Granted Patent
Utility
US 6,570,907 · App. 09/411,309
Simplified finite impulse response (FIR) digital filter for direct sequencespread spectrum communication
Inventors:
Paul W. Dent, David Barrow
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Oct 4, 1999
Inventors
Paul W. Dent
David Barrow
Assignee (at issue)
ERICSSON GMBH
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.