Granted Patent
Utility
US 5,648,738 · App. 08/333,488
Read channel having auto-zeroing and offset compensation, and power-down between servo fields
Inventors:
David R. Welland, William G. Bliss
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Nov 1, 1994
Inventors
David R. Welland
William G. Bliss
Assignee (at issue)
Cirrus Logic 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.