Patents by Inventor Rudolf Dankwort

Rudolf Dankwort 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).

  • Demodulation reference signal source
    Patent number: 5148236
    Abstract: An information retrieval system for extracting information from a pair of substantially coherent electromagnetic waves represented by phase differences therebetween each of which is incident on a photodetector, and having a demodulator which receives the photodetector output signal and which also receives a reference signal. The reference signal is obtained through use of a phase shift detector which receives the photodetector signal to determine certain phase shifts occurring therein and provides this information to a reference signal supply to adjust the phase of its output signal which then serves as the reference signal for the demodulator.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: September 15, 1992
    Assignee: Honeywell Inc.
    Inventors: James Blake, Preston Dane, Rudolf Dankwort