Patents by Inventor Johann Kaderavek

Johann Kaderavek 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).

  • Microphone system having pressure-gradient capsules
    Patent number: 8036412
    Abstract: A microphone system may include a housing having a housing opening. Pressure-gradient capsules may be provided in the housing. The capsules may include a diaphragm and at least one sound entry opening. One sound entry opening may be connected with a front side of the diaphragm in an acoustically conductive manner and another sound entry opening may be connected with a rear side of the diaphragm in an acoustically conductive manner. The sound entry openings may be located in each of the pressure-gradient capsule on an entry surface. The diaphragms of the pressure-gradient capsules may be oriented substantially parallel to each other. The sound entry opening may be directed into a space, which may be closed in a direction perpendicular to the entry surface. The space may be connected to the housing opening in an acoustically conductive manner. The microphone system may be compact and robust, and it may be suitable for use with hands-free devices.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 11, 2011
    Inventors: Johann Kaderavek, Klaus Alois Haindl
  • Headphones with elastic earpiece interface
    Publication number: 20070092098
    Abstract: An improved headphone design delivers an improved listening experience. The headphones provide comfortable and uniform earpiece pressure against the listener's ear. The headphones help eliminate environmental noise and reduce audible interference, masking, and other undesirable intrusions into the listening experience.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 26, 2007
    Inventor: Johann Kaderavek
  • Microphone system having pressure-gradient capsules
    Publication number: 20060083390
    Abstract: A microphone system may include a housing having a housing opening. Pressure-gradient capsules may be provided in the housing. The capsules may include a diaphragm and at least one sound entry opening. One sound entry opening may be connected with a front side of the diaphragm in an acoustically conductive manner and another sound entry opening may be connected with a rear side of the diaphragm in an acoustically conductive manner. The sound entry openings may be located in each of the pressure-gradient capsule on an entry surface. The diaphragms of the pressure-gradient capsules may be oriented substantially parallel to each other. The sound entry opening may be directed into a space, which may be closed in a direction perpendicular to the entry surface. The space may be connected to the housing opening in an acoustically conductive manner. The microphone system may be compact and robust, and it may be suitable for use with hands-free devices.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 20, 2006
    Inventors: Johann Kaderavek, Klaus Haindl