DIGITAL-WATERMARK EMBEDDING DEVICE, DIGITAL-WATERMARK EMBEDDING METHOD, AND DIGITAL-WATERMARK DETECTING DEVICE

摘要

A digital-watermark embedding device includes a content obtaining unit that obtains content; a watermark-information obtaining unit that obtains digital-watermark information; a generating unit that generates a synchronization flag on a basis of the digital-watermark information; and an embedding unit that embeds the digital-watermark information and the synchronization flag into the content.