Granted Patent
Utility
US 5,012,244 · App. 07/429,214
Delta-sigma modulator with oscillation detect and reset circuit
Inventors:
David R. Wellard, Donald A. Kerth, Bruce P. Del Signore, Eric J. Swanson
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Oct 27, 1989
Inventors
David R. Wellard
Donald A. Kerth
Bruce P. Del Signore
Eric J. Swanson
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.