Granted Patent
Utility
US 5,122,806 · App. 07/531,186
Method for finding defective active array modules using an FFT over phase states
Inventor:
Michael D. Julian
Patented Case
View Patent ↗
Granted: Jun 16, 1992
Filed: May 31, 1990
Inventor
Michael D. Julian
Assignee (at issue)
Hughes Aircraft Company
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.