Hewlett-packard Development Company, L.p.

United States of America As Represented by the Administrator of Nasa

Fu-tai Shih

Kapil S Sheth

Heinz Erzberger

B David McNally

Alexander R Morando

Alexis A Clymer

Arthur S Harkin

Gita Murthy

A dynamic constraint avoidance route system automatically analyzes routes of aircraft flying, or to be flown, in or near constraint regions and attempts to find more time and fuel efficient reroutes around current and predicted constraints. The dynamic constraint avoidance route system continuously analyzes all flight routes and provides reroute advisories that are dynamically updated in real time. The dynamic constraint avoidance route system includes a graphical user interface that allows users to visualize, evaluate, modify if necessary, and implement proposed reroutes.

Method and system for air traffic rerouting for airspace constraint resolution

An e-commerce web site has an application tier and a web tier, each with multiple servers. The application tier runs the resource-intensive functions germane to the site's purpose; while the web tier provides the primary interface for clients. The web tier implements admission control so that some requests can be deferred during periods of heavy traffic. In addition, the web tier can request additional web-tier and application-tier resources when they can be added cost effectively. The application tier monitors its own resource utilization and communicates resource-utilization data to the web tier. The web tier uses this application-tier resource-utilization data to determine its deferral criteria. In addition, the web-tier can monitor its own resource utilization and take the results into account in determining the deferral criteria. By monitoring application-tier utilization at the application tier rather than remotely at the web tier, more accurate and more flexible information is obtained, allowing for a better-optimized deferral scheme.

Tiered web site with web-tier admission control based on utilization data generated on application tier

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San Jose, CA, United States of America

Fu-tai Shih