Patents by Inventor Curtis J. Call

Curtis J. Call 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 systems for radar aided aircraft positioning for approaches and landings
    Patent number: 8160758
    Abstract: A method for radar aided positioning of an air vehicle for approach and landing is described. The method includes integrating global navigation satellite system (GNSS) data and inertial data to calculate a position of the air vehicle, scanning the environment forward of the air vehicle with a radar, and accessing a database of terrain features and their radar signatures. The method further includes matching features in the radar scan data to the radar signatures in the database to determine an actual position of the air vehicle and synthesizing glide slope and localizer signals for the approach and landing based on the determined actual position.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: April 17, 2012
    Assignee: Honeywell International Inc.
    Inventors: Curtis J. Call, David E. Hedin, David C. Vacanti
  • METHODS AND SYSTEMS FOR RADAR AIDED AIRCRAFT POSITIONING FOR APPROACHES AND LANDINGS
    Publication number: 20100256840
    Abstract: A method for radar aided positioning of an air vehicle for approach and landing is described. The method includes integrating global navigation satellite system (GNSS) data and inertial data to calculate a position of the air vehicle, scanning the environment forward of the air vehicle with a radar, and accessing a database of terrain features and their radar signatures. The method further includes matching features in the radar scan data to the radar signatures in the database to determine an actual position of the air vehicle and synthesizing glide slope and localizer signals for the approach and landing based on the determined actual position.
    Type: Application
    Filed: May 22, 2006
    Publication date: October 7, 2010
    Inventors: Curtis J. Call, David E. Hedin, David C. Vacanti
  • Methods and systems for measuring terrain height
    Patent number: 7145501
    Abstract: An altitude measuring system is described that includes a radar altimeter configured to measure altitude and a digital terrain map database. The database includes data relating to terrain elevation and at least one data parameter relating to an accuracy of the terrain elevation data and the altitude measured by the radar altimeter. The system is configured to weigh an altitude derived from the terrain elevation data and the radar altimeter measurements according to the at least one data parameter.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: December 5, 2006
    Assignee: Honeywell International Inc.
    Inventors: Mark T. Manfred, Curtis J. Call