Patents by Inventor Gary Duane Lemke

Gary Duane Lemke 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).

  • GNSS satellite spoofing detection using multi-independent inertial mixing
    Patent number: 11585941
    Abstract: Techniques for detecting GNSS spoofing using inertial mixing data are disclosed. One or more navigation parameters are determined by at least one GNSS receiver and a plurality of IRS from at least two periods of time. The navigation parameters from the GNSS receiver(s) and the IRS are compared at each time period, and the difference(s) between the compared navigation parameters are further compared to generate at least one differential value. A system can detect GNSS spoofing by comparing the at least one differential value to a suitable threshold. In one aspect each IRS navigation parameter is compared with a corresponding GNSS navigation parameter, wherein the plurality of differential values is mixed before threshold comparison. In another aspect, each IRS navigation parameter is mixed before comparison with a GNSS navigation parameter, and the resulting differential value is then compared against a threshold.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: February 21, 2023
    Assignee: Honeywell International Inc.
    Inventors: Gary Duane Lemke, Karl Abraham Keyzer, Mark A. Ahlbrecht, James Arthur McDonald
  • GNSS SATELLITE SPOOFING DETECTION USING MULTI-INDEPENDENT INERTIAL MIXING
    Publication number: 20220082704
    Abstract: Techniques for detecting GNSS spoofing using inertial mixing data are disclosed. One or more navigation parameters are determined by at least one GNSS receiver and a plurality of IRS from at least two periods of time. The navigation parameters from the GNSS receiver(s) and the IRS are compared at each time period, and the difference(s) between the compared navigation parameters are further compared to generate at least one differential value. A system can detect GNSS spoofing by comparing the at least one differential value to a suitable threshold. In one aspect each IRS navigation parameter is compared with a corresponding GNSS navigation parameter, wherein the plurality of differential values is mixed before threshold comparison. In another aspect, each IRS navigation parameter is mixed before comparison with a GNSS navigation parameter, and the resulting differential value is then compared against a threshold.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 17, 2022
    Applicant: Honeywell International Inc.
    Inventors: Gary Duane Lemke, Karl Abraham Keyzer, Mark A. Ahlbrecht, James Arthur McDonald