Granted Patent
Utility
US 6,628,175 · App. 10/063,167
Voltage-controlled crystal oscillator (VCXO) using MOS varactors coupled to an adjustable frequency-tuning voltage
Inventors:
Zhangqi Guo, Hide Hattori
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Mar 27, 2002
Inventors
Zhangqi Guo
Hide Hattori
Assignee (at issue)
Pericom Semiconductor 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.