Patents by Inventor Rene E. Sanchez

Rene E. Sanchez 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).

  • Method and apparatus for using fast fourier transform feedback to compensate for non-linear motion
    Patent number: 6725101
    Abstract: A non-linear control (NLC) system for controlling performance of a device. The NLC system comprises a controller system and a first feedback compensator connected to the controller. The first feedback compensator compensates for linear error performance of the device; the second feedback compensator compensates for non-linear error performance of the device.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 20, 2004
    Assignee: Xerox Corporation
    Inventors: Rene E. Sanchez, Joannes N. M. de Jong, Lloyd A. Williams, Vincent M. Williams, Daniel W. Costanza
  • Method and apparatus for using fast fourier transform feedback to compensate for non-linear motion
    Publication number: 20020072812
    Abstract: A non-linear control (NLC) system for controlling performance of a device. The NLC system comprises a controller system and a first feedback compensator connected to the controller. The first feedback compensator compensates for linear error performance of the device; the second feedback compensator compensates for non-linear error performance of the device.
    Type: Application
    Filed: December 13, 2000
    Publication date: June 13, 2002
    Inventors: Rene E. Sanchez, Joannes N.M. de Jong, Lloyd A. Williams, Vincent M. Williams, Daniel W. Costanza