Patents by Inventor Peter W. Ragsdale

Peter W. Ragsdale 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).

  • Dynamic Transitioning Between Intersection Controller Traffic Engines
    Publication number: 20120150421
    Abstract: A method of transitioning from one traffic engine to a second traffic engine on a single advanced traffic controller is provided. A user enters, or the controller is programmed to enter, a request to change from the first traffic engine to a second traffic engine. The first traffic engine transitions to the red rest state. Then the second traffic engine takes control of the traffic signals and enters the flash exit mode, thus completing the transition.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 14, 2012
    Inventors: Mark Simpson, Peter W. Ragsdale