Patents by Inventor Susanna P. Gordon

Susanna P. Gordon 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).

  • Method of managing interference during delay recovery on a train system
    Patent number: 6980894
    Abstract: The present invention provides methods for preventing low train voltages and managing interference, thereby improving the efficiency, reliability, and passenger comfort associated with commuter trains. An algorithm implementing neural network technology is used to predict low voltages before they occur. Once voltages are predicted, then multiple trains can be controlled to prevent low voltage events. Further, algorithms for managing inference are presented in the present invention. Different types of interference problems are addressed in the present invention such as “Interference During Acceleration”, “Interference Near Station Stops”, and “Interference During Delay Recovery.” Managing such interference avoids unnecessary brake/acceleration cycles during acceleration, immediately before station stops, and after substantial delays. Algorithms are demonstrated to avoid oscillatory brake/acceleration cycles due to interference and to smooth the trajectories of closely following trains.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 27, 2005
    Assignee: San Francisco Bay Area Rapid Transit
    Inventors: Susanna P. Gordon, John A. Evans
  • Voltage control on a train system
    Patent number: 6681161
    Abstract: The present invention provides methods for preventing low train voltages and managing interference, thereby improving the efficiency, reliability, and passenger comfort associated with commuter trains. An algorithm implementing neural network technology is used to predict low voltages before they occur. Once voltages are predicted, then multiple trains can be controlled to prevent low voltage events. Further, algorithms for managing inference are presented in the present invention. Different types of interference problems are addressed in the present invention such as “Interference During Acceleration”, “Interference Near Station Stops”, and “Interference During Delay Recovery.” Managing such interference avoids unnecessary brake/acceleration cycles during acceleration, immediately before station stops, and after substantial delays.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 20, 2004
    Assignee: San Francisco Bay Area Rapid Transit
    Inventors: Susanna P. Gordon, John A. Evans
  • Efficient high density train operations
    Patent number: 6332107
    Abstract: The present invention provides methods for preventing low train voltages and managing interference, thereby improving the efficiency, reliability, and passenger comfort associated with commuter trains. An algorithm implementing neural network technology is used to predict low voltages before they occur. Once voltages are predicted, then multiple trains can be controlled to prevent low voltage events. Further, algorithms for managing inference are presented in the present invention. Different types of interference problems are addressed in the present invention such as “Interference. During Acceleration”, “Interference Near Station Stops”, and “Interference During Delay Recovery.” Managing such interference avoids unnecessary brake/acceleration cycles during acceleration, immediately before station stops, and after substantial delays.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: December 18, 2001
    Assignee: San Francisco Bay Area Rapid Transit District
    Inventors: Susanna P. Gordon, John A. Evans