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Method and apparatus for automatically detecting patterns in digital point-ordered signals

United States Patent

5,825,672
October 20, 1998
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
The present invention is a method and system for detecting a physical feature of a test piece by detecting a pattern in a signal representing data from inspection of the test piece. The pattern is detected by automated additive decomposition of a digital point-ordered signal which represents the data. The present invention can properly handle a non-periodic signal. A physical parameter of the test piece is measured. A digital point-ordered signal representative of the measured physical parameter is generated. The digital point-ordered signal is decomposed into a baseline signal, a background noise signal, and a peaks/troughs signal. The peaks/troughs from the peaks/troughs signal are located and peaks/troughs information indicating the physical feature of the test piece is output.
Brudnoy; David M. (Albany, NY)
The United States of America as represented by the United States Department of Energy (Washington, DC)
08/ 736,751
October 25, 1996
The U.S. government has rights in this invention pursuant to a contract awarded by the Department of Energy.