Three Diaphragms Patents (Class 181/147)
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Patent number: 11445302Abstract: Electronics devices according to embodiments of the present technology may include a first loudspeaker and a second loudspeaker disposed in a housing. The housing may define a first internal volume between a first end of the housing and a backside of the first loudspeaker. The housing may define a second internal volume between a second end of the housing and a backside of the second loudspeaker. The first loudspeaker and the second loudspeaker may be positioned within the housing so a front side of the first loudspeaker faces a front side of the second loudspeaker. A duct may be defined by the housing, which may access the first internal volume at a first end and may access the second internal volume at a second end. The electronic device may also include a processor configured to deliver signals to the first loudspeaker and the second loudspeaker.Type: GrantFiled: November 2, 2020Date of Patent: September 13, 2022Assignee: Apple Inc.Inventors: Michael B. Nussbaum, Jason C. Della Rosa, Glenn K. Trainer
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Patent number: 11336992Abstract: One or more embodiments of the present disclosure relate to a two-way loudspeaker design that forces a condensed geometry between low frequency (LF) and high frequency (HF) drivers and then “floats” a midrange waveguide in front of the LF driver. This is a hybrid design meant to benefit from the close proximity of acoustic centers without introducing a central axis obstruction for the LF driver. In addition, the LF and HF waveguides and associated acoustic elements are used to redirect very low frequency energy not supported adequately by the LF waveguide to exit freely using other paths.Type: GrantFiled: March 31, 2020Date of Patent: May 17, 2022Assignee: Harman International Industries, IncorporatedInventors: Paul Wayne Peace, Derrick Rodgers
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Patent number: 11122348Abstract: An omni, bollard speaker has circular, cylindrical lower and upper housings. A domed driver is mounted within the top wall of the lower housing and a speaker is rotatably mounted in the internal space in the upper housing, between the top wall of the lower housing and the speaker cover of the upper housing. The speaker is rotatable from a first horizontal position directly over the domed driver to reflect wide dispersion acoustical output directly over the driver to disburse sound evenly within the listening area. The speaker can be quickly rotated downward and converted from this down-firing omni reflecting position to a side firing position or an up-and-out, direct radiating position. Thus, the same speaker serves many different sound coverage applications and can be customized on site for best use.Type: GrantFiled: September 23, 2019Date of Patent: September 14, 2021Assignee: COASTAL SOURCE, LLCInventors: Franco L. D'Ascanio, Nicholas A D'Ascanio, Sean P Snowden
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Patent number: 11064308Abstract: Embodiments are directed to upward-firing speakers that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The upward firing driver is tilted at an inclination angle of approximately 20 degrees to the horizontal axis of the speaker and separate height and direct terminal connections are provided to interface to an adaptive audio rendering system.Type: GrantFiled: July 28, 2020Date of Patent: July 13, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Brett G. Crockett, Alan J. Seefeldt, C. Phillip Brown
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Patent number: 10993018Abstract: Generation of a secondary sound source is inhibited, and a sound quality is improved. Included are a support fixed to a mount base, a speaker unit including a portion to be fixed, and a base casing holding the speaker unit, and the speaker unit is fixed to the support and the base casing with the portion to be fixed being sandwiched between the support and the base casing. With this configuration, the speaker unit will be held stably, a great oscillation from a diaphragm of the speaker unit is less transmitted to the parts other than the diaphragm of the speaker unit, to the member holding the speaker unit, or the like. Generation of a secondary sound source is inhibited, and a sound quality can be improved.Type: GrantFiled: November 9, 2015Date of Patent: April 27, 2021Assignee: SONY CORPORATIONInventors: Kohei Kikuchi, Yohei Fukuma, Nobukazu Suzuki, Kazuhiro Matsutani, Yoshio Ohashi, Yasuo Kawabata
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Patent number: 10771897Abstract: A system for enhancing sound includes a structure defining a first portion of an oblong enclosure that forms an approximated double ellipse profile and positioned between a first area proximate a first speaker driver and a second area proximate the listener, the first portion of the oblong enclosure forming a first part of the approximated double ellipse profile; and a second portion of the oblong enclosure that forms the approximated double ellipse profile and positioned between a third area proximate a second speaker driver and a fourth area proximate the listener, the second portion of the oblong enclosure forming a second part of the approximated double ellipse profile. The first portion and the second portion are shaped such that sound emitted from the first speaker driver and the second speaker driver is reflected and focused toward the listener.Type: GrantFiled: December 3, 2018Date of Patent: September 8, 2020Inventor: Richard O'Polka
