Patents by Inventor Harald ZOTTMAN

Harald ZOTTMAN 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).

  • Colorless, directionless, and gridless optical network, node, and method
    Patent number: 8554074
    Abstract: An optical node includes an optical routing apparatus including N ports, N is an integer greater than 2, the optical routing apparatus configured to direct light that is input to each of the N ports to all of the other N ports, and a configurable optical blocking element located in line with at least one of the N ports. A method includes broadcasting a plurality of optical signals over a plurality of ports using a broadcast element, selectively receiving a desired signal from all of the plurality of optical signals at one of the plurality of ports, and blocking the plurality of signals via a blocking element in line with one of the plurality of ports thereby preventing a multiple path of the broadcast plurality of optical signals.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: October 8, 2013
    Assignee: Ciena Corporation
    Inventors: David Weldon Boertjes, Harald Zottman
  • COLORLESS, DIRECTIONLESS, AND GRIDLESS OPTICAL NETWORK, NODE, AND METHOD
    Publication number: 20120183294
    Abstract: An optical node includes an optical routing apparatus including N ports, N is an integer greater than 2, the optical routing apparatus configured to direct light that is input to each of the N ports to all of the other N ports, and a configurable optical blocking element located in line with at least one of the N ports. A method includes broadcasting a plurality of optical signals over a plurality of ports using a broadcast element, selectively receiving a desired signal from all of the plurality of optical signals at one of the plurality of ports, and blocking the plurality of signals via a blocking element in line with one of the plurality of ports thereby preventing a multiple path of the broadcast plurality of optical signals.
    Type: Application
    Filed: February 13, 2012
    Publication date: July 19, 2012
    Applicant: CIENA CORPORATION
    Inventors: David Weldon BOERTJES, Harald ZOTTMAN