Matches 51 - 100 out of 215 < 1 2 3 4 5 >
Match Document Document Title
5784473 Sound system  
This disclosure relates to a sound system that provides high quality sound notwithstanding extreme background noise. Preferably implemented in amusement ride vehicles, such as roller coasters, the...
5764782 Acoustic reflector  
The surface of an acoustic reflector faces the source, and has a plurality (N) of wells, where N is an odd prime number. Each well has a depth D n =(n 2 rem N)* unit depth (0<=N<=N-1),...
5764783 Variable beamwidth transducer  
The invention comprises a device capable of emitting either acoustic or electromagnetic radiant energy. The device has at least one movable transducing element for producing this energy, and at...
5739480 Speaker base for alternatively mounting different drivers  
Either a tweeter or a woofer diffuser may alternatively be detachably secured to a driver holder of a speaker base through axial engagement of lugs carried by the holder with guide grooves formed...
5734728 Portable sound speaker system and driving circuit therefor  
A speaker system includes a vertically oriented elongated tube supported on a ground surface, and open at upper and lower ends thereof; a woofer, mid-range speaker and tweeter mounted at a lower...
5721401 Sub-woofer module  
Disclosed is a sub-woofer module which has a simple construction and provides a good low-frequency bass in compliance with an audience's taste. The sub-woofer module has an enclosure, a baffle...
5675131 Speaker system and the same for television sets  
As the front surface diaphragm of the speaker is provided with a first acoustic waveguide and the rear surface diaphragm is provided with a back cavity reflecting sound waves and a second acoustic...
5673329 Omni-directional loudspeaker system  
A loudspeaker system includes a flexible compressible tube having a woofer mounted at one end with its cone directed outward, and a vented baffle mounted at the other end. A first sound dispersion...
5637840 Miniaturized high power speaker  
A thin, compact, high power speaker for producing high volume sound alarm signals and for reproducing voice messages, and which may be installed in a limited space. The speaker of the invention...
5616892 Virtual imaging multiple transducer system  
In general, the invention comprises a device capable of emitting either acoustic or electromagnetic radiant energy. The device has at least two transducing elements for producing this energy, and...
5532438 Acoustic imaging sound dome  
An acoustic imaging sound apparatus includes an acoustically reflective dome for reflecting and focusing stereophonic sound waves from stereo speakers directed into the interior of the dome. The...
5525767 High-performance sound imaging system  
A sound imaging system preferably including two enclosures each comprising a truncated conical base unit and a truncated conical upper unit supported above and spaced apart from of the base unit,...
5485521 Audio mirror speaker  
In an audio mirror speaker, an uneven area is formed on a planar mirror surface and a directivity distribution is controlled by changing a relative position of a diaphragm facing the mirror surface...
5451726 Omnidirectional speaker system  
An omnidirectional speaker system includes woofer and tweeter speakers mounted in a concave, curved upper housing fabricated of a relatively hard shell exterior and a foam interior, preferably...
5446792 Reflection-type speaker apparatus  
A speaker apparatus includes a speaker having a diaphragm, a frame having a mouth and a reflector. The speaker is mounted inside a cylindrical box, and the frame is formed cylindrically and covers...
5418336 Sound output device  
A speaker unit includes a speaker housing having a lower portion and an upper portion. A drive unit is housed in the upper portion for producing and outputting sound, with the drive unit having a...
5306880 Omnidirectional speaker system  
An omnidirectional speaker system includes woofer and tweeter speakers mounted in a concave, curved upper fabricated of a relatively hard shell exterior and a foam interior, preferably plastic....
5298690 Sound distributor with symmetry of revolution  
The invention relates to a sound distributor with symmetry of revolution. The distributor comprises two sound reflecting cups, having a convex shape which is an exponential of surface revolution...
5274709 Speaker device for television receiver  
A speaker unit for a television receiver includes speakers SP L , SP R arranged at the back of a television screen surface, sound reflectors for reflecting the sound from the speakers...
5268538 Hemispherically wide-radiating-angle loudspeaker system  
A loudspeaker system having the ability to uniformly direct high-frequency as well as low-frequency sound hemispherically is described. The acoustical centers of a low-frequency and a...
5268539 Acoustic apparatus  
An acoustic apparatus adapted to be heard only by a specific person or persons in one space without being worn by the user as in the case of an earphone. Sounds issuing from the apparatus do not...
5266752 Reflex folded horn speaker enclosure  
A reflex folded horn loudspeaker enclosure system provides a compact speaker that can produce high quality sounds in all ranges. The system has at least one resonance air chamber that is in...
5258584 Multiple auxiliary compound driver loudspeaker system  
A compound driver loudspeaker system combines a single exterior radiating loudspeaker with a plurality of internal auxiliary loudspeakers in a cabinet. The cabinet has an external baffleboard and...
