Granted Patent
Utility
US 5,617,037 · App. 08/520,128
Mixed analog and digital integrated circuit having a comparator to compare original digital data with data having undergone successive D/A and A/D conversion and level shifting
Inventor:
Hiroshi Matsumoto
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Aug 28, 1995
Inventor
Hiroshi Matsumoto
Assignee (at issue)
NEC CORPORATION
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.