Granted Patent
Utility
US 6,031,797 · App. 09/095,832
Media playback device capable of shuffled playback based on a user's preferences
Inventors:
John M. Van Ryzin, Peter Douma
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Jun 11, 1998
Inventors
John M. Van Ryzin
Peter Douma
Assignees (at issue)
SONY GROUP CORPORATION
SONY ELECTRONICS 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.