Patents by Inventor Padraig Butler

Padraig Butler 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).

  • Machine vision system for measuring heights of items
    Patent number: 7180606
    Abstract: A machine vision system (1) has two laser sources (2, 3) to illuminate a solder deposit from both sides for comprehensive coverage without occlusion. The camera (4) has an FGPA (32) programmed to define a subset of the sensor array (20) as a region of interest to be processed for each laser source (2, 3). This reduces the amount of data transfer and processing required. The image line (31) is dynamically maintained in the region of interest by adjustement of camara Z position according to warp of the substrate (S).
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: February 20, 2007
    Assignee: MV Research Limited
    Inventors: James Mahon, Padraig Butler, John Milroy, Kevin Godden, Mohsen Abdollahi, Peter Conlon
  • Image processing in machine vision systems
    Publication number: 20060221406
    Abstract: Images are captured of linear illumination with improved identification of lines and elimination of noise. A most probable line of multiple lines is identified as the one which is widest, and two parallel lines in proximity are regarded as one if their separation is two or one dark pixels. There is an upper line width limit, to eliminate blooming.
    Type: Application
    Filed: February 28, 2006
    Publication date: October 5, 2006
    Inventors: Padraig Butler, Anthony Mapstone, James Mahon
  • Machine vision system
    Publication number: 20040239950
    Abstract: A machine vision system (1) has two laser sources (2, 3) to illuminate a solder deposit from both sides for comprehensive coverage without occlusion. The camera (4) has an FGPA (32) programmed to define a subset of the sensor array (20) as a region of interest to be processed for each laser source (2, 3). This reduces the amount of data transfer and processing required. The image line (31) is dynamically maintained in the region of interest by adjustement of camara Z position according to warp of the substrate (S).
    Type: Application
    Filed: July 7, 2004
    Publication date: December 2, 2004
    Inventors: James Mahon, Padraig Butler, John Milroy, Kevin Godden, Mohsen Abdollahi, Peter Conlon