Patents by Inventor Timothy A. Gladwin

Timothy A. Gladwin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10433041
    Abstract: An outdoor loudspeaker that is weather resistant and includes environmental lighting is described. The lamp is mounted to a cap at the top of the loudspeaker. An audio driver is mounted below the lamp. A system outdoor loudspeakers is also described. The lighting circuitry and the audio circuitry is separate, e.g., separate conduits and wiring in the loudspeaker. The cap can include a light guide, e.g., a lens centrally mounted in the cap or an opaque cover to direct the light downwardly and outwardly. At least part of the loudspeaker can be mounted underground and, in the case of a sub-woofer, the entire chamber can be mounted below ground.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 1, 2019
    Assignee: Harman International Industries, Incorporated
    Inventors: James Garrett, Fred Tubis, An Duc Nguyen, Aaron L. Butters, Timothy Gladwin
  • Patent number: 10299035
    Abstract: An acoustic lens may improve the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. The acoustic lens (or phase plug) may be acoustically opaque and partially fill the cavity formed by the loudspeaker cone. The acoustic lens may provide an improved frequency response and directivity. The improved loudspeaker may provide an improved listening location, for example, in a vehicle, a room or a concert hall.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 21, 2019
    Assignee: Harman International Industries, Incorporated
    Inventors: Timothy Gladwin, Mark Glazer, Jason Gokavi
  • Publication number: 20170311062
    Abstract: An outdoor loudspeaker that is weather resistant and includes environmental lighting is described. The lamp is mounted to a cap at the top of the loudspeaker. An audio driver is mounted below the lamp. A system outdoor loudspeakers is also described. The lighting circuitry and the audio circuitry is separate, e.g., separate conduits and wiring in the loudspeaker. The cap can include a light guide, e.g., a lens centrally mounted in the cap or an opaque cover to direct the light downwardly and outwardly. At least part of the loudspeaker can be mounted underground and, in the case of a sub-woofer, the entire chamber can be mounted below ground.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 26, 2017
    Inventors: James GARRETT, Fred TUBIS, An Duc NGUYEN, Aaron L. BUTTERS, Timothy GLADWIN
  • Publication number: 20170195783
    Abstract: An acoustic lens may improve the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. The acoustic lens (or phase plug) may be acoustically opaque and partially fill the cavity formed by the loudspeaker cone. The acoustic lens may provide an improved frequency response and directivity. The improved loudspeaker may provide an improved listening location, for example, in a vehicle, a room or a concert hall.
    Type: Application
    Filed: December 28, 2016
    Publication date: July 6, 2017
    Inventors: Timothy GLADWIN, Mark GLAZER, Jason GOKAVI
  • Patent number: 9538268
    Abstract: An improved loudspeaker system includes an asymmetrical array of dissimilar drivers, namely a first driver and a second complementary driver configured in an array and driven in parallel so that the measured on-axis frequency response and the output power (SPL) is improved as compared to a symmetrical array (with similar or matched midrange or mid-bass drivers), while retaining a flat tonal balance. This speaker system and method for voicing was discovered to provide lower distortion, improved frequency response and greater clarity as compared to the prior art or traditional (e.g., MTM) loudspeaker configurations.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: January 3, 2017
    Assignee: DEFINITIVE TECHNOLOGY, LLC
    Inventors: Timothy A. Gladwin, Jason B. Cochrane, David Logan
  • Patent number: 9426576
    Abstract: An electrodynamic acoustic transducer has a diaphragm and a frame with a pole piece carrying a bulbous waveguide tip which reduces or eliminates high frequency distortions caused by destructive interference within the transducer. The bulbous-tip structure clears the moving parts of the transducer and minimizes diffraction of sound energy, extending forward approximately to the plane defined by the outer periphery of the diaphragm when the diaphragm and voice coil are at rest. The bulbous-tip waveguide member extends radially outward above the central radiating area of the transducer diaphragm or cone so as to obscure the center portion of the diaphragm.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: August 23, 2016
    Assignee: Definitive Technology, LLC.
