Granted Patent
Utility
US 6,282,682 · App. 09/245,223
Automatic test equipment using sigma delta modulation to create reference levels
Inventors:
Ernest P. Walker, Ronald A. Sartschev, Allan M. Ryan, Jr., Eric D. Blom
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Feb 5, 1999
Inventors
Ernest P. Walker
Ronald A. Sartschev
Allan M. Ryan, Jr.
Eric D. Blom
Assignee (at issue)
Teradyne, 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.