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Patent number: 10708683Abstract: A speaker system is provided herein that includes a frame at least partially encompassing a diaphragm of a first transducer. A bridge is operably coupled with the frame. The bridge includes a support section and a pair of arms extending therefrom, the support section including a rim portion. A second transducer is supported by the bridge and at least partially disposed within the rim portion. A first sound altering feature is disposed on a first side of the second transducer. An asymmetrical second sound altering feature is disposed on a second opposing side of the second transducer.Type: GrantFiled: March 14, 2019Date of Patent: July 7, 2020Assignee: KLIPSCH GROUP, INC.Inventor: Riccardo Balistreri
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Patent number: 10701487Abstract: Crossover networks modified to render audible colorations or frequency/phase emphases observed in some crossover networks of the prior art. Circuit topologies of prior art crossover networks are modified such that an additional pole appears in the transfer functions of one or more low-frequency pass crossover filters. In addition, the characteristic input impedance of one branch of the modified crossover network is reduced, typically to a value of approximately one-half the design characteristic impedance of the unmodified crossover networks.Type: GrantFiled: June 25, 2019Date of Patent: June 30, 2020Inventor: Richard Modafferi
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Patent number: 10694279Abstract: A loudspeaker can include first and second drivers. The first driver can include a cone that has a center region, a peripheral region surrounding the center region, and a boundary connecting the center region and the peripheral region. A bridge can position the second driver coaxial with and proximal to the first driver. The center region of the cone can be recessed to allow a lower profile of the loudspeaker.Type: GrantFiled: December 21, 2018Date of Patent: June 23, 2020Assignee: Alpine Electronics, Inc.Inventor: Benny Danovi
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Patent number: 10506359Abstract: A sound system comprising: a body (4) with several substantially vertical panels; at least two sound emitting elements (10, 12) mounted on the body; and an electronic circuit providing drive signals to the sound emitting elements; wherein said at least two sound emitting elements (10, 12) are mounted on said substantially vertical panels and are oriented along two different directions (26).Type: GrantFiled: January 6, 2012Date of Patent: December 10, 2019Assignee: Naxos Finance S.A.Inventor: Hartmut Esslinger
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Patent number: 10484787Abstract: A loudspeaker apparatus includes at least three speaker units, and a space defining part defining at least two sealed spaces. Each of the speaker units has a diaphragm having two surfaces, and a driver unit for inputting an electrical signal and driving the diaphragm. Each of the sealed spaces has at least two boundary diaphragms. Each of the boundary diaphragms is one of the diaphragms, disposed so that a first one of the surfaces faces inside the sealed space and a second one of the surfaces faces outside the sealed space. When at least one of the boundary diaphragms is driven outward from the sealed space, at least one of the other boundary diaphragms is driven inward to the sealed space. The boundary diaphragms driven outward and the boundary diaphragms driven inward are the same in number, and thereby a volume of the sealed space is kept constant.Type: GrantFiled: April 3, 2018Date of Patent: November 19, 2019Assignee: ZORZO CO., LTD.Inventor: Teppei Yamada
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Patent number: 10455317Abstract: A system and method for a hybrid ring-radiator headphone driver, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.Type: GrantFiled: June 20, 2017Date of Patent: October 22, 2019Assignee: Voyetra Turtle Beach, Inc.Inventor: David Zepp
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Patent number: 10440478Abstract: A tablet woofer and an electronic device using same. The woofer comprises a vibrating diaphragm, at least four mutually independent drive units (5), and a housing (3). The vibrating diaphragm is a rectangle shape, and comprises a rigid arc portion (1) at the central position and a spiral curve portion (2) at the periphery; the drive unit (5) comprises a voice coil unit and a corresponding magnetic circuit unit, and four angles of the arc portion (1) of the vibrating diaphragm are each combined with one voice coil unit; the housing (3) is provided with mounting holes (4) for accommodating and mounting the drive units (5), and sound holes penetrating through the mounting plane; the spiral curve portion (2) of the vibrating diaphragm is fixedly connected to the periphery of the upper side of the housing (3).Type: GrantFiled: August 8, 2017Date of Patent: October 8, 2019Assignee: Goertek Inc.Inventors: Chao Jiang, Jianbin Yang, Zhi Li, Qijin Jiao
