Adjustable Patents (Class 181/186)
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Patent number: 10194238Abstract: A loudspeaker baffle that provides variable sound patterns is described. The baffle may support non-low frequency sound sources and a waveguide to provide varying sound beam patterns. The baffle may include a center mount adapted to receive a plurality of audio outputs and a plurality of low frequency apertures to receive a plurality low frequency output. The waveguide may be formed from a front face of the baffle. The front face may be intermediate the center mount and the low frequency apertures. The front face may include a continuously varying waveguide surface with a first waveguide portion adjacent a first audio output of the plurality of audio outputs providing a first sound pattern and a second waveguide portion adjacent a second audio output of the plurality of audio outputs providing a second sound pattern that is different than the first sound pattern.Type: GrantFiled: December 8, 2017Date of Patent: January 29, 2019Assignee: Harman International Industries, IncorporatedInventors: Douglas J. Button, Richard D. Kamlet
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Patent number: 8891805Abstract: A speaker apparatus selects a path which emits a speaker sound. The speaker apparatus includes a speaker unit for outputting the sound generated from voice data, a body including at least one or more emission paths for guiding and emitting the sound output from the speaker unit, and a member for opening or shutting out at least one emission path.Type: GrantFiled: April 5, 2012Date of Patent: November 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-Eun Han, Jang-Hoon Kang, Ki-Won Kim
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Patent number: 8731224Abstract: In a bass reflex type speaker, a Helmholtz resonator is formed by a bass reflex port and a space within a speaker enclosure excluding the bass reflex port and a speaker unit. The bass reflex port of the bass reflex type speaker is movable toward and away from a side surface while maintaining its projecting direction within the speaker enclosure. In response to such movement of the bass reflex port, relative positional relationship between a neck and cavity of the bass reflex type speaker varies.Type: GrantFiled: February 24, 2011Date of Patent: May 20, 2014Assignee: Yamaha CorporationInventors: Yasuo Shiozawa, Hirofumi Onitsuka
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Patent number: 8213669Abstract: A rotary tweeter mounting arrangement used in a speaker assembly is disclosed to include a hollow holder member affixed to a T-iron of the speaker assembly and having a cup portion at the top, a semispherical carrier member rotatably supported on the cup portion of the hollow holder member, a circular spring plate mounted in a lower part inside the carrier member, a screw inserted through a center mounting hole of the circular spring plate and a center through hole of the semispherical carrier member to pivotally secure the semispherical carrier member to the hollow holder member, and a face panel fastened to the semispherical carrier member to hold a tweeter for allowing rotation of the tweeter with the face panel and the semispherical carrier member relative to the hollow base member.Type: GrantFiled: August 16, 2007Date of Patent: July 3, 2012Assignee: Hi-Tech Sound System Co., Ltd.Inventor: Steff Lin
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Patent number: 8191674Abstract: A loudspeaker horn includes a pair of opposed flared sides defining a passage diverging to a mouth, and a vane positioned in the passage for steering sound waves through the passage. The vane may have a straight configuration and be either centrally located between the flared sides or laterally offset in the diverging passage. The vane may be fixed in position or, more preferably, be pivotable so as to be adjustable before each new use according to conditions at that use. The horn may be part of a horn unit that includes a funnel for feeding sound to the horn, and the horn or horn unit may be part of a horn loudspeaker.Type: GrantFiled: April 21, 2006Date of Patent: June 5, 2012Assignee: Martin Audio LimitedInventor: Ambrose Thompson
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Publication number: 20090277713Abstract: A loudspeaker horn includes a pair of opposed flared sides defining a passage diverging to a mouth, and a vane positioned in the passage for steering sound waves through the passage. The vane may have a straight configuration and be either centrally located between the flared sides or laterally offset in the diverging passage. The vane may be fixed in position or, more preferably, be pivotable so as to be adjustable before each new use according to conditions at that use. The horn may be part of a horn unit that includes a funnel for feeding sound to the horn, and the horn or horn unit may be part of a horn loudspeaker.Type: ApplicationFiled: April 21, 2006Publication date: November 12, 2009Inventor: Ambrose Thopson
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Patent number: 7178629Abstract: A horn or waveguide public address unit, enabling to adapt the dispersion characteristics of the horn or waveguide. The unit is provided with at least one profiling component (21a, 21b) constituting a removable dispersion shaper, capable of being mounted on the inner wall of the horn (13) or waveguide between the throat (17) and the mouth (19) thereof.Type: GrantFiled: July 22, 2002Date of Patent: February 20, 2007Assignee: NEXOInventor: Eric Vincenot