    Inventors: Timothy A Gladwin, Jason B Cochrane
  • Patent number: 9282410
    Abstract: An electro-dynamic loudspeaker transducer's motor structure includes a magnetic circuit having a pole with minimal reluctance that allows the use of larger magnets and thicker front plates, thus generating higher flux density in the voice coil gap. The lower reluctance is achieved by increasing the pole piece's outside diameter at all points outside of the voice coil gap and the area swept out by the voice coil at maximal inward excursion. Increasing the pole's diameter over a substantial amount of the pole's distally projecting length (but not extending into the magnetic gap), provides an increased cross sectional area and a reduced magnetic circuit reluctance.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 8, 2016
    Inventors: Timothy A. Gladwin, Jason B. Cochrane, David D. Logan
  • Publication number: 20150341710
    Abstract: An improved loudspeaker system includes an asymmetrical array of dissimilar drivers, namely a first driver and a second complementary driver configured in an array and driven in parallel so that the measured on-axis frequency response and the output power (SPL) is improved as compared to a symmetrical array (with similar or matched midrange or mid-bass drivers), while retaining a flat tonal balance. This speaker system and method for voicing was discovered to provide lower distortion, improved frequency response and greater clarity as compared to the prior art or traditional (e.g., MTM) loudspeaker configurations.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 26, 2015
    Inventors: Timothy A. GLADWIN, Jason B. COCHRANE, David LOGAN
  • Publication number: 20150172818
    Abstract: An electrodynamic acoustic transducer has a diaphragm and a frame with a pole piece carrying a bulbous waveguide tip which reduces or eliminates high frequency distortions caused by destructive interference within the transducer. The bulbous-tip structure clears the moving parts of the transducer and minimizes diffraction of sound energy, extending forward approximately to the plane defined by the outer periphery of the diaphragm when the diaphragm and voice coil are at rest. The bulbous-tip waveguide member extends radially outward above the central radiating area of the transducer diaphragm or cone so as to obscure the center portion of the diaphragm.
    Type: Application
    Filed: February 25, 2015
    Publication date: June 18, 2015
    Inventors: Timothy A Gladwin, Jason B Cochrane
  • Patent number: 8995697
    Abstract: A forward focused bipolar loudspeaker system includes a front-facing driver array and a rear facing driver array with substantially identical front-facing and rear-facing midrange or mid-bass drivers voiced and driven so that the measured SPL curves of each of the arrays, when measured individually, are tonally balanced. The front array and rear array have substantially identical on-axis and off axis frequency response and the rear array's output power (SPL) is reduced by, preferably, about 6 dB with respect to the output power produced by the front-facing array, while retaining a flat tonal balance for both the front and rear speakers, to produce a sound power ratio of about 2:1 as measured by comparing the front and back SPL levels of the speakers. This bipolar speaker system and method for voicing was discovered to provide greater clarity and improved localization while retaining the spacious envelopment of the bipolar sound field.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: March 31, 2015
    Assignee: Definitive Technology, LLC
    Inventors: Timothy Gladwin, Jason B. Cochrane
  • Publication number: 20150030199
    Abstract: An electro-dynamic loudspeaker transducer's motor structure includes a magnetic circuit having a pole with minimal reluctance that allows the use of larger magnets and thicker front plates, thus generating higher flux density in the voice coil gap. The lower reluctance is achieved by increasing the pole piece's outside diameter at all points outside of the voice coil gap and the area swept out by the voice coil at maximal inward excursion. Increasing the pole's diameter over a substantial amount of the pole's distally projecting length (but not extending into the magnetic gap), provides an increased cross sectional area and a reduced magnetic circuit reluctance.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventors: Timothy A. GLADWIN, Jason B. Cochrane, David D. Logan
  • Patent number: 8724844
    Abstract: The inertial transducer comprises a foot, a modular key, at least one suspension means having at least three contact points, and heat dissipation means comprising multiple heat transfer points. The foot alternatively includes an opening or a cap. The cap may be frangible. Preferably, the foot includes a cylindrical wall that extends within the inertial transducer and the foot's lower surface is coplaner with the lower surface of a housing of the transducer, thereby reducing stack height. The cylindrical wall may or may not be threaded and may accept a shaft from a receiving apparatus used to associate the transducer with a substrate.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: May 13, 2014
    Inventors: Robert Katz, Timothy Gladwin
  • Patent number: 8638968
    Abstract: A high fidelity, low-profile loudspeaker assembly includes an enclosure having a rear panel which is highly thermally conductive. At least one speaker driver is mounted in the enclosure, the driver including a forwardly facing diaphragm driven by a voice coil former carrying a voice coil, and a rearwardly extending motor structure. An aperture is provided in the rear panel to receiving the driver's motor structure, and a thermally conductive gasket seals the rear panel aperture around cup to provide a thermal path from the driver motor to the rear panel for cooling the driver. On one driver embodiment, a generally dome-shaped annular spider surrounds and supports the voice coil former, the spider being connected at its inner periphery to the approximate vertical midpoint of the voice coil former.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: January 28, 2014
    Assignee: DEI Headquarters, Inc.
