APPARATUS FOR RE-MULTIPLEXING AUXILIARY DATA AND VIDEO SERVER

摘要

PROBLEM TO BE SOLVED: To succeed original auxiliary data even after a digital video signal resulting from multiplexing the auxiliary data is down converted.

SOLUTION: An apparatus for re-multiplexing auxiliary data comprises: an extraction means 22 for extracting auxiliary data which are multiplexed in an auxiliary data region of an inputted digital video signal, from the digital video signal; a storage means 23 for storing the auxiliary data extracted by the extraction means 22; a down converter 24 for down converting the digital video signal from which the auxiliary data are extracted by the extraction means 22; and multiplexing means 28 and 29 each for multiplexing the auxiliary data read from the storage means in the auxiliary data region of the digital video signal down converted by the down converter 24.

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