Patents by Inventor Kevin E. Duffey

Kevin E. Duffey 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 system for monitoring and controlling workpieces
    Patent number: 6975747
    Abstract: Methods and systems for monitoring the delivery of workpieces to a position by: storing a digital reference image of the position prior to the delivery of workpieces; storing a digital operating image of the position during delivery of workpieces; performing image arithmetic on the reference image and the operating image to produce a digital evaluation image comprised of a plurality of pixels; establishing a threshold image condition for the evaluation image that correlates to the existence of an operating condition relevant to the control of the delivery of workpieces; and examining the pixels in the evaluation image to determine whether the threshold image condition is met.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: December 13, 2005
    Inventors: Don A. Tran, Kevin E. Duffey
  • Method and system for monitoring and controlling workpieces
    Publication number: 20030035577
    Abstract: Methods and systems for monitoring the delivery of workpieces to a position by: storing a digital reference image of the position prior to the delivery of workpieces; storing a digital operating image of the position during delivery of workpieces; performing image arithmetic on the reference image and the operating image to produce a digital evaluation image comprised of a plurality of pixels; establishing a threshold image condition for the evaluation image that correlates to the existence of an operating condition relevant to the control of the delivery of workpieces; and examining the pixels in the evaluation image to determine whether the threshold image condition is met.
    Type: Application
    Filed: August 14, 2001
    Publication date: February 20, 2003
    Applicant: Robotic Vision Systems, Inc.
    Inventors: Don A. Tran, Kevin E. Duffey