Patents by Inventor Leopold Appel

Leopold 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).

  • Noise generator
    Patent number: 8159280
    Abstract: A noise generator for generating band-limited noise from a plurality of sinusoidal signals at the same level and equidistant frequency position in the noise spectrum is provided. A noise signal has a low crest factor and for this purpose the phase position of each individual sinusoidal signal is determined.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: April 17, 2012
    Assignee: Siemens AG Oesterreich
    Inventors: Leopold Appel, Hermann Danzer, Andreas Hofmann
  • Noise Generator
    Publication number: 20100176867
    Abstract: A noise generator for generating band-limited noise from a plurality of sinusoidal signals at the same level and equidistant frequency position in the noise spectrum is provided. A noise signal has a low crest factor and for this purpose the phase position of each individual sinusoidal signal is determined.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 15, 2010
    Inventors: Leopold Appel, Hermann Danzer, Andreas Hofmann