Particular Shape Of The Horn Patents (Class 181/192)
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Patent number: 11626098Abstract: A method of designing an acoustic waveguide in which acoustic waves travelling along the waveguide are treated as exhibiting single parameter behaviour, and in which the waveguide provides a boundary confining the acoustic waves as they travel along the wave propagation path and has two substantially parallel, primary surfaces spaced apart a distance less than a wavelength of a high frequency acoustic wave. The primary surfaces may be planar, curved, or a combination of planar portions and curved portions.Type: GrantFiled: October 7, 2020Date of Patent: April 11, 2023Assignee: GP ACOUSTICS INTERNATIONAL LIMITEDInventors: Jack Anthony Oclee-Brown, Mark Alexander Dodd
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Patent number: 10140970Abstract: An audio system of a vehicle includes a detection module configured to detect an occurrence of a sound when a pressure measured by an exhaust pressure sensor in an exhaust system is greater than a predetermined pressure. A sound control module is configured to, in response to the detection of the sound, increase a magnitude of a predetermined sound to be output within a passenger cabin of the vehicle. An audio driver module is configured to apply power to a speaker of the passenger cabin of the vehicle based on the predetermined sound.Type: GrantFiled: July 31, 2017Date of Patent: November 27, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Frank C. Valeri, Scott M. Reilly, William Seldon
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Patent number: 10114416Abstract: A parabolic-shaped receptacle is provided. The parabolic-shaped receptacle comprises a frame having a left side that has a left parabolic curvature and a right side that has a right parabolic curvature. Further, the parabolic-shape receptacle comprises a receiver operably connected to the frame such that the receiver receives a computing device within the frame. In addition, the parabolic-shaped receptacle comprises one or more support mechanisms operably attached to a rear portion of the frame that support the computing device in a landscape mode or a portrait mode.Type: GrantFiled: May 1, 2017Date of Patent: October 30, 2018Assignee: Language Line Services, Inc.Inventors: Lindsay D'Penha, Jeffrey Cordell
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Patent number: 10086754Abstract: A system according to the present disclosure includes a launch identification module and a speaker control module. The launch identification module is configured to monitor a speed of a vehicle and identify a vehicle launch when the vehicle speed increases from zero to a value greater than zero. The speaker control module is configured to monitor an acceleration of the vehicle control a speaker in a cabin of the vehicle to play a first sound that simulates a sound produced by at least one of an engine and a driveline during a vehicle launch when a vehicle launch is identified and the vehicle acceleration is greater than a predetermined acceleration. The speaker control module is also configured to control the speaker to not play the first sound during a vehicle launch when a vehicle launch is identified and the vehicle acceleration is less than or equal to the predetermined acceleration.Type: GrantFiled: March 29, 2017Date of Patent: October 2, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Frank C. Valeri, Scott M. Reilly, Roger C. Barlow
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Patent number: 9683364Abstract: Fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, including but not limited to intumescent material. The fire-retardant material can be attached to compressible backer rods inserted within deflection gaps in the wall systems such that the fire-retardant material expands and seals gaps and/or areas between the tracks and wall components such as ceilings, floors, and drywall. Various assemblies and methods can be used to cover the deflection gap.Type: GrantFiled: January 15, 2016Date of Patent: June 20, 2017Assignee: California Expanded Metal Products CompanyInventor: Donald A. Pilz
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Patent number: 9386361Abstract: A horn for use with a loudspeaker may include an entrance disposed at a first axial end of the horn and configured to receive a driver. A mouth may be disposed at a second axial end of the horn opposite the entrance. A contoured surface may extend between the entrance and the mouth. A cross sectional shape of a coverage pattern of audible sound emitted by the loudspeaker coupled with the horn may be independent of a shape of the entrance and a shape of the mouth.Type: GrantFiled: January 8, 2013Date of Patent: July 5, 2016Assignee: Harman International Industries, IncorporatedInventor: Charles M. Sprinkle