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Patent number: 10375508Abstract: Embodiments are directed to upward-firing speakers that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The upward firing driver is tilted at an inclination angle of approximately 20 degrees to the horizontal axis of the speaker and separate height and direct terminal connections are provided to interface to an adaptive audio rendering system.Type: GrantFiled: June 2, 2015Date of Patent: August 6, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Brett G. Crockett, Alan J. Seefeldt, C. Phillip Brown
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Patent number: 10362386Abstract: The present invention relates to a loudspeaker enclosure housing a sealed acoustic suspension chamber. In the sealed acoustic suspension chamber are arranged a driver and a passive acoustic diaphragm on opposite sides of an inner surface of the sealed acoustic suspension chamber. The loudspeaker enclosure also houses a first band-pass chamber connected to the sealed acoustic suspension chamber by the passive acoustic diaphragm.Type: GrantFiled: February 12, 2016Date of Patent: July 23, 2019Assignee: Keyofd AktiebolagInventor: Rohan Jaguste
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Patent number: 10321211Abstract: A speaker system is disclosed for providing customised acoustical wavefronts with vertical and horizontal pattern control and amplitude and phase control. The system including a speaker housing (1) having therein at least a first array (2) of high frequency driver segments (3) and at least a secondary array (4) of low frequency driver segments (5) disposed behind said first array (2), said first array having sufficient space between said driver segments (3) to allow acoustic transparency whereby a wavefront from said secondary array (4) can substantially pass through said first array (2).Type: GrantFiled: October 9, 2015Date of Patent: June 11, 2019Inventors: David Curtinsmith, Paul Anthony Childs, Erin Curtinsmith
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Patent number: 10291990Abstract: A unibody piston and former for a speaker. The unibody piston and former including a piston having a sound radiating portion and a transition portion radially outward to the sound radiating portion, the sound radiating portion and the transition portion having a first interior angle that is less than one-hundred and eighty degrees. The unibody piston and former further including a former extending from the transition portion, the former and the transition portion forming a second interior angle, and the former and the piston are a unibody structure.Type: GrantFiled: October 26, 2016Date of Patent: May 14, 2019Assignee: Apple Inc.Inventors: Alexander V. Salvatti, Matthew A. Donarski, Paulina Mustafa
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Patent number: 10158938Abstract: A horn speaker improves ambience and sound quality by minimizing the transmission of sound diffusion and noise while maximizing the transmission of source sound generated by a speaker unit. The sound emitted by the speaker unit is collected in a seating groove and discharged through a discharge outlet of the horn speaker by integrally forming a plurality of horns in primary and secondary cases of the horn speaker enclosure. A simplified structure reduces the size of the horn speaker and difficulty associated with its assembly. The reproduction band of sound can be extended by forming a horn in a duct structure and adding sound pressure by combining it with sound emitted from the resonance of the duct in forward and backward directions. The amplitude of the resonance point is reduced in the same band and consequently advantageously reduces distortion of the sound.Type: GrantFiled: July 27, 2017Date of Patent: December 18, 2018Assignees: Electronic Controls Company, Sung Ju Sound Corp.Inventors: Dong Uk Jang, Brian Olsen
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Patent number: 10051362Abstract: A loudspeaker device is provided, including a first speaker module, a second speaker module, and a third speaker module. The first speaker module includes first, second, third, fourth, and fifth speaker units facing different directions. The second speaker module includes a sixth speaker unit, and the third speaker module includes a seventh speaker unit. The first, second, third, fourth, fifth, sixth, and seventh speaker units are arranged along a central axis of the loudspeaker device, and the output sound frequencies of the first, second, and third speaker units are less than those of the fourth, fifth, sixth, and seventh speaker units.Type: GrantFiled: March 1, 2017Date of Patent: August 14, 2018Inventor: Leslie C. Koo
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Patent number: 10015584Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to a shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and describe may be placed on reflective surfaces without sever audio coloration caused by reflected sounds.Type: GrantFiled: June 14, 2017Date of Patent: July 3, 2018Assignee: APPLE INC.Inventors: Martin E. Johnson, Simon K. Porter, Suzanne Hardy, John H. Sheerin
