Granted Patent
Utility
US 6,816,558 · App. 09/765,492
Channel impulse response estimation using received signal variance
Inventors:
Olli Piirainen, Aki Happonen
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Jan 18, 2001
Inventors
Olli Piirainen
Aki Happonen
Assignee (at issue)
Nokia
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.