5250763 Acoustical equalization device system  
An acoustical equalization device is designed to be attached to the front of a stereo speaker and includes a plurality of moveable baffles which may be used to either reflect or absorb sound waves...
5229555 Speaker system and TV with the same  
In the speaker system, an acoustic pipe for conducting a sound wave is arranged in front of a speaker for reproducing a middle and low frequency sound. The acoustic pipe has a rectangular open end...
5227591 Loudspeaker arrangement  
The invention relates to a loudspeaker arrangement for creating a three-dimensional stereo sound effect. The loudspeaker arrangement is to be located at a suitable distance from sound-reflecting...
5220608 Method and means for stereophonic sound reproduction  
Monophonic sound is transformed into a stereo pattern by arranging two reflectors on a common axis at a predetermined distance from each other with both facing in the direction of the sound. One...
5216210 Loudspeaker system with passive sound reflective intensifier  
A loudspeaker system including a cabinet and at least one loudspeaker mounted on the cabinet which includes a movable speaker element for directing acoustical wave energy to the ambient atmosphere...
5216209 Loudspeaker system and method for disbursing sounds waves  
A loudspeaker system 10 and a method for disbursing sound waves are disclosed. The loudspeaker system 10 has a reflector screen 12 which is provided with a concave reflective surface 14. The...
5194700 Louver structure with movable slats for a loudspeaker box  
A loudspeaker cabinet has an annular frame mounted on its front face to support a multiplicity of louvers that are coupled together by a transversely extending coupling arm. The louvers can be...
5189706 Acoustic apparatus  
An acoustic apparatus comprises an inner cabinet, a vibrator mounted thereon and an outer cabinet. The inner cabinet and the outer cabinet constitute an acoustic cabinet having a closed cavity. The...
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...
5173942 Audio system operable in directional and non-directional modes  
An audio system includes a speaker unit having an opening in its front surface supporting a speaker and a diffuser with a reflecting surface detachably attached to the speaker unit and positioned...
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...
5105905 Co-linear loudspeaker system  
A speaker housing arrangement which uniquely combines a number of acoustic functions is disclosed in both a simple embodiment and in a more complex embodiment. Each embodiment utilizes a pair of...
5086871 Omnidirectional electro-accoustical chamber  
Omnidirectional electro-acoustical chamber comprising two transducers (4) for low/medium tones and (7) for shrill tones disposed coaxially with their membranes facing one another, the transducer...
5031220 Mobile stereo speaker set  
A mobile stereo speaker unit and assembly includes a central speaker for reproducing both left and right stereo sound channels. The central speaker is in a well in the central portion of the front...
4991688 Audio speaker system  
An audio speaker system includes a pair of satellite speakers each having a copper lined pyramidal enclosure formed by four side walls diverging outwardly upwardly from a downwardly facing apex. A...
4984653 Loudspeaker arrangement  
The invention relates to a loudspeaker arrangement in which, in front of the loudspeaker (5) or another sound source, when viewed in the direction of the sound projection, two, preferably plane,...
4979586 Acoustically shielded motorcycle helmet speaker enclosure  
An acoustically shielded speaker enclosure for use in the ear pockets of motorcycle helmets is disclosed wherein parasitic sound waves emitted from the rear side of an enclosed audio loudspeaker...
4967872 Loud speaker system  
A sound diffuser assembly for use with a compressive driver. The sound diffuser assembly has a sound reflector for receiving and redirecting sound energy from the compressive driver. A sound...
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...
4942939 Speaker system with folded audio transmission passage  
A loudspeaker cabinet in which an elongated enclosure has a driver mounted internally in one wall thereof in facing, open communication with the exterior of the enclosure and an outlet sound port...
4939703 Transducer baffle and sensor using same  
A baffle for enlarging the field of view of and enhancing collection of radiation for a sensor apparatus having a transducer for receiving radiation within its field of view. The baffle includes a...
4924962 Sound reproducing apparatus for use in vehicle  
A sound reproducing apparatus for use in a vehicle having a speaker system constituted by at least one acoustic duct and a speaker unit disposed at a throat of the acoustic duct, an opening formed...
4923031 High output loudspeaker system  
A loudspeaker with a pair of speaker units and a manifold chamber between the speaker units for combining the sound from both speaker units. The manifold chamber is formed by walls having an exit...
4918738 Structural assembly for housing an acoustical system  
An acoustical system for generating loud sound levels over a wider bandwidth includes a generally cylindrically-shaped cavity formed of a wall member and having front and back ends. A baffle member...
4907671 Wide dispersion reflector  
A reflector disperses the audio waves from a loudspeaker acoustic source in a substantially 180 degree pattern. The reflector, coupled with a speaker, forms a loudspeaker system producing a wide...
4884523 Vehicle 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 (5), a mounting bracket (4) which is used to attach...
Matches 51 - 100 out of 215 < 1 2 3 4 5 >