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Patent number: 9245513Abstract: Radial input waveguide is provided having three consecutive sound wave propagation passageways, virtually divided by two folding regions along its extension from radial input up to substantially rectangular output, each one forming a different type of waves and all three channels shaped between an internal body and a shell housing enclosing it at a distance. The radially expanding initial air channel forms a cylindrical wave front between two input walls. A relatively wide region with parallel walls is available for wave folding at adaptably changeable diameters in this region with a small distance between the folded walls. All individual partial wave fronts on the periphery of the first folding region are traveling along substantially equal, accumulated from the last two air channels, path lengths, to the waveguide output, forming there a common isophase and planar wave front.Type: GrantFiled: October 24, 2014Date of Patent: January 26, 2016Inventor: Dimitar Kirilov Dimitrov
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Patent number: 9241211Abstract: A tubular body having an air flow passage, wherein an area of a cross section, in a direction perpendicular to a tube axis, of a space enclosed with an inner wall of the tubular body increases toward an open end thereof, wherein a curvature of the inner wall at an end portion of the tubular body near the open end is repeatedly increased and decreased along a circumferential direction of the inner wall, and wherein, when the inner wall in a cross section of the end portion in the direction perpendicular to the tube axis is viewed from the tube axis, a convex portion at which the inner wall protrudes in a direction away from the tube axis and a concave portion at which the inner wall is recessed in a direction toward the tube axis are repeatedly formed along the circumferential direction.Type: GrantFiled: March 13, 2014Date of Patent: January 19, 2016Assignee: Yamaha CorporationInventors: Akira Miki, Hirofumi Onitsuka
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Patent number: 9232300Abstract: A bass reflex port having a tubular shape for air flows, wherein an angle of a first inner radial line with respect to a reference plane including a center axis of the bass reflex port differs from an angle of a second inner radial line with respect to the reference plane, the first line being orthogonal to the center axis and passing a first characteristic point on an inner circumference of the bass reflex port in a first transverse cross section perpendicular to the center axis, the second line being orthogonal to the center axis and passing a second characteristic point corresponding to the first characteristic point and located on the inner circumference in a second transverse cross section perpendicular to the center axis, the first transverse cross section and the second transverse cross section differing form each other in position in a direction of extension of the center axis.Type: GrantFiled: March 13, 2014Date of Patent: January 5, 2016Assignee: Yamaha CorporationInventors: Akira Miki, Hirofumi Onitsuka
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Publication number: 20150090521Abstract: A modular horn type loudspeaker and a modular horn array formed of modular loudspeakers. An acoustic horn includes a first acoustic module. The first acoustic module includes a first acoustic driver and a first acoustic duct, for conducting acoustic energy from the first acoustic driver. The first acoustic duct has a first opening through which acoustic energy is radiated. The first acoustic duct is characterized by a first centerline. A second acoustic module includes a second acoustic driver and a second acoustic duct, for conducting acoustic energy from the acoustic driver. The second acoustic duct has a second opening through which acoustic energy is radiated. The second acoustic duct is characterized by a second centerline.Type: ApplicationFiled: December 10, 2014Publication date: April 2, 2015Applicant: Bose CorporationInventors: David Edwards Blore, Paul F. Fidlin, Soichiro Hayashi, Thomas E. MacDonald, Peter C. Santoro
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Patent number: 8953831Abstract: An acoustic horn. In one implementation, the horn includes at least four wall sections, defining a passageway. The cross-sectional area of the mouth is at least ten times the cross sectional area of the throat. The wall sections are dimensioned so that at least one wall section has a dimension at the throat at least ten times a dimension at the throat of a second wall section. In another implementation the cross-section at the mouth is elongated and is be bounded by a continuous curve defining a geometric figure having a major axis at least ten times a minor axis.Type: GrantFiled: September 28, 2012Date of Patent: February 10, 2015Assignee: Bose CorporationInventors: Joseph Jankovsky, Sarah M. Heile, John H. Wendell
