On Front Side Of Diaphragm Patents (Class 381/347)
  • Patent number: 10194224
    Abstract: The present invention provides an inflatable device that floats on water having an inflatable body for flotation; and a built-in speaker unit being secured in a first compartment in the body. In addition, the first compartment and the speaker may be in the headrest, or armrest, or in a removable pillow. Further, the battery box is secured in a second compartment in the body, wherein the battery is rechargeable and the speaker unit is connected to the battery as a power source, or to a solar power source. The present invention also provides a flotation device that floats on water having a foam body for flotation; and a built-in speaker unit being secured in a first compartment in the body. In addition, the first compartment and the speaker may be in the headrest, or armrest, or in a removable pillow. Further, the battery box is secured in a second compartment in the body, wherein the battery is rechargeable and the speaker unit is connected to the battery as a power source, or to a solar power source.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: January 29, 2019
    Inventors: Leon Azar Cohen, Peter Ragonetti
  • Patent number: 8965033
    Abstract: Apparatus and methods are disclosed for acoustic optimization. An example playback device includes a first transducer to at least one of output sound waves and receive sound waves, a second transducer to at least one of output sound waves and receive sound waves, and an acoustic grille positioned in relation to the first transducer, where the acoustic grille is to reflect sound waves received at a first angle of incidence.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 24, 2015
    Assignee: Sonos, Inc.
    Inventor: Daniel C. Wiggins
  • Patent number: 8953830
    Abstract: A horn loudspeaker, in particular for reproducing bass sound in public address systems, in which the horn (23) is mounted directly to the driver element (21) without any intervening compression chamber. The back side of the driver element (21) is covered by a back chamber (24) designed with walls of a semi-permeable material. The walls may be perforated or made of a “leaky” material such as cell foam with open structure, or a fibrous material. The “leaky” back chamber will prevent the build up of high pressures in the back chamber at large cone excursions. The horn loudspeaker is suitable for stacking in groups of two or more, so as to produce a sound source scalable for reproducing any frequency range heard by humans in public address systems or hi-fi systems. Due to the back chamber design, the horn loudspeaker, for high frequencies especially in conical horn shaped versions, can be stacked close together.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: February 10, 2015
    Inventor: Rune Skramstad
  • Patent number: 8718309
    Abstract: In the invention a speaker apparatus acoustically combines the earpiece and hands free functions. Thus a speaker has acoustically separated functions for acting as the earpiece and as the hands free. The speaker apparatus has a back cavity having an outlet so that the damped sound of the outlet operates as the earpiece. The front of the speaker apparatus operates as the louder hands free.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: May 6, 2014
    Assignee: Nokia Corporation
    Inventors: Anders Weskström, Benedict Slotte
  • Patent number: 8515101
    Abstract: A bending vibration type sound transmitter includes a plurality of vibrating bodies that perform resonant vibration and two lids. The plurality of vibrating bodies is fastened between the two lids.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 20, 2013
    Assignee: NEC Corporation
    Inventor: Hiroshi Shiba
  • Patent number: 8509459
    Abstract: Systems and methods for a noise canceling microphone and microphone system are disclosed. The system generally includes a housing with a printed circuit board forming a surface of the housing. Electrical terminals are located on an exterior side of the printed circuit board. A diaphragm is disposed within the housing. A first port in the housing remote from the printed circuit board provides access to one face of the diaphragm first face and a second port disposed in the housing remote from the printed circuit board provides access to a second face of the diaphragm.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: August 13, 2013
    Assignee: Plantronics, Inc.
