Patents by Inventor Marc Robert Schuman

Marc Robert Schuman 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: 5641897
    Abstract: The scanning apparatus linearization and calibration system includes an electromechanical scanner having a sample stage portion, and a deflecting member, mounted between the scanning means and a fixed mounting member, that undergoes deflection in response to displacement of the scanner sample stage portion in at least one dimension of displacement. Strain gauges are mounted to the deflecting member for measuring the deflection of the deflecting member and for generating a deflection output signal indicative of an amount of deflection of the deflecting member, to provide a highly sensitive indication of actual displacement of the sample stage of the scanning apparatus. Control circuitry also provides for open loop displacement correction and for closed loop feedback correction of the position of the scanner sample stage.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: June 24, 1997
    Assignee: Topometrix
    Inventor: Marc Robert Schuman