Granted Patent
Utility
US 6,421,402 · App. 09/101,754
Method for calculating impulse response, and receiver
Inventor:
Olli Piirainen
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jul 16, 1998
Inventor
Olli Piirainen
Assignee (at issue)
Nokia Telecommunications Oy
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.