Granted Patent
Utility
US 5,774,567 · App. 08/420,359
Audio codec with digital level adjustment and flexible channel assignment
Inventor:
Lawrence F. Heyl
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Apr 11, 1995
Inventor
Lawrence F. Heyl
Assignee (at issue)
Apple Computer 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.