Granted Patent
Utility
US 6,191,649 · App. 09/346,545
Quadrature demodulator and method for quadrature demodulation
Inventors:
Yasushi Sugita, Masaki Nishikawa
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Jul 2, 1999
Inventors
Yasushi Sugita
Masaki Nishikawa
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.