Granted Patent
Utility
US 5,426,470 · App. 08/126,188
Luminance and chrominance signal separation circuit employing comparison of level detected signal with a reference level
Inventors:
Kiroyuki Kita, Toshio Sarugaku, Masaharu Tokuhara
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Sep 24, 1993
Inventors
Kiroyuki Kita
Toshio Sarugaku
Masaharu Tokuhara
Assignee (at issue)
SONY GROUP 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.