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Publication number: 20150014089Abstract: A horn for use with a loudspeaker may include an entrance disposed at a first axial end of the horn and configured to receive a driver. A mouth may be disposed at a second axial end of the horn opposite the entrance. A contoured surface may extend between the entrance and the mouth. A cross sectional shape of a coverage pattern of audible sound emitted by the loudspeaker coupled with the horn may be independent of a shape of the entrance and a shape of the mouth.Type: ApplicationFiled: January 8, 2013Publication date: January 15, 2015Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventor: Charles M. Sprinkle
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Publication number: 20150000998Abstract: The acoustic horn manifold (22) is composed of a vertical array of horn pairs (26A-26G) arranged in stacked relationship to each other. The horns (27L and 27R) of each pair have entrance openings (40L and 40R) on first common plane 44 and at the same elevation and disposed side-by-side to each other. The mouths (50L and 50R) of the horn pairs are in directional alignment with each other and stacked vertically on top of each other. The mouths may be laterally offset somewhat from each other and/or may extend forwardly from respective horn entrances at different distances from each other.Type: ApplicationFiled: September 17, 2014Publication date: January 1, 2015Applicant: LOUD Technologies IncInventors: Geoffrey P. McKinnon, Steven Desrosiers
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Patent number: 8858892Abstract: A liquid treatment system has a housing defining an interior space. The housing has an inlet port for receiving liquid into the interior space of the housing and an outlet port for allowing liquid to exit the interior space of the housing. The outlet port is spaced from the inlet port so that liquid flows through the interior space of the housing from the inlet port to the outlet port. An ultrasonic waveguide assembly is disposed within the interior space of the housing and includes an ultrasonic horn disposed at least in part intermediate the inlet port and the outlet port of the housing. The ultrasonic horn is operable at an ultrasonic frequency to ultrasonically energize liquid flowing within the housing. An ultraviolet light source emits ultraviolet light into the interior space of the housing to treat liquid flowing therein.Type: GrantFiled: December 21, 2007Date of Patent: October 14, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Robert Allen Janssen, John G. Ahles, Robert A. Cool, Thomas David Ehlert, John Gavin MacDonald, Earl C. McCraw, Jr., Patrick Sean McNichols, Paul W. Rasmussen, Steve J. Roffers
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Patent number: 8627920Abstract: A low frequency exponential folded horn enclosure employing a bifurcated horn terminal pathway and a single driver with a bifurcated throat channel, with driver access from the top or bottom of the enclosure. The horizontal “butterfly” throat is located at the rear of the enclosure and expands vertically, and the vertically arranged bifurcated horn terminus exhausts in a mostly forward direction on opposite sides of the back chamber which is reflex-ported; said ports arranged to each exhaust into the channel folds at each respective corner of the terminal horn channel.Type: GrantFiled: February 23, 2012Date of Patent: January 14, 2014Inventor: Dana A. Moore
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Patent number: 8548184Abstract: This invention provides an acoustic waveguide with a continuous least-energy-surface formed from an upper vertical control curve, a lower vertical control curve, right horizontal control curve and a left horizontal control curve. In addition, a circular throat end and a non-elliptical closed control curve form a mouth such that the continuous least-energy-surface is coincident with the six control curves.Type: GrantFiled: May 2, 2011Date of Patent: October 1, 2013Assignee: Harman International Industries, IncorporatedInventor: Bernard M. Werner
