Granted Patent
Utility
US 6,418,170 · App. 09/499,173
Method and apparatus for achieving 180° phase invariant transmission in a PCM modem system
Inventors:
Patrick Maurer, Dae-Young Kim, Sepehr Mehrabanzad
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Feb 7, 2000
Inventors
Patrick Maurer
Dae-Young Kim
Sepehr Mehrabanzad
Assignee (at issue)
Motorola, Inc.
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.