Patents by Inventor Roger E. Friedman

Roger E. Friedman 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).

  • Portable ground based augmentation system
    Patent number: 9746562
    Abstract: A method and apparatus of generating navigation information for an aircraft. Satellite signals are received at a group of reference receivers at a group of locations. A level of accuracy is identified for the group of reference receivers based on satellite data formed from the satellite signals. It is indicated when the group of locations of the group of reference receivers does not meet a desired level of accuracy. Messages are generated using the navigation information from the satellite data when the group of reference receivers has the desired level of accuracy.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 29, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Roger E. Friedman, Janet Suzanne Booth
  • Portable Ground Based Augmentation System
    Publication number: 20150378028
    Abstract: A method and apparatus of generating navigation information for an aircraft. Satellite signals are received at a group of reference receivers at a group of locations. A level of accuracy is identified for the group of reference receivers based on satellite data formed from the satellite signals. It is indicated when the group of locations of the group of reference receivers does not meet a desired level of accuracy. Messages are generated using the navigation information from the satellite data when the group of reference receivers has the desired level of accuracy.
    Type: Application
    Filed: June 30, 2014
    Publication date: December 31, 2015
    Inventors: Roger E. Friedman, Janet Suzanne Booth