Granted Patent
Utility
US 5,544,081 · App. 08/294,825
Output filter for oversampling digital-to-analog converter
Inventor:
Akira Yukawa
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Aug 26, 1994
Inventor
Akira Yukawa
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.