...
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5180785 |
Diaphragm and method for producing same
A diaphragm formed of a material for molding mainly composed of a uniform mixture of an ultra-high molecular weight polyolefin with a high melting viscosity and a polyolefin with a lower melting...
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5153915 |
Speaker filtering circuit and support therefor
A coaxial speaker system having a high frequency component and a low frequency component is provided with a filtering circuit having an inductance coil securely mounted upon a magnet of the coaxial...
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5150417 |
Bass reflex type speaker system
A bass reflex speaker system with a ducted port which can be made without coloration in the mid frequency band of the speaker caused by standing wave resonances in the duct. The system includes one...
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5115882 |
Omnidirectional dispersion system for multiway loudspeakers
A sound dispersing system using two or more vertically facing drivers in substantially coaxial alignment on a vertical axis. The drivers face conic reflectors which reflect sound radially over 360...
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5098976 |
Acoustic material
This invention provides an acoustic material having high elastic modulus and large internal loss by subjecting a high-modulus stretched polyethylene containing paraffin wax to plasma treatment....
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5073945 |
Loudspeaker system
An improved dipole type characteristic loudspeaker system has a pair of loudspeakers (1 and 2) which are mounted on the front baffle board (4) and the back baffle board (5) of a console (3) and are...
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5062139 |
Coaxial loud speaker system
A multi-driver, coaxially mounted loud speaker array utilizing a high frequency bi-morph driving element that is totally contained within the hollow core of the voice coil former of a lower...
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5022488 |
Transducer enclosure
An enclosure (10) for mounting two transducers (12, 14) includes a wall (20, 22) defining an enclosure (10) interior. The enclosure (10) also includes a wall (54 and/or 56) for dividing the...
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4965839 |
Electro acoustic transducer and loudspeaker
A loudspeaker transducer has a coil (5) and a metal dome (11) with a skirt (13) arranged concentrically in a magnetic gap between pol pieces (2 and 4). The skirt (13) is inductively coupled to the...
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4940108 |
Open line source speaker system
An open line source speaker system includes a first columnar cabinet enclosing a plurality of midrange or woofer speakers arranged in the cabinet in a vertical line and a second columnar cabinet...
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4899390 |
Thin speaker having an enclosure within an open portion and a closed portion
A speaker which is thin but which is capable of providing high-fidelity reproduction and ensuring a suitable level of sound pressure even when it is brought close to a wall. A closed chamber is...
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4829581 |
Electrodynamic transducer comprising a two-part diaphragm
An electrodynamic transducer (1) comprises a diaphragm with a central part (2) and a peripheral part (3) and a voice-coil device (9, 10) coupled to the central part (2). The diaphragm (2, 3)...
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4821330 |
Wide-band loudspeaker having a diaphragm area divided into sub-areas for various frequency ranges
The invention relates to a wide-band loudspeaker in which the overall diaphragm is divided into an inner and an outer diaphragm sub-area. The inner diaphragm sub-area preferably consists of a...
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4821323 |
Stereo headphone
A stereo headphone has a generally "U"-shaped head band provided with a pair of head band support rails at opposite ends thereof. End portions of the head band are received for sliding extension...
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4764968 |
Disk diaphragm for a loudspeaker
The disklike diaphragm is made up of an essentially conical plastic film provided with vacuum-formed supporting members which extend up to the disklike radiating layer.
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4761817 |
Diaphragm structure for a transducer
A diaphragm for an acoustical transducer comprises a support and a separate cover for the support. The support is constructed from a relatively more rigid material having the desired physical...
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4727586 |
High fidelity speaker system and assembly
A speaker system and assembly achieves a high fidelity sound reproduction by causing acoustical waves emanating from juxtaposed and co-axially positioned first and second speakers, which produce...
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4726068 |
Boom mounted microphone and connector
A boom mounted microphone includes a boom mounted plug and connectors for connection to and supporting a microphone disposed in a two part housing that is divided into a socket for receiving said...
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4706295 |
Coaxial loudspeaker system
A coaxial loudspeaker system is described wherein the high frequency horn which lies within the lower frequency speaker or cone, is constructed to avoid the "shadow effect" wherein there is a large...
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4477699 |
Mechanical two-way loudspeaker
A mechanical two way loudspeaker includes a low frequency diaphragm arranged coaxially with one another which are driven by the same voice coil. In order to flatten the sound pressure versus...
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4475014 |
Acoustical transducer
A bimorph bender acoustical transducer driver or motor element in which no center vane is necessary. Elimination of the vane reduces the dynamic mass of the driver so that a thicker, more rugged...
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4332986 |
Speaker system employing passive radiator
A passive radiator, which may be a cone-type radiator is employed in a speaker system enclosure facing downwardly in the direction of the floor upon which the enclosure rests. The bottom wall...
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3962544 |
Sound reproducing devices
A sound reproducing device comprising a first (low frequency) speaker and a second (high frequency) speaker, the high frequency speaker mounted within its own housing which allows rear-cone...
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3044570 |
Loudspeakers
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2815823 |
Loudspeaker structure
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