Patents by Inventor Rudolf Knauer

Rudolf Knauer 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: 4222880
    Abstract: An arrangement or device for optical transmission of communications including a light transmitter with an associated receiver characterized by the receiver having a light collecting body having an index of refraction greater than 1 and containing fluorescent materials which absorb the band of light emitted by the transmitter and create a band of light which is not absorbed by the substance and is detected by the receiver. If more than one transmitter is utilized, they are arranged to transmit in different frequency bands and each transmitter has an associated fluorescent substance which will absorb the discrete separate frequency but not the other frequency bands and emit a fluorescent signal which is only detected by the respective receiver for that transmitter. These fluorescent substances can be in separate light collecting bodies or as a mixture in a single body which has more than one receiver attached thereto.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: September 16, 1980
    Assignee: Siemens Aktiengesellschaft
    Inventors: Guenter Baur, Waldemar Greubel, Rudolf Knauer, Hans Krueger