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7392880 Dual range horn with acoustic crossover  
A new approach has been developed to combine mid-range and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between...
7299893 Loudspeaker horn and method for controlling grating lobes in a line array of acoustic sources  
A loudspeaker horn ( 11 ) having a throat end ( 13 ) for receiving acoustic power from aligned acoustic power sources ( 41, 43, 45 ), an elongated throat ( 33 ), and a flared section ( 17 ) is...
7275621 Skew horn for a loudspeaker  
A horn including a substantially flat coupling flange defining a coupling flange plane, a substantially planar mouth defining a mouth plane, an elongated throat extending between the coupling...
7203329 Audio speaker system employing an axi-symmetrical horn with wide dispersion angle characteristics over an extended frequency range  
A speaker system includes a speaker driver loaded by a horn waveguide. The speaker driver reproduces sound within an extended frequency range that includes a high frequency band between 8 kHz and...
7072481 Two-stage phasing plug system in a compression driver  
This invention provides a two-stage phasing plug located within a compression driver. The two-stage phasing plug housed within the compression driver may be coupled to a horn. The two-stage phasing...
6668969 Manifold for a horn loudspeaker and method  
A manifold for a horn loudspeaker has an input end having at least one input port for receiving acoustic power from at least one acoustic driver, and an output end for delivering acoustic power to...
6591938 Speaker diaphragm  
The speaker diaphragm of the present invention includes a nonwoven fabric impregnated with at least a thermosetting resin composition, molded, and cured. The nonwoven fabric is formed of a fiber...
6574344 Directional horn speaker system  
A directional speaker system includes an enclosure having an inner surface, an outer surface, an open end, and a closed end, a speaker driver directed toward the open end and mounted near the...
6513622 Full-range loudspeaker system for cinema screen  
A full-frequency-range cinema loudspeaker system intended or deployment in limited space behind a perforated cinema screen is configured as three modules: (1) a high-frequency module having a...
6516076 Modular horn loudspeaker  
A modular horn loudspeaker principally intended for use on emergency vehicles consists of three coaxially aligned cup-shaped parts, a sound chamber, a cover fitted to the sound chamber and a...
6502662 Speaker having a hemispherical vibrator  
A speaker includes a disk-shaped base. A substantially hemispherical surface vibrator is fitted into a substantially circular groove provided in the base and bonded therein. Terminals are attached...
6394223 Loudspeaker with differential energy distribution in vertical and horizontal planes  
A loudspeaker horn, loudspeaker and a loudspeaker system wherein at least one loudspeaker includes a horn composed of a waveguide, a plurality of throats acoustically coupled to a single waveguide...
6334505 Optimum edges for speakers and musical instruments  
The invention presents a design of optimum edges for antennas of loudspeakers, microphones, hydro-speakers, hydro-phones, brass and wind instruments, and ultrasonic transducers. These edges have a...
6064745 Compression driver phase plug  
A phase plug for a horn loaded speaker has a frustro-conical body with a spherical entrance end and a planer outlet end. The plug is formed with radial channels. The entrance of the phase plug and...
6059069 Loudspeaker waveguide design  
A loudspeaker horn has straight wall section and a curved wall section. The straight wall section has diverging walls defining a coverage angle and the curved wall portion is connected to the...
5991421 Radially expanding multiple flat-surfaced waveguide device  
The present invention is a waveguide for an acoustic speaker having a predetermined cone weight. The waveguide body has a speaker end and an open end and an even number of segments with a flat...
5802196 Speaker for radiating sound waves in all directions relative to a speaker supporting surface  
A speaker is adapted to transmit sound waves in an omni-directional manner relative to an installation surface upon which the speaker is mounted. The speaker includes an oscillator having a...
5778084 Loudspeaker with phase correction  
The invention concerns a loudspeaker with a diaphragm which is electromagnetically induced to vibrate and is made of a central dome-shaped part and a conical part surrounding the latter, and a...
5420563 Motor-vehicle horn  
The horn includes a support casing (1 to 3) in which the peripheries of two facing diaphragms (10, 11) are restrained, a chamber (12) of variable volume being defined between the diaphragms (10,...
5351220 Moving-coil electrodynamic electroacoustical transducer  
The present invention involves a moving-coil electrodynamic electroacoustical transducer, comprising a disk made of a hard, nonmagnetic material (12), which is superimposed on the diaphragm (11)...
5296656 Sound collecting and concentrating device for attaching to the back of multiple loudspeakers  
A loudspeaker system and a loudspeaker housing system uses a plurality of smaller rated loudspeakers to generate a high-level output. Specifically, the plurality of loudspeakers are housed in a...
5285025 Loudspeaker horn  
A speaker horn including a first and a second pair of side walls. The first pair of side walls has a first section and a second section between first and second ends, and the second pair of side...
5261006 Loudspeaker system comprising a helmholtz resonator coupled to an acoustic tube  
A loudspeaker system includes a housing (1) having therein at least one loudspeaker (3) which divides the volume of the housing into two parts (V 1 , V 2 ). The first volume (V 1 ) is coupled, via...
5218337 Automotive vehicle tone generator  
A transducer and tone generator embodying the same and method of assembling the transducer components with the use of an assembly fixture. The transducer components include a rigid annular...
5187333 Coiled exponential bass/midrange/high frequency horn loudspeaker  
Coiled exponential bass/midrange/high frequency horn loudspeakers which are characterized by a rigid cabinet of selected size having a sealed air chamber in the base thereof for receiving a low...
