Patents by Inventor Rolf Kotthaus

Rolf Kotthaus 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).

  • Publication number: 20020067715
    Abstract: A method for transmitting to an end subscriber, via an IP (=Internet protocol) network (4), signalling information by means of which the end subscriber is informed that a call is being received, via the IP network (4), which is directed to an IP terminal (5) of the end subscriber, connected to the IP network (4), and which, in particular, is intended to transmit video and/or audio signals, for example, human speech signals, is characterized in that the call signalling is effected independently of the Internet protocol, via a special logical transmission channel on a parallel, or the same, physical connection line via which the call is relayed to the IP terminal. A VolP call can thereby be accepted in a simple manner, irrespective of whether or not the IP terminal is switched on or logged-on.
    Type: Application
    Filed: November 16, 2001
    Publication date: June 6, 2002
    Applicant: ALCATEL
    Inventors: Rolf Kotthaus, Hans Jurgen Matt
  • Patent number: 6269156
    Abstract: A method for setting up fee-optimized communications connections by a communications device (EX1), a server for setting up fee-optimized communications connections and a communications node (EX1) therefor. The communications device provides a database, which stores the fees accruing during the use of the communications paths (CON2A, CON2B) that can be used for setting up a communications connection. A first subscriber (SUB1) then logs on a call request to a second subscriber (SUB2) at the communications device. The communications device then determines a communications path (CON2A) between the first and second subscriber according to the overall lowest fees and sets up a communications connection between the first and second subscriber on said communications path. For this purpose, it is proposed that the communications device determines the fees accrued by said communications connection and charges them to a subscriber.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: July 31, 2001
    Assignee: Alcatel
    Inventors: Hans Jürgen Matt, Peter Sauer, Rolf Kotthaus