Patents by Inventor Gerd Rohrbach

Gerd Rohrbach 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).

  • Data transmission systems for full duplex communication
    Patent number: 4514840
    Abstract: Disclosed is a full duplex communication system connecting by a two wire link a main station and a local station. Both the main station and the local station has a clock pulse generator. The local clock pulse generator is switchable between a pulse rate which corresponds to that of the main clock and another pulse rate which defers about a fixed value. A comparator compares the phase of the incoming signal with the local clock signal and switches the local clock generator when its output is out of phase with the received signals.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: April 30, 1985
    Assignee: Te Ka De Felten & Guilleaume Fernmeldeanlagen GmbH
    Inventors: Edgar Bader, Gerd Rohrbach, Jurgen Petersen, Ludwig Kittel