Patent ID: 7536027

Claim:
A digital watermark embedding method for embedding watermark information in video digital content, said method comprising steps of: embedding, throughout the video digital content, metadata identification information for identifying metadata for said video digital content; and embedding, in each scene of said video digital content, scene identification information for identifying said scene, being employed for reproducing video digital content and further comprising the steps of: detecting pointer information that is embedded in said video digital content and that points to the location of metadata in which information concerning said video digital content is written; employing said pointer information to obtain said metadata via a network; employing said metadata to generate index information corresponding to a scene in said video digital content; and displaying said index information and said video digital content in correlation with each other, wherein said step of employing said metadata to generate index information includes the steps of: detecting time code from said video digital contents; and comparing time code detected in said digital contents accompanying said metadata, and generating index information that is appropriate for said time code.