Patents by Inventor David Brandwood

David Brandwood 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).

  • Apparatus for multilateration and method
    Publication number: 20080042902
    Abstract: To cater for the positioning of an aircraft in a boundary zone between two adjacent multilateration systems, the controller (14) in one system receives Time Difference of Arrival data provided by the controller (15) in the second system. The controller (15) derives the TDoA data from time of arrival data provided by its receiver stations (9-13). By furnishing TDoA data the timings of the two systems do not need to be synchronised. The controller (14) uses the TDoA data and also time of arrival data from its local receiver stations (4-8) to perform a multilateration to determine the location of the aircraft (16).
    Type: Application
    Filed: May 23, 2007
    Publication date: February 21, 2008
    Applicant: Roke Manor Research Limited
    Inventors: David Brandwood, Timothy Quilter