Granted Patent
Utility
US 6,747,522 · App. 10/138,027
Digitally controlled crystal oscillator with integrated coarse and fine control
Inventors:
David Pietruszynski, Douglas R. Frey
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: May 3, 2002
Inventors
David Pietruszynski
Douglas R. Frey
Assignee (at issue)
Silicon Laboratories Inc.
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.