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Patent number: 8522917Abstract: A cell phone sound amplifying extend cup comprises a conical trumpet portion, an amplifying barrel portion, a first receptacle portion, a second receptacle portion and a net portion. The conical trumpet portion is for collecting and reflecting sound. The first receptacle portion is for receiving a mobile communication device of a first kind. The second receptacle portion is disposed for receiving a mobile communication device of a second kind. The net portion is disposed between the conical trumpet portion and the amplifying barrel portion for supporting the mobile communication device in place. The sound from the mobile communication device is collected and reflected in the conical trumpet portion and amplified in the amplifying barrel portion, such that the sound of the mobile communication device is delivered to a user far away from the mobile communication device.Type: GrantFiled: May 25, 2012Date of Patent: September 3, 2013Inventors: Kwang J Oh, Loren Oh, Austin Oh
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Patent number: 8469140Abstract: A radial waveguide assembly comprises a transducer section and a waveguide section. The transducer section includes first and second cone loudspeakers arranged coaxially and in an opposed relationship. A compression plug having two input surfaces is mounted between diaphragms of the cone loudspeakers. Channels from the first and second cone loudspeakers feed common sound chambers located in a belt around the circular perimeter where they connect to external ports. A radial; folded waveguide has a circular throat which connects to the external ports.Type: GrantFiled: January 9, 2012Date of Patent: June 25, 2013Inventor: Curtis E. Graber
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Patent number: 8213658Abstract: An acoustical horn having an inlet or throat, and an outlet or mouth wherein the shape of at least a portion of the horn between the throat and the mouth is defined by an exponential function including a negative exponential term.Type: GrantFiled: December 12, 2008Date of Patent: July 3, 2012Assignee: Tannoy LimitedInventor: Philippe Jean-Baptiste Robineau
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Patent number: 8036403Abstract: The present invention belongs to the field of loudspeaker and relates to directional sound wave radiator comprising a sound transmission duct, a reverser, an annular director, a parabolic reflector, and a straight tubular loudspeaker cylinder. The sound transmission duct is mounted substantially coaxially with said parabolic reflector. The straight tubular loudspeaker cylinder is connected to said parabolic reflector. The reverser is provided inside said straight tubular loudspeaker cylinder and at the outlet end of said sound transmission duct; the outlet end of said reverser has an annular section, which is substantially perpendicular to the axis of said parabolic reflector and is positioned substantially at the focus of said parabolic reflector. The annular director is mounted around said sound transmission duct and at the outlet end of said reverser to define an annular shape of the outlet end of said reverser.Type: GrantFiled: August 1, 2008Date of Patent: October 11, 2011Assignee: Beijing Wave Energy Technology Development Company, Ltd.Inventor: Baoshu Xi
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Patent number: 7979147Abstract: An apparatus for replicating an engine and/or exhaust sound of a predetermined vehicle includes files stored in computer-readable form in a memory library of the engine and/or exhaust sound of the predetermined vehicle. A microcomputer operated controller receives engine data such as the RPM of the engine of the personal vehicle and continually selects which files to obtain and use. The controller adjusts the sound pattern to optimally correspond in a preferred way with the RPM of the engine of the personal vehicle and the controller provides an output signal that is amplified and fed to a speaker for audio playback of a replicated sound of the engine and/or exhaust sound of the predetermined vehicle in the personal vehicle. A speaker disposed outside the vehicle includes a conical or cylindrical shape. A diagnostic capability is also disclosed. Connection to an OBD II connector provides the desired engine data.Type: GrantFiled: October 6, 2008Date of Patent: July 12, 2011Inventor: James Francis Dunn
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Patent number: 7936892Abstract: This invention provides an acoustic waveguide with a continuous least-energy-surface formed from an upper vertical control curve, a lower vertical control curve, right horizontal control curve and a left horizontal control curve. In addition, a circular throat end and a non-elliptical closed control curve form a mouth such that the continuous least-energy-surface is coincident with the six control curves.Type: GrantFiled: January 14, 2002Date of Patent: May 3, 2011Assignee: Harman International Industries, IncorporatedInventor: Bernard M. Werner
