Electronic media player with metadata based control and method of operating the same
US7343347B2 · kind B2 · utility
8Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Oct 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.