Granted Patent
Utility
US 5,274,375 · App. 07/870,059
Delta-sigma modulator for an analog-to-digital converter with low thermal noise performance
Inventor:
Charles D. Thompson
Patented Case
View Patent ↗
Granted: Dec 28, 1993
Filed: Apr 17, 1992
Inventor
Charles D. Thompson
Assignee (at issue)
Crystal Semiconductor 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.