Granted Patent
Utility
US 5,331,584 · App. 07/997,326
Discrete cosine transformation processor
Inventors:
Toshiaki Kitsuki, Akira Sawada
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Dec 28, 1992
Inventors
Toshiaki Kitsuki
Akira Sawada
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.