Patents by Inventor Tom C. Rohr

Tom C. Rohr 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 light shading in terrain rendering applications
    Patent number: 8031193
    Abstract: In some embodiments, a method for high-performance terrain rendering may include one or more of the following steps: (a) obtaining elevation data, (b) determining slope of a terrain surface, (c) selecting a shading model to apply to the terrain surface based upon the slope of the terrain surface, (d) determining if a vehicle's heading has changed, and (e) aligning the shading model index based upon current heading.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: October 4, 2011
    Assignee: Rockwell Collins, Inc.
    Inventors: James P. Henderson, Jeffrey D. Russell, Tom C. Rohr
  • Method and apparatus for protected graphics generation
    Patent number: 7782329
    Abstract: Presently disclosed are a method and apparatus for generating graphics in a protected manner by establishing a user graphics partition while in an executive context. Once the user context is established, an operating mode is switched to the user context and then executing a user graphics program while in the user context. The operating mode then reverts to the executive context when the user context expires.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: August 24, 2010
    Assignee: Rockwell Collins, Inc.
    Inventors: Tom C. Rohr, Jeffrey D. Russell, Martin Pauly