Granted Patent
Utility
US 6,192,094 · App. 09/470,622
Digital phase-frequency detector
Inventors:
Helmut Herrmann, Stefan Herzinger
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Dec 22, 1999
Inventors
Helmut Herrmann
Stefan Herzinger
Assignee (at issue)
Infineon Technologies AG
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.