Patents by Inventor Aaron Ray Crooker

Aaron Ray Crooker 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 to compensate for imperfect scanner motion
    Patent number: 7605953
    Abstract: A method to compensate for imperfect scanner motion in a scanning apparatus having a moveable scanner includes generating an error array by measuring errors in a scanner position at each of a plurality of spaced positions along a direction of travel of the scanner; generating an error compensation array from the error array based on a low frequency component of the error array; and using the error compensation array to adjust at least one parameter associated with the scanning apparatus during a document scanning operation.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: October 20, 2009
    Assignee: Lexmark International, Inc.
    Inventors: Aaron Ray Crooker, Noah Jonathon Gawlik, Marc Alan Herwald, Michael Anthony Marra, III, Donald Norman Spitz