A method of associating metadata with a media signal receives an identifier for the media signal, uses the identifier to look up metadata in a metadata database, validates the metadata by checking attributes of the media signal relative to at least a portion of the metadata to provide validated metadata;...http://www.google.fr/patents/US8121342?utm_source=gb-gplus-shareBrevet US8121342 - Associating metadata with media signals, and searching for media signals using metadata
Associating metadata with media signals, and searching for media signals ...