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Patent number: 9930444Abstract: This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.Type: GrantFiled: July 13, 2017Date of Patent: March 27, 2018Assignee: Apple Inc.Inventors: Craig M. Stanley, Simon K. Porter, John H. Sheerin, Glenn K. Trainer, Jason C. Della Rosa, Ethan L. Huwe, Sean T. McIntosh, Erik L. Wang, Christopher J. Stringer, Molly J. Anderson
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Patent number: 9913035Abstract: A speaker system may include a dome-shaped shell defining an internal cavity, a receiver configured to receive audio signals from a wireless-enabled device and positioned in the internal cavity, and a plurality of speakers positioned at least partially within the internal cavity and in audio communication with the receiver, wherein the wireless receiver and speakers are configured to project audio outward of the dome-shaped shell. At least some of the plurality of speakers are facing outward of the dome-shaped shell. Some of the plurality of speakers could also be downward facing. The shell can take the form of a sports helmet.Type: GrantFiled: June 30, 2017Date of Patent: March 6, 2018Assignee: Audio Icons, LLCInventors: Kevin Clark, Ted Mayer
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Patent number: 9788121Abstract: A flat plate bass loudspeaker comprising a flat plate diaphragm, at least three driving units and a housing. The driving unit comprises a voice coil unit and a magnetic circuit unit; the voice coil units are dispersedly coupled to one side of the diaphragm near the housing; mounting holes for accommodating and fixing the magnetic circuit units, and voice outlet holes penetrating through the housing are arranged on the housing; the number and position of the mounting holes are corresponding to those of voice coils attached to the spherical top of the diaphragm; and ratio of the total area of the voice outlet holes to the orthographic projection area of the diaphragm on the housing is in a range less than 0.9. The flat plate bass loudspeaker provided by the present invention can avoid the problems occurred in thick and heavy voice coils and excessive magnet performance.Type: GrantFiled: May 31, 2013Date of Patent: October 10, 2017Assignee: GOERTEK INC.Inventors: Chao Jiang, Jianbin Yang, Zhi Li, Qijin Jiao
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Patent number: 9769572Abstract: A tablet woofer and an electronic device using same. The woofer comprises a vibrating diaphragm, at least four mutually independent drive units, and a housing. The vibrating diaphragm is a rectangle shape, and comprises a rigid arc portion at the central position and a spiral curve portion at the periphery; the drive unit comprises a voice coil unit and a corresponding magnetic circuit unit, and four angles of the arc portion of the vibrating diaphragm are each combined with one voice coil unit; the housing is provided with mounting holes for accommodating and mounting the drive units, and sound holes penetrating through the mounting plane; the spiral curve portion of the vibrating diaphragm is fixedly connected to the periphery of the upper side of the housing.Type: GrantFiled: May 31, 2013Date of Patent: September 19, 2017Assignee: Goertek Inc.Inventors: Chao Jiang, Jianbin Yang, Zhi Li, Qijin Jiao
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Patent number: 9712917Abstract: A speaker system may include a dome-shaped shell defining an internal cavity, a receiver configured to receive audio signals from a wireless-enabled device and positioned in the internal cavity, and a plurality of speakers positioned at least partially within the internal cavity and in audio communication with the receiver, wherein the wireless receiver and speakers are configured to project audio outward of the dome-shaped shell. At least some of the plurality of speakers are facing outward of the dome-shaped shell, wherein the at least some of the plurality of speakers are at least partially upward and partially forward facing and configured to project audio outward of the dome-shaped shell in at least a partially forward direction. Some of the plurality of speakers could also be forward facing and downward facing. The shell can take the form of a sports helmet.Type: GrantFiled: August 24, 2015Date of Patent: July 18, 2017Assignee: Audio Icons, LLCInventors: Kevin Clark, Ted Mayer
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Patent number: 9668059Abstract: This invention discloses a kind of modular speaker component. A characteristic is that it includes a fixed part. This fixed part has a thin-walled structure. An active loudspeaker unit and passive diaphragm units are installed on it. Another characteristic is that it includes a sealed connection part. This sealed connection part is fixed on the said fixed part and it has sealing material; the said sealed connection part aligns, connects and secures the said fixed part to the opening of a rigid container. This causes the said fixed part and the rigid container to jointly form an airtight resonant space. The fixed part integrates the active loudspeaker unit and passive diaphragm units on top and combines with the sealed connection part fixed on it to form overall a universal high sound quality module that is unaffected by the rigid container.Type: GrantFiled: March 22, 2013Date of Patent: May 30, 2017Assignee: TGI Technology Private LimitedInventor: Shihuang Li
