Patents by Inventor Mark William O'CALLAGHAN

Mark William O'CALLAGHAN 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).

  • Earphone
    Patent number: 10911858
    Abstract: An earphone comprises an acoustic waveguide (305), for coupling sound waves from an acoustic transducer into an ear (5), the waveguide having an outer end (315) and an inner end (320), at least the inner end being open. The acoustic transducer (310) is arranged at the outer end (315) of the acoustic waveguide and the inner end (320) of the acoustic waveguide is configured to be located in the ear (5). The acoustic waveguide (305) has a neck (340) between the outer end (315) and the inner end (320), and has a cross section at the neck that is smaller than a cross section at each of the outer end and the inner end.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: February 2, 2021
    Inventor: Mark William O'Callaghan
  • Earphone
    Patent number: 10869116
    Abstract: An earphone comprises an acoustic waveguide (305), for coupling sound waves from an acoustic transducer into an ear (5), the waveguide having an outer end (315) and an inner end (320), at least the inner end being open. The acoustic transducer (310) is arranged at the outer end (315) of the acoustic waveguide and the inner end (320) of the acoustic waveguide is configured to be located in the ear (5). The acoustic waveguide (305) has a neck (340) between the outer end (315) and the inner end (320), and has a cross section at the neck that is smaller than a cross section at each of the outer end and the inner end.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 15, 2020
    Inventor: Mark William O'Callaghan
  • EARPHONE
    Publication number: 20190253783
    Abstract: An earphone comprises an acoustic waveguide (305), for coupling sound waves from an acoustic transducer into an ear (5), the waveguide having an outer end (315) and an inner end (320), at least the inner end being open. The acoustic transducer (310) is arranged at the outer end (315) of the acoustic waveguide and the inner end (320) of the acoustic waveguide is configured to be located in the ear (5). The acoustic waveguide (305) has a neck (340) between the outer end (315) and the inner end (320), and has a cross section at the neck that is smaller than a cross section at each of the outer end and the inner end.
    Type: Application
    Filed: September 14, 2016
    Publication date: August 15, 2019
    Inventor: Mark William O'CALLAGHAN