Patents by Inventor Ansgar Dirkmann

Ansgar Dirkmann 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).

  • Optical transmission system
    Patent number: 8811818
    Abstract: An optical transmission system comprises a metropolitan core network operated in a wavelength division multiplexing mode and connected via metro connection devices to access connections to optical network terminals connected by means of a passive optical splitter. The metro connection devices contain regenerators and wavelength converters, so that data regeneration takes place between the network terminals and the central management and switching unit. This makes it possible to cover distances around 100 km.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 19, 2014
    Assignee: Adtran GmbH
    Inventors: Stephan Beer, Ansgar Dirkmann, Thomas Nagel
  • Optical Transmission System
    Publication number: 20090052893
    Abstract: An optical transmission system comprises a metropolitan core network operated in a wavelength division multiplexing mode and connected via metro connection devices to access connections to optical network terminals connected by means of a passive optical splitter. The metro connection devices contain regenerators and wavelength converters, so that data regeneration takes place between the network terminals and the central management and switching unit. This makes it possible to cover distances around 100 km.
    Type: Application
    Filed: March 6, 2006
    Publication date: February 26, 2009
    Applicant: Siemens Networks GmbH & Co KG
    Inventors: Stephan Beer, Ansgar Dirkmann, Thomas Nagel
  • Method of handling service connections in a communication network
    Patent number: 6922399
    Abstract: A method for controlling connections in a communication network including setting up a signaling connection between a subscriber of the communication network and a service access system based on a service connection request by the subscriber; and setting up a payload connection associated with the signaling connection only between the service access system and the subscriber given data traffic for the service and clearing down the payload connection after the data transmission.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: July 26, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ansgar Dirkmann, Thomas Werner, Jan Hamann