Granted Patent
Utility
US 5,424,739 · App. 08/171,485
Device and method for digitally shaping the quantization noise of an N-bit digital signal, such as for digital-to-analog conversion
Inventor:
Steven R. Norsworthy
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Dec 21, 1993
Inventor
Steven R. Norsworthy
Assignee (at issue)
AT&T CORP.
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.