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Publication number: 20040245043Abstract: The invention relates to a waveguide loudspeaker with adjustable controlled dispersion which comprises a duct fonned by flat, concave or convex walls round a diffraction throat, and which finishes in a mouth and where reflection can occur before or after the diffraction throat. The mouth is folded back in relation to the throat and has dimensions and shape chosen for the simultaneous application of at least two of the three fundamental principles for sound diffusion, namely diffraction, reflection and absorption. Also, the invention concerns a method to obtain a loudspeaker having means to vary and set at least the degree of diffraction and reflection for the reproduction of wide bands of mid/high frequencies with a limited horn or waveguide length.Type: ApplicationFiled: March 29, 2004Publication date: December 9, 2004Inventors: Guido Noselli, Stefano Noselli
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Publication number: 20040206572Abstract: The invention concerns improvement to a horn or waveguide public address unit, enabling to adapt the dispersion characteristics of said horn or waveguide. The invention is characterised in that it is provided with at least one profiling component (21a, 21b) constituting a removable dispersion shaper, capable of being mounted on the inner wall of the horn (13) or waveguide between the throat (17) and the mouth (19) thereof.Type: ApplicationFiled: January 22, 2004Publication date: October 21, 2004Inventor: Eric Vincenot
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Patent number: 6766027Abstract: An elliptical speaker system is provided for in-wall/in-ceiling mounting. The speaker system comprises an elliptical speaker frame or bracket defining a speaker front plane having a generally arcuate inner surface. First and second speaker components are mounted within the speaker frame, on opposing sides of the speaker inner surface. At least one of the speaker components may be translatable within the speaker frame.Type: GrantFiled: October 31, 2002Date of Patent: July 20, 2004Assignee: Dana InnovationsInventors: Todd Ryan, Ray Call, Tommy Rucci
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Patent number: 6335974Abstract: An audio apparatus for an equipment relates to an improvement of the sound quality in an acoustic apparatus of the equipment in which for an equipment having a woofer (4) and a tweeter (5), the acoustic apparatus (10) of the equipment includes a panel portion (3) which forms a part of a casing (2) of the equipment and has a plurality of holes (H), a sound conductor (8) which is arranged between the woofer (4) and the panel portion (3), and a buffer member (9) which is provided between the sound conductor (8) and the panel portion (3) and absorbs any woofer vibration.Type: GrantFiled: March 6, 1998Date of Patent: January 1, 2002Assignee: Sony CorporationInventor: Isao Kunimoto
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Patent number: 5837890Abstract: A jet engine test cell capable of dissipating infrasound. The test cell includes an engine test section, an augmentor and an exhaust stack having a structure near its open end for dissipating infrasound.Type: GrantFiled: December 12, 1994Date of Patent: November 17, 1998Assignee: Aero Systems Engineering, Inc.Inventor: Dean F. Long
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Patent number: 5351220Abstract: 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) and has openings for the output of sound, a power-factor-improvement device/super charger (13) made of a nonmagnetic material which is placed in the concavity of the diaphragm (11) and which has annular, concentric ducts (13') having a conical shape, and a cover (14) made of a nonmagnetic material serving as the lid in both configurations of the transducer, the said cover being applied to the body facing the concavity of the said diaphragm in a direct-radiation transducer, while it is applied to the body facing the convexity of the said magnetic disk (12) in an indirect-radiation transducer.Type: GrantFiled: June 23, 1993Date of Patent: September 27, 1994Assignee: Online S.N.C. Di Noselli G. & C.Inventor: Guido Noselli
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Patent number: 5146434Abstract: A sound focusing device for use with a siren. The device is comprised of an adjustable baffle or damper reducing the velocity of air or sound eminating from a siren. The baffle or damper is positioned internal to the siren. A conical sound focusing trumpet is positioned co-axially and external to the siren. The baffle or damper is made up of two complementary disks forming at least one defined opening therein. The baffle or damper is selectively adjustable.Type: GrantFiled: April 22, 1991Date of Patent: September 8, 1992Inventor: Daniel Bromley
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Patent number: 4419545Abstract: An electret transducer comprising a diaphragm (3) arranged between first (1 or 1') and second electrodes with at least one electrode (2) arranged at some distance from the diaphragm as a stationary electrode formed with holes (5). An air gap (4) is formed between the diaphragm (3) and said electrode (2). In the case of one air gap the air gap width d and the area A (7) enclosed by four holes which are situated nearest each other in said electrode (2) are selected so that the following equation is satisfied ##EQU1## where .eta. is the dynamic viscosity of the air in the air gap. In the case of an air gap on each side of the diaphragm, the air gap widths d.sub.1 and d.sub.2 and the said areas A.sub.1 and A.sub.Type: GrantFiled: July 13, 1981Date of Patent: December 6, 1983Assignee: U.S. Philips CorporationInventor: Pieter I. Kuindersma
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Patent number: 4194590Abstract: A loudspeaker horn, which is divided into three segments, is provided with a valve for projecting sound either through the central segment or through all of the segments, said valve being adjustable from the front of the loudspeaker by a knob which has markings thereon to indicate the position of the valve and which is provided with means for retaining it in the position set by the knob.Type: GrantFiled: April 13, 1979Date of Patent: March 25, 1980Assignee: Shure Brothers, IncorporatedInventors: C. Roger Anderson, Robert B. Schulein