Patents by Inventor Lance A. Legan

Lance A. Legan 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).

  • Animated radar signal display with fade
    Patent number: 7020434
    Abstract: An exemplary embodiment of the invention relates to a computer-based program and system for displaying visually realistic raw radar signals. The computer program includes a RADAR display fade algorithm. The algorithm includes alpha blending and texture mapping for producing a slow fade. Use of two buffers and transfer of data between the buffers to produce a smooth update of the visual display while the sweep of the RADAR ray advances and new or updated RADAR contacts are displayed.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: March 28, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Lance A. Legan
  • Animated radar signal display with fade
    Publication number: 20050164147
    Abstract: An exemplary embodiment of the invention relates to a computer-based program and system for displaying visually realistic raw radar signals. The computer program includes a RADAR display fade algorithm. The algorithm includes alpha blending and texture mapping for producing a slow fade. Use of two buffers and transfer of data between the buffers to produce a smooth update of the visual display while the sweep of the RADAR ray advances and new or updated RADAR contacts are displayed.
    Type: Application
    Filed: January 2, 2004
    Publication date: July 28, 2005
    Inventor: Lance Legan