Patents by Inventor Walter Ossler

Walter Ossler 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).

  • Subscriber connection circuit comprising feed resistors which can be bridged in low-ohmic fashion and an indication circuit which effects different indications
    Patent number: 4562308
    Abstract: A subscriber connection circuit comprises heat resistors which can be bridged in a low-ohmic manner and an indication circuit which effects different indication functions. Four different operating states are possible, characterized by the nature of the feed, the switching threshold for the indication circuit, and the actuation of a filter element for the indication circuit, two of which operating modes represent the ringing phase and the ringing interval. During the ringing interval, the nature of the feed and the threshold voltage are identical to those in the conversation operating state, but in contrast thereto the filter element is actuated.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: December 31, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Horst Kopetzky, Werner Nagler, Walter Ossler