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Patent number: 9432764Abstract: A loudspeaker and a method of operation which allow for the production and emphasis of extremely low bass tones. The loudspeaker generally is formed from a loudspeaker driver cone of conventional type which is placed in a very small enclosure with two waveguides attached thereto. A smaller balance waveguide is positioned forward of the face of the cone and a larger tuning waveguide is positioned to the side of the cone. The cross-sectional area of the aperture connections of both waveguides to the enclosure are small compared to the cross-sectional area of the loudspeaker driver cone.Type: GrantFiled: November 11, 2014Date of Patent: August 30, 2016Inventor: William Eugene Wheeler
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Patent number: 8995695Abstract: A speaker system includes: a first speaker unit having a predetermined directivity angle in the horizontal direction; and a pair of second speaker units which are disposed opposite to each other with the first speaker unit sandwiched between them when viewed in the vertical direction and which have a directivity angle in the horizontal direction greater than the directivity angle of the first speaker unit, wherein distances from the center of the first speaker unit to the centers of the pair of second speaker units are equal to each other, and the first speaker unit and the pair of second speaker units are disposed so as to face toward the same direction.Type: GrantFiled: October 25, 2011Date of Patent: March 31, 2015Assignee: Sony CorporationInventors: Yoshio Ohashi, Kazuko Yamagishi, Yoshiyuki Kaku, Yoshihiro Iwami, Shin Yamaguchi
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Patent number: 8750540Abstract: An omnidirectional speaker having a high frequency driver, which generates sound over a high frequency range and which has a first diameter, and a high frequency waveguide having a second diameter larger than the first diameter. A first midrange driver and a second midrange driver have a third diameter and a fourth diameter, respectively. Each midrange driver generates sound over a middle frequency range and the first midrange driver faces the second midrange driver. First and second midrange waveguides have a fifth diameter and a sixth diameter, respectively, and correspond to the first and second midrange drivers, respectively. The fifth diameter is larger than the third diameter and the sixth diameter is larger than the fourth diameter. Both of the midrange frequency waveguides are positioned between the first midrange driver and the second midrange driver so as to block a direct path from the first midrange driver to the second midrange driver.Type: GrantFiled: October 14, 2010Date of Patent: June 10, 2014Assignee: Dream Audiolab Pte. Ltd.Inventor: Kok Leong Tan
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Patent number: 8515102Abstract: A line array speaker provides highly uniform frequency response throughout a wide listening field, while also reducing distortion and improving fidelity, clarity, and output level. In a symmetrical embodiment, central apertures are straddled by a sequential pairs of sets of apertures. The straddling pairs emit frequencies in the next lower frequency band relative to the frequency band of the immediately preceding frequency band apertures. In an asymmetrical embodiment, sequential frequency bands are emitted by adjacent sets of apertures rather than straddling pairs of sets of apertures. Each of the apertures may be a loudspeaker cone, one or more straight slots, one or more arbitrarily curved slots, one or more arbitrarily angled slots, one or more holes or the mouth of a horn. The speaker may have a front baffle which is a flat panel or multiple facets arranged in one or multiple recesses across a front of the speaker.Type: GrantFiled: July 16, 2012Date of Patent: August 20, 2013Inventor: Jon J. Waller
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Patent number: 8511422Abstract: A flexible multiple speaker support apparatus is provided for supporting a plurality of speakers therein and includes a flexible, hollow speaker support unit which includes a plurality of open, sound emission channels. The speakers are housed within the flexible, hollow speaker support unit, and the speakers are placed in registration with the open, sound emission channels. With one embodiment of the invention, the flexible, hollow speaker support unit includes a flexible, tubular speaker support member, and the flexible, tubular speaker support member includes a plurality of the open, sound emission channels. The speakers are placed in registration with the open, sound emission channels. With another embodiment of the invention, a suspension bracket assembly is connected to the flexible, hollow speaker support unit for supporting the flexible, hollow speaker support unit in a desired orientation from a ceiling, wall or other surface.Type: GrantFiled: February 3, 2011Date of Patent: August 20, 2013Inventor: Steven L. Adams