    Inventor: Timothy A. Gladwin
  • Publication number: 20130083958
    Abstract: The inertial transducer comprises a foot, a modular key, at least one suspension means having at least three contact points, and heat dissipation means comprising multiple heat transfer points. The foot alternatively includes an opening or a cap. The cap may be frangible. Preferably, the foot includes a cylindrical wall that extends within the inertial transducer and the foot's lower surface is coplaner with the lower surface of a housing of the transducer, thereby reducing stack height. The cylindrical wall may or may not be threaded and may accept a shaft from a receiving apparatus used to associate the transducer with a substrate.
    Type: Application
    Filed: June 7, 2011
    Publication date: April 4, 2013
    Inventors: Robert Katz, Timothy Gladwin
  • Patent number: 8243963
    Abstract: An audio transducer assembly configured for positioning with respect to a mounting surface, said assembly employing a tweeter in a directionally adjustable body which swivels radially and axially for positioning and directing the tweeter in a desired direction. By keeping the center of rotation at or near the center of the surface of the tweeter, the adjustment of the tweeter does not significantly offset its body in the X or Y direction through its range of motion. Such configuration allows for compensation of the distortion caused by placing the tweeter in the middle of a woofer in a speaker having multiple transducers in a single assembly.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: August 14, 2012
    Inventors: Timothy A. Gladwin, Christopher I. Carlisle, Shawn Luimes, Robert G. Johnston
  • Publication number: 20120014544
    Abstract: A forward focused bipolar loudspeaker system includes a front-facing driver array and a rear facing driver array with substantially identical front-facing and rear-facing midrange or mid-bass drivers voiced and driven so that the measured SPL curves of each of the arrays, when measured individually, are tonally balanced. The front array and rear array have substantially identical on-axis and off axis frequency response and the rear array's output power (SPL) is reduced by, preferably, about 6 dB with respect to the output power produced by the front-facing array, while retaining a flat tonal balance for both the front and rear speakers, to produce a sound power ratio of about 2:1 as measured by comparing the front and back SPL levels of the speakers. This bipolar speaker system and method for voicing was discovered to provide greater clarity and improved localization while retaining the spacious envelopment of the bipolar sound field.
    Type: Application
    Filed: June 16, 2011
    Publication date: January 19, 2012
    Inventors: Timothy GLADWIN, Jason B. Cochrane
  • Patent number: 8014545
    Abstract: A loudspeaker system includes an enclosure having an open end defining a plane, a baffle, a loudspeaker operating in the 4 kHz to 10 kHz range, and a device, preferably a ribbed portion having a plurality of grooves, coupled to the baffle for modifying the spectral profile of the projected sound waves. The baffle includes first and second angled surfaces each oriented at an oblique angle with respect to the plane. The speaker is coupled to the first angled surface and the ribbed portion is coupled to the baffle along the intersection of the first angled surface and the second angled surface. When mounted in a wall or ceiling, the system projects a sound field substantially indistinguishable from that of a loudspeaker located within the listener's listening plane. The baffle can also have acoustic damping material attached thereto, with grooves formed therein, to prevent reflections of 4 kHz to 10 kHz sound.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: September 6, 2011
    Assignee: DEI Headquarters, Inc.
    Inventors: Matthew Grant, Timothy A. Gladwin, Robert G. Johnston
  • Publication number: 20110164774
    Abstract: A high fidelity, low-profile loudspeaker assembly includes an enclosure having a rear panel which is highly thermally conductive. At least one speaker driver is mounted in the enclosure, the driver including a forwardly facing diaphragm driven by a voice coil former carrying a voice coil, and a rearwardly extending motor structure. An aperture is provided in the rear panel to receiving the driver's motor structure, and a thermally conductive gasket seals the rear panel aperture around cup to provide a thermal path from the driver motor to the rear panel for cooling the driver. On one driver embodiment, a generally dome-shaped annular spider surrounds and supports the voice coil former, the spider being connected at its inner periphery to the approximate vertical midpoint of the voice coil former.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 7, 2011
    Inventor: Timothy A. GLADWIN
  • Publication number: 20100322457
    Abstract: An audio transducer assembly configured for positioning with respect to a mounting surface, said assembly employing a tweeter in a directionally adjustable body which swivels radially and axially for positioning and directing the tweeter in a desired direction. By keeping the center of rotation at or near the center of the surface of the tweeter, the adjustment of the tweeter does not significantly offset its body in the X or Y direction through its range of motion. Such configuration allows for compensation of the distortion caused by placing the tweeter in the middle of a woofer in a speaker having multiple transducers in a single assembly.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Inventors: Timothy A. Gladwin, Christopher I. Carlisle, Shawn Luimes, Robert G. Johnston
  • Patent number: D823281
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: July 17, 2018
    Assignee: Harman International Industries, Incorporated
    Inventors: Jim Garrett, Chris N. Hagen, Fred Tubis, Timothy Gladwin