Patents by Inventor Karl R. Nelleben

Karl R. Nelleben 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 comprising a distributed database system
    Patent number: 5721905
    Abstract: A communication system having a plurality of service control points which can be mutually coupled and are assigned to at least one service switching point for executing services, a database system, and a service management system for managing the services. To enhance the availability of the database system, this database system comprises distributed databases which have each a database control point. At least several databases are provided for storing copies of logically coherent partitions of the total database. To execute a database operation, a copy of a partition and the database control point that manages that partition are located by reading a Table.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: February 24, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Martin Elixmann, Rainer Gallersdorfer, Karin Klabunde, Karl R. Nelleben