    Inventor: Osman K. Isvan
  • Patent number: 8467549
    Abstract: An audio information processing apparatus for processing input audio information is adapted to input an audio signal composed of front area audio information that should be input to a front speaker and rear area audio information that should be input to a plurality of speakers. A mixer is adapted to mix the rear area audio information in accordance with an instruction from an instruction circuit.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: June 18, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taizo Hori
  • Patent number: 8422713
    Abstract: A loudspeaker system for the reproduction of acoustic waves of music, sound and speech in a substantially circular horizontal plane. The loudspeaker system includes multiple spherical enclosures, each enclosure housing a pair of transducers, each pair of transducers producing acoustic waves of a predetermined frequency range.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: April 16, 2013
    Inventors: J. Craig Oxford, D. Michael Shields
  • Patent number: 8139784
    Abstract: A compound loudspeaker comprises an acoustically radiating first diaphragm and an acoustically radiating second diaphragm. The first and second diaphragms are substantially coaxial and at least part of the second diaphragm is situated radially outwards of the first diaphragm. There is a gap situated between the first and second diaphragms, and a seal is provided in the gap, thereby preventing or hindering the passage of air through the gap. By providing the seal, the invention solves the problem of audible turbulent airflow through the gap.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: March 20, 2012
    Assignee: GP Acoustics (UK) Limited
    Inventor: Jack Anthony Oclee-Brown
  • Patent number: 8135149
    Abstract: A wireless communication device includes a speaker grille, a built-in speaker provided behind the speaker grille, and an output amplifier connected to the built-in speaker. A voltage applied to the output amplifier is increased to a level higher than the level of voltage applied to the output amplifier while audio signals are being produced, and instead of the audio signals, low-frequency continuous signals are applied to the output amplifier. By increasing the voltage applied to the output amplifier to a level higher than the level of voltage applied to the output amplifier while audio signals are being produced, the amplitude of the voltage applied to the speaker is increased. Also, instead of the audio signals, low-frequency continuous signals are applied to the output amplifier so that the speaker produces a higher sound pressure than while audio signals are being produced to discharge water in the speaker grille under the sound pressure.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: March 13, 2012
    Assignee: Icom Incorporated
    Inventors: Akihide Yoshida, Yoshio Sekiyama
  • Patent number: 8130994
    Abstract: A waveguide configured to function as a high frequency waveguide for a high frequency sound source mounted to the waveguide, and to function as an acoustical low pass filter for a low frequency sound source mounted behind the waveguide in a multi-way loudspeaker system. The waveguide includes openings that overlay the vibrating surface of the low frequency source. The openings are configured by selection of various geometrical parameters to tailor filtering characteristics as desired.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 6, 2012
    Assignee: Harman International Industries, Incorporated
    Inventors: Douglas J. Button, Alexander V. Salvatti
  • Patent number: 8111853
    Abstract: In one embodiment, a dual-mode earphone is provided, comprising a first earbud including a speaker with a diaphragm and at least one acoustic port in front of the diaphragm, and a cap in front of the speaker. The speaker or the cap is configured to move relative to the other for opening and closing the acoustic port in one embodiment and a movable seal is provided in another embodiment. The earphone further includes a second earbud housing operably coupled to the first earbud opposite the speaker. A method for providing acoustic equalization in a dual-mode earphone is also disclosed.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: February 7, 2012
    Assignee: Plantronics, Inc
    Inventor: Osman Kemal Isvan
  • Patent number: 8045722
    Abstract: Provided are a method and apparatus for controlling a sound field through an array speaker. The method includes calculating a coefficient of a filter that controls sound pressure of an input signal, based on a sound pressure ratio of a suppression area that suppresses sound emitted from an array speaker and an emphasis area that emphasizes the sound, and sound pressure efficiency in the emphasis area, generating a plurality of output signals that focuses the sound to the emphasis area by filtering the input signal based on the calculated coefficient of the filter, and outputting a sound field controlled sound based on the generated plurality of output signals. Accordingly, a listener in a predetermined direction and distance from the array speaker can clearly hear sound, without wearing an earphone or a headset so as to focus the sound only to the listener.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-woo Choi, Young-tae Kim, Jung-ho Kim, Sang-chul Ko
  • Patent number: 8036411
    Abstract: There are provided a speaker for outputting sound, a plurality of sound output holes formed in a reverse side cabinet, a mesh sheet, a two-sided tape, and a transparent sheet. The sound output holes, the mesh sheet, the two-sided tape, and the transparent sheet control the direction of sound output from the speaker.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 11, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenzoh Daimon, Kimiaki Imai
  • Patent number: 8027500
    Abstract: A narrow profile speaker unit comprises at least one speaker outputting sound towards an internal surface and through a duct with an output terminus, such as a slot, having a narrow dimension, effectively changing the cross-section of the speaker's audio output wave. A pair of speakers may face one another, outputting sound towards a common output slot. Multiple pairs of speakers may be used to form an inline speaker unit for increased sound output. A slotted speaker unit may include multiple speakers facing the same direction, towards a groundplane or reflecting surface, and having parallel apertures for allowing sound radiation. The speaker units may be integral with or attached to electronic appliances such as desktop computers or flatscreen devices, or may be used in automobiles or other contexts.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: September 27, 2011
    Assignee: THX Ltd.
    Inventor: Lawrence R. Fincham
  • Patent number: 8005250
    Abstract: One embodiment of a microphone housing having at its base a cylindrical solid section (4) containing circuit boards (3) and on which is mounted transducer (2) and acoustically permeable basket (1). The basket is made of rigid, conductive foam providing electrical shielding, mechanical protection and wind and pop screening, without appreciably altering the acoustical characteristics of the transducer. Another embodiment is also described and shown.
