发明名称 |
METHOD AND DEVICE FOR GENERATING AND DETECTING A FINGERPRINT FUNCTIONING AS A TRIGGER MARKER IN A MULTIMEDIA SIGNAL |
摘要 |
A device is configured to perform a method that detects a trigger marker for an action corresponding to a segment of a multimedia signal. A fingerprint is generated based on the segment of the multimedia signal at a trigger time point. The generated fingerprint is stored in a database and communicated to the device. During playback of the multimedia signal, fingerprints of segments of the multimedia signal are generated and matched against fingerprints in the database. When a match is found, one or more associated actions for the segment are retrieved by the device. The trigger time point may be determined as a time point near or at the segment of the multimedia signal with the matched fingerprint. In this way, trigger markers for actions may be enabled without modifying the multimedia signal. |
申请公布号 |
US2015189380(A1) |
申请公布日期 |
2015.07.02 |
申请号 |
US201514659044 |
申请日期 |
2015.03.16 |
申请人 |
Gracenote, Inc. |
发明人 |
Oostveen Job Cornelis;Ten Kate Warner Rudolph Theophile;Denissen Adrianus Johannes Maria;Roberts David K. |
分类号 |
H04N21/458;H04N21/44;H04N21/6587;H04N21/439 |
主分类号 |
H04N21/458 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
accessing a database that associates a first fingerprint with a first action, the first fingerprint being for a first trigger time point of a plurality of trigger time points within a multimedia signal, each trigger time point of the plurality of trigger time points corresponding to a segment of a plurality of segments of the multimedia signal; receiving a second trigger time point of the plurality of trigger time points and a second action; deriving, by a processor of a machine, a second fingerprint based on a segment of the multimedia signal that corresponds to the second trigger time point; and updating the database to associate the second fingerprint with the second action. |
地址 |
Emeryville CA US |