| 摘要 |
<p>The invention relates to a synchronization system (5) and method. The synchronization system comprises a specification unit (1) for synchronization signals associated with an audiovisual program (15), the latter comprising audiovisual content and control information, a recognition unit (2) for said synchronization signals in a carrier flow of said program transmitted via a LAN broadcast, by recognition of at least one portion extracted from the audiovisual content, and an activation unit (3) triggering an action when said signals are detected. Recognition elements are prepared and transmitted to the recognition unit by the specification unit enabling said extracted portion, which includes instructions on the extraction of the portion of content in at least one audiovisual program flow previously received by the recognition unit via the LAN broadcast, to be obtained. In the variants, the recognition elements (11) are obtained independently from the specification unit. The invention can be used for interactive television and automatic recordings.</p> |