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Publication number: 20110064247Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.Type: ApplicationFiled: September 11, 2009Publication date: March 17, 2011Inventors: Christopher B. Ickler, Clifford A. Henricksen, Akira Mochimaru, Kenneth D. Jacob, Soichiro Hayashi
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Patent number: 7886869Abstract: An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic device including an acoustic driver and an acoustic waveguide with two open ends. A method for making the acoustic device.Type: GrantFiled: September 27, 2007Date of Patent: February 15, 2011Inventors: Kevin Bastyr, Hidehiko Fukushima
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Publication number: 20100307859Abstract: The present invention relates to an acoustic device for linear perceived-sound attenuation, comprising a channel along which the sound propagates from an entry to an exit, characterized in that it comprises, combined so as to make the perceived sound undergo a linear attenuation, at its entry, means for attenuating and setting into resonance sound propagating through the latter as far as at least one filter opening as exit, onto means for accentuating the filtered sound, in particular its short-wave frequencies, the accentuation means consisting of a frustoconical portion of the channel having a cross-section that increases from the housing towards the exit.Type: ApplicationFiled: December 19, 2008Publication date: December 9, 2010Applicant: EarsonicsInventors: Franck Lopez, Pricille Angot
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Patent number: 7845462Abstract: A middle to high frequency straight pathway horn with wide horizontal dispersion characteristics having extended terminus side walls which approach a perpendicular angle compared to the horn axis which are further extended by a rearwardly divergent angled or curved surface from the terminus frontal plane to reduce the deleterious effects of horn mouth, edge, and baffle diffraction, allowing for traditional front baffle mounting or free-standing use. Modular baffle elements allow the invention to be configured for the further reduction of diffraction effects in a variety of applications.Type: GrantFiled: August 7, 2008Date of Patent: December 7, 2010Inventor: Dana A. Moore
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Patent number: 7743878Abstract: A folded horn enclosure including a unitary throat and horn pathway which is optimized for ?th space placement when operated as a stacked pair. The enclosure uses at least 2 different flare rates and is suitable for standing vertically and horizontally, and further allowing stacking of 2 enclosures to form a full-sized corner horn.Type: GrantFiled: March 24, 2009Date of Patent: June 29, 2010Inventor: Dana A. Moore
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Patent number: 7735599Abstract: A sound wave guide structure for a speaker system comprises a sound passage space connecting an inlet opening 11 to an outlet opening 12. The sound passage space branches in plural stages in a range from the inlet opening 11 to the outlet opening 12, thereby forming a plurality of sound wave guide paths extending from the inlet opening 11 to the outlet opening 12.Type: GrantFiled: March 25, 2004Date of Patent: June 15, 2010Assignee: TOA CorporationInventor: Hiroshi Kubota
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Patent number: 7686129Abstract: A horn and a loudspeaker employing the horn are disclosed that include a body having a throat that expands outwardly to a mouth such that a first interior area defined by the throat is smaller than a second interior area defined by the mouth. A plurality of raised surface areas is located on an interior surface of the body. The raised surface areas extend into a hollow interior defined by the body a predetermined distance and are utilized to channel sound waves through the body and out the mouth.Type: GrantFiled: August 30, 2007Date of Patent: March 30, 2010Assignee: Klipsch LLCInventor: Rogelio Delgado, Jr.
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Publication number: 20100032233Abstract: A middle to high frequency straight pathway horn with wide horizontal dispersion characteristics having extended terminus side walls which approach a perpendicular angle compared to the horn axis which are further extended by a rearwardly divergent angled or curved surface from the terminus frontal plane to reduce the deleterious effects of horn mouth, edge, and baffle diffraction, allowing for traditional front baffle mounting or free-standing use. Modular baffle elements allow the invention to be configured for the further reduction of diffraction effects in a variety of applications.Type: ApplicationFiled: August 7, 2008Publication date: February 11, 2010Inventor: Dana A. Moore
