发明名称 |
Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal |
摘要 |
This invention relates to a device and a method of relating one or more trigger actions with a multimedia signal and corresponding method and device for detecting one or more trigger actions in a multimedia signal. One fingerprint is generated on the basis of a segment of the multimedia signal at each trigger time point. The generated fingerprint(s) is stored in a database and communicated to playback devices. During playback fingerprints of the multimedia signal are generated and matched against fingerprints in the database. When a match is found, associated trigger actions is retrieved. The trigger time point is determined as a time point near or at a segment of the multimedia signal that caused a fingerprint to match. In this way, a simple and reliable way of detecting trigger markers for trigger actions is enabled without modifying the multimedia signal.
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申请公布号 |
US2006190776(A1) |
申请公布日期 |
2006.08.24 |
申请号 |
US20040564297 |
申请日期 |
2004.07.05 |
申请人 |
OOSTVEEN JOB C;TEN KATE WARNER RUDOLPH T;DENISSEN ADRIANUS J M;ROBERTS DAVID K |
发明人 |
OOSTVEEN JOB C.;TEN KATE WARNER RUDOLPH T.;DENISSEN ADRIANUS J.M.;ROBERTS DAVID K. |
分类号 |
G11B20/20;G06K5/04;G11B5/00;H04N7/26 |
主分类号 |
G11B20/20 |
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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