Patents by Inventor Fredrick W. Ervin

Fredrick W. Ervin 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).

  • Partitioning a network into sub-networks based on user utility
    Patent number: 8700417
    Abstract: To perform a query, a set of nodes for an origin is loaded, it is determined if a node is a destination for each node of the set of nodes, and a path is recorded in response to the node being the destination. A hypothetical path is generated in response to the node not being the destination, it is determined if the hypothetical path exceeds a stopping rule, and the hypothetical path is recorded in response to the hypothetical path not exceeding the stopping rule.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: April 15, 2014
    Assignee: The Boeing Company
    Inventors: Zhengjie Zhang, Richard Lonsdale, Fredrick W. Ervin, Roger A. Parker
  • Determining a stop from a layover in a multi-stop itinerary
    Patent number: 8255250
    Abstract: To determine if an intermediate stop in a multistop travel itinerary is a layover or an intermediate destination, a passenger utility value is calculated for the intermediate stop and the passenger utility value for the intermediate stop is compared to a passenger utility for a layover. The intermediate stop is determined to be a layover in response to the passenger utility value for the intermediate stop being greater than or equal to the passenger utility for a layover and the intermediate stop is determined to be an intermediate destination in response to the passenger utility value for the intermediate stop being less than the passenger utility for a layover.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: August 28, 2012
    Assignee: The Boeing Company
    Inventors: Roger A. Parker, Zhengjie Zhang, Richard Lonsdale, Fredrick W. Ervin
  • DETERMINING A STOP FROM A LAYOVER IN A MULTI-STOP ITINERARY
    Publication number: 20090106083
    Abstract: To determine if an intermediate stop in a multistop travel itinerary is a layover or an intermediate destination, a passenger utility value is calculated for the intermediate stop and the passenger utility value for the intermediate stop is compared to a passenger utility for a layover. The intermediate stop is determined to be a layover in response to the passenger utility value for the intermediate stop being greater than or equal to the passenger utility for a layover and the intermediate stop is determined to be an intermediate destination in response to the passenger utility value for the intermediate stop being less than the passenger utility for a layover.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 23, 2009
    Inventors: Roger A. Parker, Zhengjie Zhang, Richard Lonsdale, Fredrick W. Ervin
  • PARTITIONING A NETWORK INTO SUB-NETWORKS BASED ON USER UTILITY
    Publication number: 20080301159
    Abstract: To perform a query, a set of nodes for an origin is loaded, it is determined if a node is a destination for each node of the set of nodes, and a path is recorded in response to the node being the destination. A hypothetical path is generated in response to the node not being the destination, it is determined if the hypothetical path exceeds a stopping rule, and the hypothetical path is recorded in response to the hypothetical path not exceeding the stopping rule.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Inventors: Zhengjie Zhang, Richard Lonsdale, Fredrick W. Ervin