Granted Patent
Utility
US 5,345,406 · App. 07/935,018
Bandpass sigma delta converter suitable for multiple protocols
Inventor:
Tim A. Williams
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Aug 25, 1992
Inventor
Tim A. Williams
Assignee (at issue)
Wireless Access
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.