Patents by Inventor Andreas Conzelmann

Andreas Conzelmann 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).

  • Patent number: 6690468
    Abstract: An optical spectrum analyzer of novel design, in which several different spectra can be measured and analyzed simultaneously. A measuring signal is used as a reference signal for calibrating the optical spectrum analyzer. The light rays are admitted via a coupling device with several coupling apertures arranged in a line; and via a separate decoupling device comprising respective decoupling apertures arranged in a line, the light rays are decoupled. Height offset is realized by a 90° deviation prism. The arrangement makes possible simultaneous analysis of several optical lines with little retroreflection as well as uninterrupted calibration of the measuring process.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: February 10, 2004
    Assignee: Wavetek Wandel Goltermann Eningen GmbH & Co.
    Inventors: Karl Benzel, Thomas Fuhrmann, Andreas Conzelmann, Eberhard Loecklin