Granted Patent
Utility
US 6,236,685 · App. 09/092,840
Pragmatic trellis-coded digital communication with multi-stage branch metrics
Inventor:
Douglas A. Oppedahl
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Jun 5, 1998
Inventor
Douglas A. Oppedahl
Assignee (at issue)
Sicom, 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.