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Patent number: 7631724Abstract: A sound-wave path-length correcting structure for a speaker system includes a sound source and a horn. The horn has a sound-wave path-length correcting throat portion. The sound-wave path-length correcting throat portion corrects a sound-wave path-length of a sound wave input from an inlet opening thereof in the sound path, and emits the sound wave from an outlet opening thereof. The sound path is defined by a first side surface with a concave curved surface and a second side surface with a convex curved surface that face each other with a space, and a third side surface and a fourth side surface that face each other with a space. The third side surface and the fourth side surface are formed so that their surfaces gradually widen as the surfaces advance from the inlet opening to the outlet opening of the sound-wave path-length correcting throat portion.Type: GrantFiled: April 22, 2008Date of Patent: December 15, 2009Assignee: Victor Company of Japan, LimitedInventor: Masatake Onishi
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Publication number: 20090154751Abstract: An acoustical horn having an inlet or throat, and an outlet or mouth wherein the shape of at least a portion of the horn between the throat and the mouth is defined by an exponential function including a negative exponential term.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Inventor: Philippe Jean-Baptiste Robineau
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Patent number: 7520368Abstract: A low frequency folded horn enclosure intended for use in proximity with at least one planar surface with access to the horn throat from the top of the enclosure. The horn is bifurcated at the throat and folds horizontally around a central trapezoid-shaped columnar back chamber which includes a phase-inverting means. The throat channel expands vertically to the single fold and expands vertically and horizontally to the horn mouth, maximizing back chamber volume within the constraints imposed by footprint size, frequency response, and driver characteristics.Type: GrantFiled: June 8, 2007Date of Patent: April 21, 2009Inventor: Dana A. Moore
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Patent number: 7513332Abstract: A low frequency exponential bass horn enclosure employing a bifurcated horn pathway and twin throats, convertible to a variety of front-loaded or rear-loaded configurations without modifications by the use of interchangeable parts, with driver access typically from the front. Optimized for corner placement but fully enclosed horn channel allows for floor or wall use. The horizontal “butterfly” throat is located at the rear of the enclosure and expands vertically, and the vertically arranged horn terminus exhausts in forward-canted splay angles around a partially rectangular back chamber.Type: GrantFiled: September 12, 2007Date of Patent: April 7, 2009Inventor: Dana A. Moore
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Publication number: 20090084625Abstract: An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic device including an acoustic driver and an acoustic waveguide with two open ends. A method for making the acoustic device.Type: ApplicationFiled: September 27, 2007Publication date: April 2, 2009Applicant: Bose CorporationInventors: Kevin Bastyr, Hidehiko Fukushima
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Publication number: 20090065293Abstract: A low frequency exponential bass horn enclosure employing a bifurcated horn pathway and twin throats, convertible to a variety of front-loaded or rear-loaded configurations without modifications by the use of interchangeable parts, with driver access typically from the front. Optimized for corner placement but fully enclosed horn channel allows for floor or wall use. The horizontal “butterfly” throat is located at the rear of the enclosure and expands vertically, and the vertically arranged horn terminus exhausts in forward-canted splay angles around a partially rectangular back chamber.Type: ApplicationFiled: September 12, 2007Publication date: March 12, 2009Inventor: Dana A. Moore
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Publication number: 20090057052Abstract: A horn and a loudspeaker employing the horn are disclosed that include a body having a throat that expands outwardly to a mouth such that a first interior area defined by the throat is smaller than a second interior area defined by the mouth. A plurality of raised surface areas is located on an interior surface of the body. The raised surface areas extend into a hollow interior defined by the body a predetermined distance and are utilized to channel sound waves through the body and out the mouth.Type: ApplicationFiled: August 30, 2007Publication date: March 5, 2009Inventor: Rogelio Delgado, JR.
