Granted Patent
Utility
US 5,153,593 · App. 07/514,990
Multi-stage sigma-delta analog-to-digital converter
Inventors:
Robert H. Walden, Gabor C. Temes, Tanju Cataltepe
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Apr 26, 1990
Inventors
Robert H. Walden
Gabor C. Temes
Tanju Cataltepe
Assignee (at issue)
Hughes Aircraft Company
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.