    Type: Grant
    Filed: December 20, 2008
    Date of Patent: August 23, 2011
    Assignee: Josephson Engineering, Inc.
    Inventors: David Lane Josephson, David M. Gordon, Kelly Q. Kay
  • Patent number: 7912238
    Abstract: A speaker attenuation system includes an attenuating member comprised of suitable material and having a size and a shape capable of attenuating a speaker when positioned in a central beam region of the speaker. A positioning mechanism is capable of positioning the attenuating member predominantly in the central beam region of the speaker in such a manner that it is between the speaker and an audience in a performance setting. The suitable material, such as open cell foam (i.e., acoustic foam), preferably has a property that it is capable, at one or more thicknesses, of reducing amplitudes of a majority of frequencies between one-thousand and eight-thousand Hertz by at least six decibels without reducing amplitudes of any frequencies in that range by more than eighteen decibels. Accordingly, the “beaminess” of the speaker can be reduced without creating a “hole in the sound.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: March 22, 2011
    Inventor: Frank LaMarra
  • Patent number: 7885418
    Abstract: Disclosed is a loudspeaker assembly incorporating innovations resulting in an enclosure of very small volume to which is integrated a large area, shallow and lightweight acoustic diaphragm assembly capable of a natural resonant frequency of a few Hertz. This is achieved by incorporating a vacuum chamber in conjunction with a chamber containing compressed gas or vapor that acts against a movable pressure boundary of changeable area being mechanically coupled with the acoustic radiating diaphragm. In an alternative operating mode, the apparatus also serves as a passive low frequency acoustic attenuator.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: February 8, 2011
    Inventor: William Brian Hallman
  • Patent number: 7851247
    Abstract: A method of fabricating a micro-electromechanical system microphone structure is disclosed. First, a substrate defining a MEMS region and a logic region is provided, and a surface of the substrate has a dielectric layer thereon. Next, at least one metal interconnect layer is formed on the dielectric layer in the logic region, and at least one micro-machined metal mesh is simultaneously formed in the dielectric layer of the MEMS region. Therefore, the thickness of the MEMS microphone structure can be effectively reduced.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: December 14, 2010
    Assignee: United Microelectronics Corp.
    Inventor: Hui-Shen Shih
  • Patent number: 7668331
    Abstract: An improved-fidelity speaker system is presented. The sound system includes a frame and a pair of matching speakers. The frame is formed to hold a first speaker and a second speaker, each having a front side, a back side, and central axis. When attached with the frame, the two speakers are substantially aligned along their central axes in a configuration selected from a group consisting of being mounted in the frame such that the front sides of the speakers are facing away from each other, and being mounted in the frame such that the front sides of the speakers are facing towards each other. When the speakers are operated in unison, a sound wave is generated and pushed outward from the frame and approximately radially from the central axes of the speakers in up to 360 degrees, expanding outward about a plane approximately perpendicular to the central axes.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: February 23, 2010
    Inventor: Wailit Yen
  • Patent number: 7630491
    Abstract: A speaker enhancer for a wireless communication device includes an acoustic chamber forming section that, when the speaker enhancer is mounted to a rear of the wireless communication device, forms a sealed acoustic enclosure along the rear of the wireless communication device; and a speaker engagement section that, when the speaker enhancer is mounted to the rear of the wireless communication device, sealingly engages the rear of the wireless communication device and communicates the rearward-facing, rear-mounted speaker with the sealed acoustic enclosure. In use, rearwardly directed sound emitted from a rearward-facing, rear-mounted speaker travels through the speaker engagement section to the sealed acoustic enclosure, and primary sound from the speaker is emitted through sound leaks in the wireless communication device.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: December 8, 2009
    Assignee: Kyocera Wireless Corp.
    Inventor: Chad Tyler Uyehara
  • Publication number: 20090238391
    Abstract: An audio apparatus includes a speaker having an output surface from which sound waves of the speaker radiate out; and a vibration absorbing member housing the speaker therein. The vibration absorbing member including a vibration absorbing portion attached to the output surface of the speaker, and a fastening portion connecting and surrounding the vibration absorbing portion and sleeves on the speaker configured for attaching the vibration absorbing member to the speaker. The vibration absorbing portion defining a through hole for allowing the sound waves from the speaker to radiate out.
