Patents by Inventor Oliver Michael James Hewitt

Oliver Michael James Hewitt 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).

  • In-ear device incorporating active noise reduction
    Patent number: 9654854
    Abstract: An in-ear device incorporating active noise reduction has a housing adapted for location in or adjacent to an auditory canal. The housing contains a driver and an acoustic path is provided from the driver to an outlet of the device. A microphone and an acoustic impedance are provided in the acoustic path. The impedance increases the stability of the device.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: May 16, 2017
    Inventors: Paul Darlington, Yacine Azmi, Mickael Bernard Andre Lefebvre, Oliver Michael James Hewitt
  • IN-EAR DEVICE INCORPORATING ACTIVE NOISE REDUCTION
    Publication number: 20130058493
    Abstract: An in-ear device incorporating active noise reduction has a housing adapted for location in or adjacent to an auditory canal. The housing contains a driver and an acoustic path is provided from the driver to an outlet of the device. A microphone and an acoustic impedance are provided in the acoustic path. The impedance increases the stability of the device.
    Type: Application
    Filed: June 1, 2012
    Publication date: March 7, 2013
    Applicant: Phitek Systems Limited
    Inventors: Paul Darlington, Yacine Azmi, Mickael Bernard Andre Lefebvre, Oliver Michael James Hewitt