Patents by Inventor Horst Mayr-Stein

Horst Mayr-Stein 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).

  • Circuit arrangement for telecommunications especially telephone installations that switch through digitally by time division
    Patent number: 4281410
    Abstract: A circuit arrangement for telecommunications, in particular telephone exchange installations that switch through digitally by time division, having a special coupling network for switching audio-signals to terminal units which, besides the connection network provided for the interchange of speech and data information, sets up the connection between terminal units and audio-signal senders and works digitally.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: July 28, 1981
    Inventors: Manfred Agricola, Klaus Dietze, Horst Mayr-Stein, Karl-Heinz Reimer, Andreas Reinhold, Adolf Schmid, Johannes-Georg Schosnig