    Type: Application
    Filed: January 7, 2009
    Publication date: September 24, 2009
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) Co., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: TAO WANG
  • Patent number: 7466837
    Abstract: A spherical wave generating diffuser positioned in front of the sound emission side of a sound source. The diffuser comprises an inner horn and an outer horn positioned concentrically around the inner horn. The diffuser generates pseudo-spherical waves centered on the inner horn because the emission speed of the sound waves emitted from between the outer horn and the inner horn are slower than the emission speed of sound waves emitted from within the inner horn.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: December 16, 2008
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takeshi Nakamura
  • Patent number: 7463746
    Abstract: A loudspeaker system having an enclosure having a narrow opening or slot for radiating high frequency acoustic energy. The loudspeaker system has a cover member defining a slot between the cover member and a boundary of a listening space. The loudspeaker system may also include a fixed or adaptive equalizer for modifying frequency response anomalies resulting from the interaction of the acoustic energy, the narrow opening, and the boundary.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: December 9, 2008
    Assignee: Bose Corporation
    Inventors: Gerald F. Caron, George E. P. Chute, Allan S. Copeland, Eric J. Freeman, Doug Kramer
  • Publication number: 20080247583
    Abstract: A speaker attenuation system includes an attenuating member comprised primarily of open cell foam or other suitable material and having a size and a shape operable to attenuate a speaker when positioned in a central beam region of the speaker. A positioning mechanism positions the attenuating member predominantly in the central beam region of the speaker by attaching the attenuating member to the speaker.
    Type: Application
    Filed: October 4, 2007
    Publication date: October 9, 2008
    Inventor: Frank LaMarra
  • Patent number: 7433483
    Abstract: A narrow profile speaker unit comprises at least one speaker outputting sound towards an internal surface and through a duct with an output terminus, such as a slot, having a narrow dimension, effectively changing the cross-section of the speaker's audio output wave. A pair of speakers may face one another, outputting sound towards a common output slot. Multiple pairs of speakers may be used to form an inline speaker unit for increased sound output. A slotted speaker unit may include multiple speakers facing the same direction, towards a groundplane or reflecting surface, and having parallel apertures for allowing sound radiation. The speaker units may be integral with or attached to electronic appliances such as desktop computers or flatscreen devices, or may be used in automobiles or other contexts.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: October 7, 2008
    Assignee: THX Ltd.
    Inventor: Lawrence R. Fincham
  • Patent number: 7333626
    Abstract: 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: Grant
    Filed: February 28, 2006
    Date of Patent: February 19, 2008
    Assignee: Harman International Industries, Incorporated
    Inventors: Scott M. Opie, Mark E. Engebretson, Yoshiyuki Takeuchi
  • Publication number: 20080037814
    Abstract: The present invention is related to sound generating devices such as audio speakers. Prior art audio speakers typically have inertia related distortion. The present invention provides methods and structures to solve the inertia distortion problem by stop-and-forget mechanism using stoppers.
    Type: Application
    Filed: August 9, 2006
    Publication date: February 14, 2008
    Inventor: Jeng-Jye Shau
  • Patent number: 7324654
    Abstract: 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: Grant
    Filed: July 1, 2003
    Date of Patent: January 29, 2008
    Assignee: Harman International Industries, Inc.
    Inventors: Scott M. Opie, Mark E. Engebretson, Yoshiyuki Takeuchi
  • Patent number: 7187105
    Abstract: A transducer includes a Langevin type vibrator, a bending vibrator, and a ring-like member. The Langevin type vibrator has a construction in which a front mass, a cylindrical vibrator, and a rear mass are provided in tandem, and those elements are tightened by a bolt. The bending vibrator is provided apart from the front mass. The ring-like member is provided in outer peripheral portions of the front mass and the bending vibrator to couple the front mass and the bending vibrator to each other. The transducer generates a large sound pressure over a wide frequency band since a sound wave radiation surface is wide and its amplitude amount is large.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: March 6, 2007
    Assignee: NEC Corporation
    Inventor: Hiroshi Shiba
  • Patent number: 7155021
    Abstract: A panel-shaped loudspeaker comprising a panel (1) having a first main surface (1A) and a second main surface (1B) parallel to the first main surface and further comprising an exciter (3) positioned at the first main surface. When the exciter is energized the panel is capable of sustaining bending waves and has a distribution of resonant modes of its natural bending wave vibration, which results in an acoustic radiation. The loudspeaker has a tuning element (17) extending near the second main surface of the panel and positioned opposite the exciter so as to form a resonant cavity (18) between the panel and the exciter.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: December 26, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: David Magda Eddy Corynen
  • Patent number: 7093688
    Abstract: A speaker assembly includes a speaker mounted within a housing having a front plate and a base plate. The speaker is inclined with respect to the front plate. The base plate includes one of an inclined type structure, a convex type structure, a radial rib type structure having radial ribs, and an uneven structure having projections. The front plate includes holes of certain shapes such as having two half holes formed on opposite sides of front plate and communicating with each other through a common opening formed between the two half holes.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: August 22, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae-Eop Lee
  • Publication number: 20040170292
    Abstract: The invention concerns a mobile membrane loudspeaker equipped with a partial closure optimising its radiation. The invention is characterised in that the loudspeaker with mobile diaphragm (19) attached to a rigid frame (15) defining an acoustic emission plane (P) comprises a closure (25) for only one central zone of said emission plane.
