Patents by Inventor Dann Hayes

Dann Hayes 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).

  • Direct field acoustic testing in a semi-reverberant enclosure
    Patent number: 10317373
    Abstract: An acoustic testing system includes at least four control microphones, at least four acoustic transducers, an acoustic enclosure with pre-determined reverberant characteristics which contains the at least four control microphones and the at least four acoustic transducers, a control system configured to produce a predetermined acoustic field as measured by the at least one control microphone. A unit under test is also disposed within the acoustic enclosure. Using an acoustic enclosure with pre-determined reverberant characteristics results of the increased proportion of reflected sounds in the area proximate to the unit under test such that less power is required to achieve a given acoustic test level than in a purely direct field acoustic test.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: June 11, 2019
    Assignee: MSI DFAT LLC
    Inventors: Paul Larkin, Matthew Polk, Dann Hayes
  • Standing wave reduction in direct field acoustic testing
    Patent number: 10014959
    Abstract: A direct field acoustic testing system includes at least two acoustical transducer groups and a signal modifier for introducing separately controllable time delays or phase shifts for each acoustical transducer group so as to provide an acoustic field conforming to a pre-determined specification with reduced deviations due to constructive or destructive interference between the acoustical transducer groups.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 3, 2018
    Assignee: MSI DFAT LLC
    Inventors: Paul Larkin, Matthew Polk, Dann Hayes, Michael Sullivan, Arthur Isaacs
  • DIRECT FIELD ACOUSTIC TESTING IN A SEMI-REVERBERANT ENCLOSURE
    Publication number: 20150253292
    Abstract: An acoustic testing system includes at least four control microphones, at least four acoustic transducers, an acoustic enclosure with pre-determined reverberant characteristics which contains the at least four control microphones and the at least four acoustic transducers, a control system configured to produce a predetermined acoustic field as measured by the at least one control microphone. A unit under test is also disposed within the acoustic enclosure. Using an acoustic enclosure with pre-determined reverberant characteristics results of the increased proportion of reflected sounds in the area proximate to the unit under test such that less power is required to achieve a given acoustic test level than in a purely direct field acoustic test.
    Type: Application
    Filed: October 15, 2013
    Publication date: September 10, 2015
    Inventors: Paul Larkin, Matthew Polk, Dann Hayes
  • STANDING WAVE REDUCTION IN DIRECT FIELD ACOUSTIC TESTING
    Publication number: 20150138916
    Abstract: A direct field acoustic testing system includes at least two acoustical transducer groups and a signal modifier for introducing separately controllable time delays or phase shifts for each acoustical transducer group so as to provide an acoustic field conforming to a pre-determined specification with reduced deviations due to constructive or destructive interference between the acoustical transducer groups.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 21, 2015
    Inventors: Paul Larkin, Matthew Polk, Dann Hayes, Michael Sullivan, Arthur Isaacs