Granted Patent
Utility
US 6,775,629 · App. 09/880,167
System and method for estimating one or more tones in an input signal
Inventors:
Yong Rao, Michael D. Cerna
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Jun 12, 2001
Inventors
Yong Rao
Michael D. Cerna
Assignee (at issue)
National Instruments Corporation
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.