发明名称 |
Electronic media player with metadata based control and method of operating the same |
摘要 |
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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申请公布号 |
US7343347(B2) |
申请公布日期 |
2008.03.11 |
申请号 |
US20030680899 |
申请日期 |
2003.10.08 |
申请人 |
TIME WARNER INC. |
发明人 |
OSTROVER LEWIS S.;BLUMENFELD STEVEN M. |
分类号 |
H04K1/00;G06F21/00;H04L9/00 |
主分类号 |
H04K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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