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Patent number: 8284977Abstract: A method and apparatus for a multi-chamber ported stereo speaker is disclosed. The stereo speaker is a single unit with multi-chambers in an enclosure box. The multi chamber ported speaker comprises an enclosure housing a shared acoustic chamber having an external port for allowing air external of the enclosure box to flow into the shared acoustic chamber, and at least two additional chambers comprising a corresponding internal port in each additional chamber for forming an air pass from each additional chamber with the shared chamber, each additional chamber comprising a corresponding driver mounted through a wall of the chamber and enclosure box for forming the ported speaker.Type: GrantFiled: January 24, 2008Date of Patent: October 9, 2012Assignee: Creative Technology LtdInventor: Kok Huan Ong
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Patent number: 8229155Abstract: An improved audio speaker assembly is provided for directional adjustability of the woofer or driver. The assembly includes a housing comprising a baffle, a swivel, a swivel cup, and a retainer. The driver is mounted in the swivel. The swivel and swivel cup are mounted between the baffle and the retainer. The swivel is pivotal approximately 60° relative to the swivel cup, and is rotatable 360° relative to the baffle, thereby selectively positioning the driver in a desired direction. A pair of screws extend through the baffle and into the retainer, and can be tightened so as to lock or clamp the swivel and driver in the selected position, and preclude directional movement due to vibrations, temperature, and humidity.Type: GrantFiled: May 7, 2009Date of Patent: July 24, 2012Assignee: Three Amigos LLCInventors: Ronald D. Maurer, Sean P. McDermott, Richard P. Apgar
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Patent number: 8224001Abstract: A line array speaker provides highly uniform frequency response throughout a wide listening field, while also reducing distortion and improving fidelity, clarity, and output level. In a symmetrical embodiment, central apertures are straddled by a sequential pairs of sets of apertures. The straddling pairs emit frequencies in the next lower frequency band relative to the frequency band of the immediately preceding frequency band apertures. In an asymmetrical embodiment, sequential frequency bands are emitted by adjacent sets of apertures rather than straddling pairs of sets of apertures. Each of the apertures may be a loudspeaker cone, one or more straight slots, one or more arbitrarily curved slots, one or more arbitrarily angled slots, one or more holes or the mouth of a horn. The speaker may have a front baffle which is a flat panel or multiple facets arranged in one or multiple recesses across a front of the speaker.Type: GrantFiled: December 21, 2007Date of Patent: July 17, 2012Inventor: Jon J. Waller
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Patent number: 8167083Abstract: A reconfigurable loudspeaker enclosure. A loudspeaker enclosure, includes a first section that includes a mounting location for an acoustic driver. The mounting location includes a first section mating surface and first section walls, a second section that includes an exit for an acoustic element from which acoustic energy can be radiated. The second section includes a second section mating surface and second section walls. The first section mating surface and the second section are rotatably coupled so that in a first configuration the first section walls and the second section walls are substantially continuous, and so that in a second configuration, the walls of the two sections are substantially non-continuous or perpendicular or both and so that in both the first configuration and the second configuration the two sections are coupled acoustically.Type: GrantFiled: May 18, 2010Date of Patent: May 1, 2012Assignee: Bose CorporationInventors: Roman N. Litovsky, Chester Smith Williams
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Patent number: 8144900Abstract: A speaker system which includes a housing and a linear array of a plurality of sound-generating transducers. A housing is in the form of a cylinder having a longitudinal axis and substantially circular cross-section. The linear array of sound-generating transducers are mounted upon a substantially planar chord configured within a sidewall of the cylinder.Type: GrantFiled: January 3, 2006Date of Patent: March 27, 2012Inventors: J. Craig Oxford, D. Michael Shields
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Patent number: 8094860Abstract: The present invention generally relates to stereo sound boxes, and more particularly to a sound box assembly containing micro stereo sound boxes joined magnetically together. The sound box assembly contains at least a pair of sound boxes with magnets of opposite polarities, respectively, so that the sound boxes could be magnetically attracted together for convenient transportation and then later could be easily detached for placing apart to achieve superior stereo sound.Type: GrantFiled: December 30, 2008Date of Patent: January 10, 2012Inventor: Tian-Xu Huang
