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AssigneeGracenote, Inc.
InventorsJob Oostveen, Warner Rudolph Ten Kate, Adrianus Denissen, David Roberts
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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.
A method of relating one or more trigger actions with a multimedia signal (101), the method comprising the steps of
A method of detecting one or more trigger actions in a multimedia signal (101), the method comprising the steps of:
A multimedia device (200) for relating one or more trigger actions with a multimedia signal (101), the device comprising
A audio and/or video playback device (300) for detecting one or more trigger actions in a multimedia signal (101) comprising:
Dependencies are inferred from the claim text.