Granted Patent
Utility
US 4,628,530 · App. 06/579,737
Automatic equalizing system with DFT and FFT
Inventors:
Franciscus J. Op de Beek, Jacob M. Van Nieuwland
Patented Case
View Patent ↗
Granted: Dec 9, 1986
Filed: Feb 13, 1984
Inventors
Franciscus J. Op de Beek
Jacob M. Van Nieuwland
Assignee (at issue)
U.S. Philips 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.