Granted Patent
Utility
US 5,197,021 · App. 07/551,628
System and circuit for the calculation of the bidimensional discrete transform
Inventors:
Silvio Cucchi, Marco Fratti
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Jul 11, 1990
Inventors
Silvio Cucchi
Marco Fratti
Assignee (at issue)
Telettra - Telefonia Elettronica e Radio S.p.A.
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.