Patents by Inventor Demetri James

Demetri James 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).

  • Automatic creation, maintenance and monitoring of a guideway database
    Patent number: 8260480
    Abstract: A method and system for creating, maintain, and monitoring a guideway database is disclosed.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 4, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Demetri James
  • Automatic Creation, Maintenance and Monitoring of a Guideway Database
    Publication number: 20090187296
    Abstract: A method and system for creating, maintain, and monitoring a guideway database is disclosed.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventor: Demetri James
  • System and Method for Train Awakening
    Publication number: 20090187294
    Abstract: A method and system for vitally determining initial vehicle location on a guideway when the vehicle is awakened is disclosed.
    Type: Application
    Filed: January 20, 2009
    Publication date: July 23, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventor: Demetri James
  • Method for the Onboard Determination of Train Detection, Train Integrity and Positive Train Separation
    Publication number: 20090177344
    Abstract: A system and method for onboard train detection is disclosed. In some embodiments, the train detection function is segregated into a safety-critical head-of-train determination, a safety-critical end-of-train (or length-of-train) determination, and a safety-critical train integrity function. By supplementing the train detection and integrity functions with information on system latencies, guard zones, processing delays and a determination of safe braking distance, the method and system provides safety-critical onboard positive train separation information. This information is transmitted to a control center and used to determine safe separation distance between trains.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 9, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Demetri James, Warren H. Klinck, JR.