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Patent number: 8050432Abstract: To conclude, in a preferred embodiment in accordance with the invention, the sound system comprises two loudspeakers (LA, LB) which mask their spectral signatures at the ear (C1) of the listener by positioning the two loudspeakers (LA, LB) such that their maxima of the polar radiation patterns have directions which at least differ 30 degrees, and which generate coherent sound in the direction of the listener. These two aspects together cause different gradients of the sound of the two loudspeakers (LA, LB) at the same ear (C1) of the listener, while the information which reaches the ear (C1) from the spatially shifted different loudspeakers (LA, LB) is still coherent and not blurred by diffusion. The loudspeakers LA, LB should be spaced apart to obtain sufficient different gradients of their sound at the same ear.Type: GrantFiled: March 21, 2006Date of Patent: November 1, 2011Assignee: Bloomline Acoustics B.V.Inventor: Leendert De Klerk
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Patent number: 7886867Abstract: A flexible multiple speaker support apparatus is provided for supporting a plurality of speakers therein and includes a flexible, hollow speaker support unit which includes a plurality of open, sound emission channels. The speakers are housed within the flexible, hollow speaker support unit, and the speakers are placed in registration with the open, sound emission channels. With one embodiment of the invention, the flexible, hollow speaker support unit includes a flexible, tubular speaker support member, and the flexible, tubular speaker support member includes a plurality of the open, sound emission channels. The speakers are placed in registration with the open, sound emission channels. With another embodiment of the invention, a suspension bracket assembly is connected to the flexible, hollow speaker support unit for supporting the flexible, hollow speaker support unit in a desired orientation from a ceiling, wall or other surface.Type: GrantFiled: June 29, 2006Date of Patent: February 15, 2011Inventor: Steven L. Adams
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Patent number: 7577265Abstract: A speaker system includes a first, second and third sound radiators with the second sound radiator positioned medially between the first and third sound radiators. The radiators project first, second and third sound vectors respectively, with the second sound vector oriented vertically and the first and third sound vectors directed generally toward each other at angles above the horizontal so as to intersect at an inclusive angle between 90 and 170 degrees. Sound from the first and third radiators impinges on the second radiator so as to cause an echo effect improving sound spaciousness. The first and third radiators are placed at different angles relative to the listener and at different heights as well to improve time delays in the two radiated signals.Type: GrantFiled: October 15, 2004Date of Patent: August 18, 2009Inventor: Ira Pazandeh
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Patent number: 7553288Abstract: The present invention is directed to a pad and sound transmission system which is adapted to directly transmit audible sound waves into the body at high intensity levels. In one embodiment, the subject invention includes a back pad and a seat pad. Each pad includes a speaker module having an acoustic speaker disposed within the pad and surrounded by a plurality of different layers.Type: GrantFiled: September 16, 2004Date of Patent: June 30, 2009Inventor: Daniel E. Cohen
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Patent number: 7418104Abstract: A speaker system having a first speaker, a second speaker, and a housing having a first mounting surface to which the first speaker is mounted and a second mounting surface to which the second speaker is mounted. The first mounting surface and the second mounting surface are substantially planar and abut one another to form an included angle of between 120 degrees and 140 degrees. By so arranging the mounting surfaces, the sound produced by each speaker is allowed to mix to provide a full sound.Type: GrantFiled: August 6, 2002Date of Patent: August 26, 2008Inventor: Robert G. Spinale
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Patent number: 7350618Abstract: A satellite speaker system includes a side firing low mid driver mounted in a sub-enclosure which is vented into a second sub-enclosure through an acoustic resistance vent and to a third sub-enclosure through a variable aperture second vent. The vents further serve as pivots to allow the side-firing speaker to be rotated through a predetermined range, simultaneously varying the aperture of the second vent. The pivots are isolated by o-rings to provide an airtight seal to the sub-enclosures, as well as to provide vibration control. Third, fourth and fifth resistively damped vents allow the first and second sub-enclosure to establish acoustic communication with the environment. The front firing driver/s that reproduces the mid and high frequencies are mounted in a fourth sub-enclosure.Type: GrantFiled: April 1, 2005Date of Patent: April 1, 2008Assignee: Creative Technology LtdInventors: Aik Hee Goh, Susimin Suprapmo, Kar Choon Ng
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Patent number: 7333626Abstract: A system is disclosed for changing a coverage angle of sound produced from a loudspeaker system. The loudspeaker system includes an enclosure that projects sound at a predetermined angle. A sound integrator includes an inner surface positioned adjacent to a mid-range frequency sound source. An outer surface of the sound integrator includes a planar and a curved surface. The surfaces control the angle which sound radiates from the loudspeaker.Type: GrantFiled: February 28, 2006Date of Patent: February 19, 2008Assignee: Harman International Industries, IncorporatedInventors: Scott M. Opie, Mark E. Engebretson, Yoshiyuki Takeuchi
