Granted Patent
Utility
US 6,232,900 · App. 09/299,089
Second order digital filter requiring only one sigma delta modulator
Inventors:
Paul D. Hendricks, Lane A. Smith
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Apr 26, 1999
Inventors
Paul D. Hendricks
Lane A. Smith
Assignee (at issue)
LUCENT TECHNOLOGIES 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.