5181301 Method of making a very compact audio warning system  
A vehicle warning system (1) is disclosed. The device includes a main housing (2) to which is attached a sound generator (7), a lighting system (4), a mounting bracket (4) which is used to attach...
5163167 Sound wave guide  
A wave guide fitted at the output of a loudspeaker, in front of the membrane or in front of the orifice of a compression chamber, along the axis of the transducer being considered, and comprising a...
5117463 Speaker system having directivity  
A speaker system comprises an acoustic panel. The acoustic panel is constructed of a plurality of thin plate-like sound absorbing panels provided close to the loudspeaker and arranged such that...
5117462 Phasing plug for compression driver  
An improved compression driver has a phasing plug with air passages coupling the compression region of the loudspeaker to the throat of the loudspeaker. An auxiliary air passage combines with a...
5103482 Apparatus and method for reproducing high fidelity sound  
A horn-equipped loudspeaker is provided which has an electro-acoustic transducer to convert electrical signals into acoustical signals, a coil with input terminals for receiving the electrical...
5078074 Vehicle horn  
A vehicle horn has a shield which covers the mouth of the horn's bell to prevent debris from entering the bell. A front sound opening beyond the bell mouth perimeter allows sound to project...
4975965 Loudspeaker design  
A loudspeaker including a diaphragm for generating sound waves, the diaphragm being comprised of a peripheral conical portion adjacent to and surrounding a central domed portion, a flared horn...
4965837 Environmentally resistant loudspeaker  
A grille is attached to a woofer, and a tweeter is further mounted on the grille to mutually face the woofer and be at least partially disposed in a cavity defined by the woofer and grille to...
4930596 Loudspeaker system  
A loudspeaker system which comprises a loudspeaker unit for radiating a first sound, a horn unit having a throat coupled to the back of the loudspeaker for radiating a second sound, and an acoustic...
4893695 Speaker system  
A speaker system which has a speaker unit with a diaphragm and an acoustic path provided on the front side of the diaphragm so as to guide sound waves emitted from the diaphragm. The acoustic path...
4893343 Dual diverging manifold loudspeaker system  
A dual diverging manifold loudspeaker system includes a generally cubically-shaped outer horn housing and an inner dome-like cap member for encapsulating therebetween a compression driver assembly....
4889208 Speaker enclosures  
A speaker enclosure assembly is disclosed, which comprises an enclosure provided with a baffle plate, to which a speaker unit is attached, characterized in that the enclosure is provided with a...
4865159 Acoustic horn and attachment device  
Disclosed is an acoustic horn to aid in bulk powdered material handling particularly from trucks and railroad cars. Such acoustic horn is comprised of an external cone having a driver affix...
4860367 Low frequency loud speaker  
A low frequency loud speaker is disclosed for use in a room at the intersection of two, mutually perpendicular planes, such as a ceiling and a wall, a floor and a wall or two walls. The speaker has...
4853964 Electroacoustic apparatus for reproducing lowest to medium frequencies  
Electroacoustic apparatus for reproducing lowest to medium frequencies being provided with a housing wherein a folded exponential horn combined with a loudspeaker is defined having five horn...
4850452 Loudspeaker structure  
One or more up-firing woofer loudspeakers (12 or 22) are mounted atop a truncated pyramidal enclosure (1 or 21). A down-firing tweeter (5 or 25) is aligned above the woofer. A sound-reflecting...
4836327 Sound reinforcement enclosure employing cone loudspeaker with annular central loading member and coaxially mounted compression driver  
An improved sound reinforcement enclosure is disclosed which incorporates a cone-type loudspeaker operating into a generally cylindrical channel extending from the perimeter of the cone to free...
4823110 Tone generator with improved diaphragm mounting  
A tone generator of the type in which a housing defines a pair of communicating chambers one of which is closed except for an area of communication with the other chamber. A thin flat diaphragm of...
4811816 Symmetric double phonic diaphragm volume-enhancing device  
A device having two sets of oppositely facing corresponding resonance cavities; i.e., an upper and a lower resonance cavity. Each of the resonance cavities include a piezo-electric type diaphragm...
4808202 Adsorptive fiber sheet  
An adsorptive fiber sheet where a nonwoven fabric of synthetic fiber constituted only by synthetic fiber having a higher melting temperature is secured in a layered structure to at least one...
4790408 Coiled exponential bass/midrange horn loudspeakers  
Coiled Exponential Bass Midrange Horn Loudspeakers which are each characterized by a rigid cabinet of selected size having a sealed air chamber in the base thereof for receiving a low frequency...
4776428 Sound projection system  
A sound projection system for use in diffusing sound of a frequency ranging from 160 Hz up to 5 KHz over a relatively long distance with a substantially constant distribution of the sound over a...
4718517 Loudspeaker and acoustic transformer therefor  
A speaker system including a frusto-conical diaphragm, and a phase plug mounted within the volume formed by the diaphragm, the phase plug including a pair of substantially diametric open slots...
4628155 Electroacoustic motor for horns  
An electroacoustic motor for association with a horn comprising, in combination, a direct radiation speaker including a chassis, the speaker including a movable diaphragm, an acoustic wave...
RE32183 Sound projection system  
A sound projection system comprising means defining a longitudinally extending acoustic channel which is acoustically open at a front end of the channel and acoustically closed at a rear end and at...
Matches 1 - 50 out of 98 1 2 >