Patents by Inventor Narendra Persaud

Narendra Persaud 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).

  • Attachable external acoustic chambers for a mobile device
    Patent number: 8577069
    Abstract: A wireless mobile electronic device includes a first housing and a first acoustic chamber disposed within the first housing. A sound generator, within said first housing, is acoustically coupled to the first acoustic chamber. Additionally, a first acoustic port defines an opening into the first acoustic chamber. The acoustic port includes a first mating structure configured for mating with a second mating structure of a second acoustic chamber, exclusive of said first housing.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: November 5, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Patrick A. Hampton, Narendra Persaud
  • ATTACHABLE EXTERNAL ACOUSTIC CHAMBERS FOR A MOBILE DEVICE
    Publication number: 20120099751
    Abstract: A wireless mobile electronic device includes a first housing and a first acoustic chamber disposed within the first housing. A sound generator, within said first housing, is acoustically coupled to the first acoustic chamber. Additionally, a first acoustic port defines an opening into the first acoustic chamber. The acoustic port includes a first mating structure configured for mating with a second mating structure of a second acoustic chamber, exclusive of said first housing.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 26, 2012
    Applicant: MOTOROLA MOBILITY, INC.
    Inventors: Patrick A. Hampton, Narendra Persaud
  • Attachable external acoustic chamber for a mobile device
    Patent number: 8098867
    Abstract: An external acoustic chamber (220) for attachment to a mobile device (200) is provided. The external acoustic chamber (220) optimizes the audio performance of the mobile device (200) thus reducing the need for signal equalization and/or hardware to amplify the sound signal. The mobile device (200) includes a loudspeaker (205) and a first acoustic chamber (207) acoustically coupled to the loudspeaker (205). The external acoustic chamber (220) comprises at feast a second acoustic chamber (222) which penetrates the first acoustic chamber (207) adding volume to the first acoustic chamber (207). The combined greater volume reduces the dampening of loudspeaker (205) caused by the pressure in the first acoustic chamber (207). The result is an improvement in the frequency response of loudspeaker (205) approaching the natural frequency response of loudspeaker (205).
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: January 17, 2012
    Assignee: Motorola Mobility, Inc.
    Inventors: Patrick A. Hampton, Narendra Persaud
  • Attachable external acoustic chamber for a mobile device
    Publication number: 20080130931
    Abstract: An external acoustic chamber (220) for attachment to a mobile device (200) is provided. The external acoustic chamber (220) optimizes the audio performance of the mobile device (200) thus reducing the need for signal equalization and/or hardware to amplify the sound signal. The mobile device (200) includes a loudspeaker (205) and a first acoustic chamber (207) acoustically coupled to the loudspeaker (205). The external acoustic chamber (220) comprises at feast a second acoustic chamber (222) which penetrates the first acoustic chamber (207) adding volume to the first acoustic chamber (207). The combined greater volume reduces the dampening of loudspeaker (205) caused by the pressure in the first acoustic chamber (207). The result is an improvement in the frequency response of loudspeaker (205) approaching the natural frequency response of loudspeaker (205).
    Type: Application
    Filed: February 15, 2007
    Publication date: June 5, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Patrick A. Hampton, Narendra Persaud