Granted Patent
Utility
US 6,570,394 · App. 09/761,398
Tests for non-linear distortion using digital signal processing
Inventor:
Thomas H. Williams
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Jan 16, 2001
Inventor
Thomas H. Williams
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.