Patents by Inventor Michael Bals

Michael Bals 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).

  • Digitizer tablet with regional error correction
    Patent number: 5157227
    Abstract: A digitizer tablet exhibiting improved regional error correction comprises evaluation of two linear equations to correct the generated raw coordinates. The equations contain certain constants unique to tablet regions exhibiting similar error patterns. These constants are empirically determined and stored for use in the evaluations.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: October 20, 1992
    Assignee: Summagraphics Corporation
    Inventors: Robert M. McDermott, Michael Bals