Patents by Inventor Klaus Grubner

Klaus Grubner 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: 4081690
    Abstract: An automatic stereo plotter comprises a correlator and a follow-up unit, which is preferably employed to follow-up a measuring mark in z-direction relative to a stereo model to be evaluated. In order to improve the efficiency of the stereo plotter additional means are provided which increase the amplification factor between the parallax error signals at the output of the image correlator and the follow-up signals. Thus variations in the video signals derived from the measuring photographs are compensated for. Such means are, for example, an adjustable amplifier, which can be set to a plurality of stable amplification factors, and an analog multiplier which, due to a corresponding control voltage, permits a continuous variation of the amplification.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: March 28, 1978
    Assignee: Jenoptik Jena G.m.b.H.
    Inventors: Klaus Grubner, Werner Kunze, Werner Marckwardt