Granted Patent
Utility
US 5,528,035 · App. 08/226,588
Digital signal processing system for removing DC bias in the output of pyroelectric and similar detectors
Inventors:
David Michael Masarik, Frank N. Cheung, Robert S. Hayes, Robert W. Klatt
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Apr 12, 1994
Inventors
David Michael Masarik
Frank N. Cheung
Robert S. Hayes
Robert W. Klatt
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.