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Patent number: 7225895Abstract: A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top edge of the voice coil bobbin with that ring mating with a flat diaphragm at a right angle directly above the top edge of the bobbin. The outer edge of the diaphragm connects to the inner edge of the surround at the point where a sloping side of the “triangle” is also connected and slopes down to the top edge of the bobbin where the opposite end is connected. The outer portion of the diaphragm provides the third side of the triangle.Type: GrantFiled: January 8, 2004Date of Patent: June 5, 2007Inventor: Joseph Yaacoub Sahyoun
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Patent number: 7185735Abstract: A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top edge of the voice coil bobbin with that ring mating with a flat diaphragm at a right angle directly above the top edge of the bobbin. The outer edge of the diaphragm connects to the inner edge of the surround at the point where a sloping side of the “triangle” is also connected and slopes down to the top edge of the bobbin where the opposite end is connected. The outer portion of the diaphragm provides the third side of the triangle.Type: GrantFiled: February 19, 2004Date of Patent: March 6, 2007Inventor: Joseph Yaacoub Sahyoun
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Patent number: 7134523Abstract: This invention provides a radiation boundary integrator (“RBI”) for integrating sound radiation from mid-range and high-frequency sources in multi-way loudspeakers. The RBI is a substantially solid boundary that is placed over the mid-range speakers to provide smooth, wave-guiding side walls to control the angular radiation of the high-frequency sound waves emanating from the high-frequency sound sources. To allow the mid-range frequency sound waves generated from mid-range sound sources to pass through the RBI, the RBI is designed with openings. To further prevent the possibility of having high-frequency sound radiate through the openings in the RBI, the RBI may be designed with porous material in the openings of the RBI. The porous material would be transparent to the mid-range sound radiation, but would prevent the high-frequency sound radiation from being disturbed by the openings in the RBI.Type: GrantFiled: November 22, 2002Date of Patent: November 14, 2006Assignee: Harman International Industries, IncorporatedInventor: Mark Engebretson
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Publication number: 20020134613Abstract: A speaker system includes a first speaker; a second speaker; and a first spacer for separating the first speaker and the second speaker from each other so that the first speaker and the second speaker face each other. The first speaker and the second speaker are located so that opposing faces of the first speaker and the second speaker output sounds of an identical phase. The first speaker, the second speaker and the first spacer form a first sound path through which the sounds output from the opposing faces of the first speaker and the second speaker pass. The speaker system according to the present invention includes n number speakers and (n−1) number of spacers and can be arranged so that the opposing faces of even-numbered speakers and odd-numbered speakers output sounds of an identical phase.Type: ApplicationFiled: January 22, 2002Publication date: September 26, 2002Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Takashi Ogura, Kosaku Murata
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Patent number: 6118883Abstract: An improved loudspeaker system which increases low frequency directivity and minimizes directivity discontinuities during frequency transitions includes a first low frequency transducer, a second low frequency transducer, a middle frequency transducer assembly and a middle frequency horn assembly having a small input aperture and a large output aperture. The middle frequency transducer assembly is attached at the small aperture of the horn assembly and directs a middle frequency acoustical signal into the horn assembly. The low frequency transducers and are mounted to opposite interior surfaces, preferably the top and bottom surfaces, of the horn assembly, and direct a low frequency acoustical signal into the horn assembly. A composite acoustical signal directed out of the horn assembly from the large aperture. The distance D.sub.1, measured from the upper transducer voice coil to the lower transducer voice coil, is substantially equal to 0.9048 of the distance D.sub.Type: GrantFiled: September 24, 1998Date of Patent: September 12, 2000Assignee: Eastern Acoustic Works, Inc.Inventor: Jeffrey A. Rocha
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Patent number: RE49437Abstract: This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.Type: GrantFiled: April 27, 2018Date of Patent: February 28, 2023Assignee: APPLE INC.Inventors: Craig M. Stanley, Simon K. Porter, John H. Sheerin, Glenn K. Trainer, Jason C. Della Rosa, Ethan L. Huwe, Sean T. McIntosh, Erik L. Wang, Christopher J. Stringer, Molly J. Anderson