Patents by Inventor Axel Kiessling

Axel Kiessling 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).

  • Communication system for detecting an unauthorized intruder terminal unit
    Patent number: 5926529
    Abstract: The invention relates to a communication system comprising a station (2) for charge metering of a connection point. This station comprises a monitoring circuit (7) for detecting a request for a connection set-up from the connection point (3), either for establishing the absence of a message after a given period of time, or for evaluating the contents of a message that has arrived from the connection point (3) after the request for a connection set-up has arrived, and for rejecting the request for a connection set-up if invalid parameters of the connection point (3) are established.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: July 20, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Wilfried Hache, Jost Kawczyk, Michael Andreas, Axel Kiessling