Granted Patent
Utility
US 5,486,867 · App. 08/159,975
High resolution digital phase detector
Inventors:
De Dzwo Hsu, Frederick Williams, Wendy Liu
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Nov 30, 1993
Inventors
De Dzwo Hsu
Frederick Williams
Wendy Liu
Assignee (at issue)
Raytheon 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.