Granted Patent
Utility
US 4,674,121 · App. 06/777,163
Circuit for detecting the level of noise in FM signal for use in AM/FM receiver
Inventors:
Masami Miura, Naotoshi Higashiyama
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Sep 18, 1985
Inventors
Masami Miura
Naotoshi Higashiyama
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.