Granted Patent
Utility
US 5,796,815 · App. 08/760,818
Communications device with improved ring signal detection
Inventors:
David Guercio, Zheng Xie
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Dec 5, 1996
Inventors
David Guercio
Zheng Xie
Assignee (at issue)
Advanced Micro Devices, 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.