IN-BAND DATA RECOGNITION AND SYNCHRONIZATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for recognizing and synchronizing in-band data in a multimedia device.

SOLUTION: A content stream includes in-band data. The in-band data are processed and in-band data pattern data associated with the content stream are created. Metadata are attached to event identification data. The event identification data including hash value sequence data and command data are provided to multimedia devices which receive broadcasted multimedia content streams containing video programs with in-band data. The in-band data are processed and compared to the event identification data. If a match occurs, the multimedia device uses the metadata to perform specified actions.

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