Granted Patent
Utility
US 6,754,147 · App. 10/065,769
Phase locked loop for controlling recordable optical disk drive
Inventors:
Tse-Hsiang Hsu, Hung-Ching Chen
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Nov 18, 2002
Inventors
Tse-Hsiang Hsu
Hung-Ching Chen
Assignee (at issue)
MediaTek 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.