Granted Patent
Utility
US 6,570,933 · App. 09/308,709
Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
Inventor:
Jarmo Makinen
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Jun 7, 1999
Inventor
Jarmo Makinen
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.