Patents by Inventor Lennart Engelhardt

Lennart Engelhardt 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).

  • Patent number: 6398670
    Abstract: A golf training and game system is situated in a golf playing facility with tee and target areas. At each target area an overview video camera captures an image of the target area when a golf ball is hit from a tee. A target measuring system performs image improvement methods on the captured image, detects possible balls, and calculates coarse real coordinates for the possible balls. A memory stores real coordinates for previously-identified balls. Coordinates for possible balls and identified balls are compared to determine new balls to be identified. New ball coordinates are used to position, zoom and focus a zoom video camera and capture a fine image. The target measuring system performs image improvement methods and pattern recognition on the fine image to identify the new balls and get fine real coordinates. Information sent to a tee terminal gives feedback to the players.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: June 4, 2002
    Assignee: Xolf, Inc.
    Inventors: Lennart Engelhardt, Magnus Dahl, Nils Dahl