Granted Patent
Utility
US 4,603,347 · App. 06/489,311
Intraframe coding and decoding equipment for video signals of different quality
Inventors:
Hideo Kuroda, Naoki Mukawa
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Apr 28, 1983
Inventors
Hideo Kuroda
Naoki Mukawa
Assignee (at issue)
Nippon Telegraph and Telephone Public 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.