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Publication number: 20080264717Abstract: A sound-wave path-length correcting structure for a speaker system includes a sound source and a horn. The horn has a sound-wave path-length correcting throat portion. The sound-wave path-length correcting throat portion corrects a sound-wave path-length of a sound wave input from an inlet opening thereof in the sound path, and emits the sound wave from an outlet opening thereof. The sound path is defined by a first side surface with a concave curved surface and a second side surface with a convex curved surface that face each other with a space, and a third side surface and a fourth side surface that face each other with a space. The third side surface and the fourth side surface are formed so that their surfaces gradually widen as the surfaces advance from the inlet opening to the outlet opening of the sound-wave path-length-correcting throat portion.Type: ApplicationFiled: April 22, 2008Publication date: October 30, 2008Applicant: VICTOR COMPANY OF JAPAN, LIMITEDInventor: Masatake ONISHI
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Patent number: 7392880Abstract: 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 the lower frequency passage and the higher frequency passage, so that a smooth combination of the two frequency bands is achieved at the entrance to the horn bell. Thus, each frequency band has nearly identical dispersion, and the two sources have equal delay.Type: GrantFiled: March 31, 2003Date of Patent: July 1, 2008Assignee: Gibson Guitar Corp.Inventor: Marshall D. Buck
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Patent number: 7360499Abstract: A power efficient, acoustical Helmholtz resonator foghorn including a plurality of electrical emitters, some of which are redundant, arrayed at one end of a blocked tube with a plurality of exhaust ports located therein surrounded by a standoff tubular member. The foghorn tuned to provide a high pitch thus providing a compact horn having an acoustical path capable of producing an exceptional wavelength in a generally concentric horizontal sound propagation the horn configurable for use as either a one-half mile or two mile marine navigational aid for offshore structures, buoys, and the like.Type: GrantFiled: November 3, 2005Date of Patent: April 22, 2008Assignee: Essi CorporationInventor: Robert M. O'Neill
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Patent number: 7275621Abstract: 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 flange and the mouth, a transducer for generating a sonic output operationally connected to the coupling flange, and a major axis extending through the elongated throat. The coupling flange plane and the mouth plane are nonparallel and define a horn angle. The major axis connects the coupling flange and the mouth and the elongated throat is characterized by a substantially steadily increasing sectional area along the major axis from the transducer-connecting end to the mouth connecting end.Type: GrantFiled: January 18, 2005Date of Patent: October 2, 2007Assignee: Klipsch, LLCInventor: Rogelio Delgado, Jr.
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Patent number: 7268467Abstract: An acoustic transducer provided with at least one sound source for generating an acoustic centre and a predetermined construction for guiding sound generated by the acoustic centre, which acoustic transducer can be fixed to a fixing wall, wherein the predetermined construction is so designed that, during operation, the generated sound is displaced by the predetermined construction to a displaced acoustic centre at a location that is on the fixing wall (5), when the acoustic transducer (10) is fixed to the fixing wall (5).Type: GrantFiled: February 14, 2003Date of Patent: September 11, 2007Assignee: Duran Audio B.V.Inventor: Gerard Hendrik Josephus De Vries
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Patent number: 7095868Abstract: A phase plug for optimally matching a drive-unit's diaphragm to the throat of a waveguide is disclosed. Specific embodiments of a circular diaphragm matched to an elliptical waveguide and a circular diaphragm to a rectangular waveguide are disclosed.Type: GrantFiled: February 10, 2003Date of Patent: August 22, 2006Inventor: Earl Geddes
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Patent number: 7044265Abstract: An improved throat (2) for transmitting acoustic energy from a source driver unit (7) to a feeder section (3) of a directivity controlling acoustic horn is disclosed. The throat (2) comprises: a circular throat entrance (2i) connectable to the source driver unit (7); a rectangular throat exit (2e) connectable to or integral with the feeder section (3); and a circular cross-section to rectangular cross-section transition portion (2a) extending between the throat entrance (2i) and the throat exit (2e). The throat (2) is shaped such that its profiles initially diverge from an axis longitudinal to the throat (14) at the same angle in a direction from the throat entrance (2i) towards the throat exit (2e). Such a throat, when fitted in an appropriate acoustic horn with a source driver unit having a taper matching the aforesaid profile angles, provides a smooth transition for sound waves propagating out from the source driver unit into the horn.Type: GrantFiled: September 16, 2003Date of Patent: May 16, 2006Assignee: Krix Loudspeakers Pty Ltd.Inventor: David John Murphy
