发明名称 |
Motion picture watermarking technique |
摘要 |
Watermarking of a motion picture release print occurs by providing on at least one soundtrack at least one tone of a particular frequency on at least one location unique to the release print. Typically, placement of the particular frequency tone occurs on location(s) where the tone will have minimal impact on the existing soundtrack audio. A record of location(s) at which the particular frequency tone appears on the release print is maintained to facilitate comparison with the tones detected in audio visual work to determine whether the audio of an illegal media was recorded from that release print. |
申请公布号 |
US8123358(B2) |
申请公布日期 |
2012.02.28 |
申请号 |
US20060795858 |
申请日期 |
2006.01.23 |
申请人 |
TURCHETTA DANIELE;PICCARDI GIUSEPPE;MASINI MASSIMO;THOMSON LICENSING |
发明人 |
TURCHETTA DANIELE;PICCARDI GIUSEPPE;MASINI MASSIMO |
分类号 |
G10L11/00 |
主分类号 |
G10L11/00 |
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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