Patents by Inventor Dominic F. Haigh

Dominic F. Haigh 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).

  • Inspection window guard banding
    Patent number: 7233871
    Abstract: A technique for developing an inspection program for a circuit board to be run on an AOI system includes determining a characteristic, such as average gray level, of each window of the circuit board. The positions of the windows are varied slightly to simulate expected errors in the placement of the windows relative to the circuit board. After varying the positions of the windows, the characteristic of each window is determined again. Different values of the characteristic corresponding to slightly different positions are compared for each window. Values that substantially change for a window indicate a strong sensitivity to position. These windows may be reported to a programmer for corrective action.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: June 19, 2007
    Assignee: Landrex Technologies Co., Ltd.
    Inventors: Douglas W. Raymond, Richard D. Fleming, John Haddon, Dominic F. Haigh
  • Inspection window guard banding
    Publication number: 20040181352
    Abstract: A technique for developing an inspection program for a circuit board to be run on an AOI system includes determining a characteristic, such as average gray level, of each window of the circuit board. The positions of the windows are varied slightly to simulate expected errors in the placement of the windows relative to the circuit board. After varying the positions of the windows, the characteristic of each window is determined again. Different values of the characteristic corresponding to slightly different positions are compared for each window. Values that substantially change for a window indicate a strong sensitivity to position. These windows may be reported to a programmer for corrective action.
    Type: Application
    Filed: March 10, 2003
    Publication date: September 16, 2004
    Inventors: Douglas W. Raymond, Richard D. Fleming, John Haddon, Dominic F. Haigh