Patents by Inventor Oscar Kårekull

Oscar Kårekull 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).

  • Publication number: 20230225905
    Abstract: A hearing protection device is presented. The hearing protection device includes a first and second earmuffs (202, 260, 310) connected by a connector (270, 320). The first and second earmuffs are configured to provide level dependent hearing protection. The first earmuff includes a microphone element (204, 330) having a microphone entry (264), positioned on an exterior of a housing of the first earmuff (260), the microphone element (204, 330) being configured to receive an ambient sound. The first earmuff also includes a processor configured to process the ambient sound using a level dependent function. The first earmuff also includes a speaker configured to broadcast the processed ambient sound in an interior of the first earmuff. The first earmuff also includes an asymmetrical windscreen (262) configured to enclose the microphone element. The windscreen is coupled to the housing of the first earmuff.
    Type: Application
    Filed: June 4, 2021
    Publication date: July 20, 2023
    Inventor: Oscar Kårekull
  • Publication number: 20100128903
    Abstract: A method for limiting the sound volume in an earphone, a headset (8), or the like, to a maximum permitted level, entails that an input signal (2) is sensed by a processor (4) and damped by a damper (6) if it is excessively high. Thereafter, the signal (7) is transmitted to the earphone, the headset (8), or the like. The processor (4) switches between an active mode and a rest mode. An apparatus for limiting the sound volume according to the method includes a microprocessor (4) and a damper (6).
    Type: Application
    Filed: April 10, 2008
    Publication date: May 27, 2010
    Applicant: 3 M SVENSKA AB
    Inventors: Roger Kihlberg, Oscar Kårekull