发明名称 Digital content reproduction, data acquisition, metadata management, and digital watermark embedding
摘要 The present invention provides methods, apparatus and systems to embed pointer information for metadata in content using a method that will not delete the information, so that metadata correlated with content can be correctly obtained, even after the contents have been edited. In an example embodiment, a user terminal for reproducing multimedia content comprises: a pointer information detector, for detecting pointer information that is embedded in the content and that points to the location of metadata in which information concerning the content is written; a network interface, for employing the pointer information to obtain the metadata via a network; and an index information generator, for employing the metadata to generate index information that is correlated with the data structure of the digital content.
申请公布号 US7536027(B2) 申请公布日期 2009.05.19
申请号 US20070692094 申请日期 2007.03.27
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 NAGAO KATASHI
分类号 G06F17/30;G06K9/00;G06F13/00;H04L9/00;H04N5/76;H04N5/91;H04N7/173 主分类号 G06F17/30
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