Granted Patent
Utility
US 5,544,178 · App. 08/258,308
Method and apparatus for encoding data in a PRML class-IV digital communication channel
Inventor:
Christopher P. Zook
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Jun 10, 1994
Inventor
Christopher P. Zook
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.