Patents by Inventor Ronald Appel

Ronald Appel 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 with internal damping
    Patent number: 7415121
    Abstract: Method and apparatus are disclosed for damping the resonance frequency in a microphone. The method and apparatus of the invention involve providing an elastomeric frame to support the backplate. The elastomeric frame forms a substantially air tight seal around the backplate. A hole is formed in the backplate and a cover having an opening therein is placed over the hole in the backplate. The frequency response of the microphone may then be controlled by precisely controlling the size, shape, and/or location of the opening in the cover overlaying the hole. The cover may also serve as an electrical contact to other components in the microphone.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: August 19, 2008
    Assignee: Sonion Nederland B.V.
    Inventors: Raymond Mögelin, Eddy Dubbeldeman, Ronald Appel
  • Microphone with internal damping
    Publication number: 20060093167
    Abstract: Method and apparatus are disclosed for damping the resonance frequency in a microphone. The method and apparatus of the invention involve providing an elastomeric frame to support the backplate. The elastomeric frame forms a substantially air tight seal around the backplate. A hole is formed in the backplate and a cover having an opening therein is placed over the hole in the backplate. The frequency response of the microphone may then be controlled by precisely controlling the size, shape, and/or location of the opening in the cover overlaying the hole. The cover may also serve as an electrical contact to other components in the microphone.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventors: Raymond Mogelin, Eddy Dubbeldeman, Ronald Appel