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Accurate Tracking Of Web Features Through Converting Processes

  • US 20090088889A1
  • Filed: 09/24/2008
  • Published: 04/02/2009
  • Est. Priority Date: 09/27/2007
  • Status: Active Grant
First Claim
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1. A system for tracking features of a moving sheet having naturally varying properties, said system comprising:

  • a computing device having therein program code usable by said computing device, said program code comprising;

    code configured to obtain a sheet defect signal during a first sheet making process;

    code configured to obtain a first pattern of the naturally varying properties of said moving sheet during said first sheet making process;

    code configured to obtain a second pattern of the naturally varying properties of said moving sheet during a second sheet making process; and

    code configured to locate said sheet defect during a second sheet making process by correlating said first and said second patterns.

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