    Type: Application
    Filed: January 22, 2004
    Publication date: September 2, 2004
    Inventor: Eric Vincenot
  • Publication number: 20040105565
    Abstract: A loudspeaker system has an extended bass or low frequency response. The loudspeaker system integrates a passive radiator with a transducer. The loudspeaker system also mechanically isolates the passive radiator and the transducer. A support mechanism mechanically grounds vibrations or other forces from the transducer and passive radiator that may interfere or affect the operation of the loudspeaker.
    Type: Application
    Filed: July 15, 2003
    Publication date: June 3, 2004
    Inventors: Aaron L. Butters, Sargam Patel
  • Publication number: 20040052393
    Abstract: A loud speaker enclosure being made in two parts with each of the side panels cut into angle form to assist in angle adjustment, alone with pivot hinges and friction lid supports used to hold it's angled position. The enclosure can be modified to accommodate any design or style of driver boards. In addition to any design of loudspeaker any orientation of enclosing may be incorporated with this invention also. This enclosure can be used with out driver board 5B were by Box B would then operate as a angle adjusting base for Box T.
    Type: Application
    Filed: March 26, 2003
    Publication date: March 18, 2004
    Inventor: Andrew P. Bronson
  • Patent number: 6574344
    Abstract: A directional speaker system includes an enclosure having an inner surface, an outer surface, an open end, and a closed end, a speaker driver directed toward the open end and mounted near the closed end of the enclosure, an in-line phase plug mounted in front of the speaker driver for manipulating the wavefront of sound waves produced by the speaker driver, and a preferably frustoconical shaped wave guide provided between the speaker driver and the open end of the speaker enclosure. A preferably annular space is provided between the enclosure and the wave guide and a plurality of openings are provided between the enclosure at the open end of the enclosure. Out-of-phase sound waves produced by the speaker driver travel into the space and exit the speaker system through the openings.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: June 3, 2003
    Assignee: Soundtube Entertainment, Inc.
    Inventors: David Wiener, Steven Burgess
  • Publication number: 20030095678
    Abstract: The present invention relates to a loudspeaker (480), comprising: a support (483); a sound-generating element (481) mounted to the support for vibration to generate sound; and an electro-active device (485) coupled between the support and the sound-generating element for vibrating the sound-generating element (481) in response to an electrical signal.
    Type: Application
    Filed: October 10, 2002
    Publication date: May 22, 2003
    Inventors: Anthony Hooley, David Henry Pearce, Gareth McKevitt, Mark Richard Shepherd, James Allan, Simon Andrew Longbottom, Ursula Ruth Lenel
  • Patent number: 6470088
    Abstract: A loudspeaker enclosure includes a rectangular cabinet having an acoustical port mounted in one of the vertical walls. A loudspeaker is installed in a bottom wall of the cabinet facing away from an interior volume of the cabinet. A highly resistive acoustic foam is positioned in front of the loudspeaker to restrict the direct radiation of the loudspeaker, so that the usable acoustic radiation emanates from the acoustical port.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: October 22, 2002
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventor: Wayne M. Schott
  • Publication number: 20020118854
    Abstract: A loudspeaker enclosure includes a rectangular cabinet having an acoustical port mounted in one of the vertical walls. A loudspeaker is installed in a bottom wall of the cabinet facing away from an interior volume of the cabinet. A highly resistive acoustic foam is positioned in front of the loudspeaker to restrict the direct radiation of the loudspeaker, so that the usable acoustic radiation emanates from the acoustical port.
    Type: Application
    Filed: December 27, 2000
    Publication date: August 29, 2002
    Applicant: PHILPS ELECTRONICS NORTH AMERICA CORPORATION
    Inventor: Wayne M. Schott
  • Publication number: 20020114484
    Abstract: A loudspeaker system design is disclosed. The system includes a driver with a motor structure that is supported by an integrated basket-enclosure. This loudspeaker system reduces the overall size of the enclosure, and increases the efficiency of the design.
    Type: Application
    Filed: January 4, 2001
    Publication date: August 22, 2002
    Inventors: John D. Crisco, David A. Fitzpatrick, Timothy E. Meeks