Patents by Inventor Robert J. Sims

Robert J. Sims 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).

  • Methods and apparatus for mitigating rain fading over SATCOM links via information throughput adaptation
    Patent number: 7174179
    Abstract: A remote communications terminal accesses a terrestrial network or information source via a SATCOM link with an earth station hub linked to the network or information source. Information throughput adaptation (ITA) is employed on the SATCOM link to maximize information throughput over the SATCOM link while ensuring acceptable signal quality under varying rain fading conditions. Sufficient power margin is built into the SATCOM link such that, under severe rain fading conditions, the lowest system throughput rate still provides acceptable signal quality. Under lesser rain fading conditions, the data throughput rate is increased via more bandwidth efficient modulation and coding schemes permitted by the higher signal quality which results from greater power margin. The earth station hub and remote terminals monitor the signal quality and communicate to adaptively adjust the modulation and coding used on the forward and return links to maximize information throughput under varying rain fading conditions.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: February 6, 2007
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Lawrence W. Krebs, Robert J. Sims, Ronald C. Bruno, Christopher Jason Berger, Ronald H. Pawlikowski, Jr.
  • Methods and apparatus for mitigating rain fading over satcom links via information throughput adaptation
    Publication number: 20030054816
    Abstract: A remote communications terminal accesses a terrestrial network or information source via a SATCOM link with an earth station hub linked to the network or information source. Information throughput adaptation (ITA) is employed on the SATCOM link to maximize information throughput over the SATCOM link while ensuring acceptable signal quality under varying rain fading conditions. Sufficient power margin is built into the SATCOM link such that, under severe rain fading conditions, the lowest system throughput rate still provides acceptable signal quality. Under lesser rain fading conditions, the data throughput rate is increased via more bandwidth efficient modulation and coding schemes permitted by the higher signal quality which results from greater power margin. The earth station hub and remote terminals monitor the signal quality and communicate to adaptively adjust the modulation and coding used on the forward and return links to maximize information throughput under varying rain fading conditions.
    Type: Application
    Filed: August 8, 2002
    Publication date: March 20, 2003
    Inventors: Lawrence W. Krebs, Robert J. Sims, Ronald C. Bruno, Christopher Jason Berger