Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal

A device comprising:

• a fingerprint module implemented in hardware, the fingerprint module being configured to:
• provide a trigger time point (Tn;
• Tn+1) of a plurality of trigger time points within a multimedia signal,
• the trigger time point (Tn;
• Tn+1) corresponding to a segment of a plurality of segments of the multimedia signal,
• the trigger time point (Tn;
• Tn+1) corresponding to at least one of a predetermined distance from the start of the segment or a predetermined distance from the end of the segment,
• each segment of the plurality of segments being identified by one of the plurality of trigger time points and corresponding to specific content to be shown to a user;
• and
• provide a representation of an action that corresponds to the specific content to be shown in the segment of the multimedia signal,
• the trigger time point (Tn;
• Tn+1) indicating a time point within the multimedia signal at which the action is to be triggered during a playback of the multimedia signal;
• and
• derive a fingerprint based on the segment of the multimedia signal;
• and
• a database module configured to associate the derived fingerprint with the action.

A non-transitory computer readable storage medium comprising instructions that, when executed, cause one or more processors to execute operations comprising:

• providing a trigger time point (Tn;
• Tn+1) of a plurality of trigger time points within a multimedia signal,
• the trigger time point (Tn;
• Tn+1) corresponding to a segment of a plurality of segments of the multimedia signal,
• the trigger time point (Tn;
• Tn+1) corresponding to at least one of a a predetermined distance from the start of the segment or a predetermined distance from the end of the segment,
• each segment of the plurality of segments being identified by one of the plurality of trigger time points and corresponding to specific content to be shown to a user;
• providing a representation of an action that corresponds to the specific content to be shown by the segment of the multimedia signal,
• the trigger time point (Tn;
• Tn+1) indicating a time point within the multimedia signal at which the action is to be triggered during a playback of the multimedia signal;
• deriving a fingerprint based on the segment of the multimedia signal;
• and
• associating the derived fingerprint with the action.