Electronic media player with metadata based control and...

Details Electronic media player with metadata based control and... Electronic media player with metadata based control and...

2003-10-08

2008-03-11

Hewitt, II, Calvin Loyd (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S050000, C705S057000, C705S059000

Reexamination Certificate

active

07343347

ABSTRACT:
A method and apparatus is described that prevents viewing or other type of playback of unauthorized copies of media files, whether received through a network or retrieved from a magnetic or optical disc. The apparatus uses data in a metadata field that forms a part of the media files. Viewing or playback is allowed only if the data meets certain predetermined criteria. An apparatus is also provided that can be used to generate a new metadata field if a media file has a metadata field with unacceptable data.

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