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Patent number: 6868937Abstract: A sub-woofer system with a flat horn for use in a vehicle which is capable of achieving an improved sound reproducing performance as well as an excellent space factor by mounting the horn on the floor of the vehicle. The sub-woofer system includes a flat horn having a proximal end and a distal end where the proximal end is connected to a drive unit. The flat horn has a rectangular cross-section and is substantially uniform in thickness throughout while gradually increases in width toward the distal end. The drive unit is positioned under a front seat of the vehicle and the flat horn is placed on a floor of the vehicle, and wherein an end opening of the flat horn at the distal end thereof is positioned close to an inner front wall of the vehicle so that at least a part of the distal end contacts with the front wall.Type: GrantFiled: March 26, 2002Date of Patent: March 22, 2005Assignee: Alpine Electronics, IncInventor: Glenn Cass
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Patent number: 6837334Abstract: A folded structure (and a blank of sheet material) capable of being folded to said structure is provided which structure is an acoustic horn comprising an acoustic horn comprising a tapered structure having a base end and an apex end, the tapered structure being formed from a sheet of foldable material, and comprising a wall member having a plurality of fold lines defining the edges of a plurality of juxtaposed panels, characterised in that at least two of the fold lines (73, 74) are arcuate to form a non-planar panel (55) bound by said arcuate fold lines both base end (51) and apex end (52) being open. The structure provides an inexpensive party product which can easily be shaped in flat form but provides pleasing acoustical properties.Type: GrantFiled: March 25, 1999Date of Patent: January 4, 2005Inventor: Dominic Le Prevost
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Patent number: 6754360Abstract: A signal-horn has an electromagnetically actuated oscillating membrane coupled to an acoustic amplifier having a volute wound duct formed of a first length with generally constant section having an inlet for the sound signal and a second length with variable section in the form of a conical exponential having an outlet for the sound signal. The ratio of the figure representing the volume defined by the oscillating membrane between two points of maximum elongation and the figure representing the area of the cross section of the first length is between 16 and 20.Type: GrantFiled: November 25, 2002Date of Patent: June 22, 2004Assignee: Stebel SPAInventor: Attilio Granziera
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Publication number: 20040060768Abstract: An improved throat 2 for transmitting acoustic energy from a source driver unit 7 to a feeder section 3 of a directivity controlling acoustic horn is disclosed. The throat 2 comprises: a circular throat entrance 2i connectable to the source driver unit 7; a rectangular throat exit 2e connectable to or integral with the feeder section 3; and a circular cross-section to rectangular cross-section transition portion 2a extending between the throat entrance 2i and the throat exit 2e. The throat 2 is shaped such that its profiles initially diverge from an axis longitudinal to the throat 14 at the same angle in a direction from the throat entrance 2i towards the throat exit 2e. Such a throat, when fitted in an appropriate acoustic horn with a source driver unit having a taper matching the aforesaid profile angles, provides a smooth transition for sound waves propagating out from the source driver unit into the horn.Type: ApplicationFiled: September 16, 2003Publication date: April 1, 2004Inventor: David John Murphy
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Patent number: 6712177Abstract: The invention relates to a horn loudspeaker system. The horn loudspeaker system includes a pair of vertically displaced horns with cross-fired aiming angles. A common throat section couples the horns to a driver. A substantially asymmetrical baffling is incorporated into the loudspeaker system to further improve the acoustic performance. One advantage of the unique horn loudspeaker system is that it provides a wide horizontal directivity response. Another advantage is that it provides a narrow vertical directivity response.Type: GrantFiled: May 30, 2001Date of Patent: March 30, 2004Inventor: Mark S. Ureda
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Publication number: 20030150668Abstract: The invention features an acoustic waveguide and system for transmitting pressure wave energy produced by an electroacoustical transducer in a medium that propagates pressure wave energy. The acoustic waveguide and system includes a tube defining a spiral-shaped channel with a length of L. The tube has a first end and a second end with the first end closed and the second end open to the medium. The tube has a transducer opening for accommodating an electroacoustical transducer located between the first and second end of the tube. The system includes an electroacoustical transducer mounted to the acoustic waveguide.Type: ApplicationFiled: February 28, 2002Publication date: August 14, 2003Inventor: George Nichols