Title: Digital watermark with variable position
Application Number: 03132659 Application Date: 2003.09.30
Publication Number: 1519792 Publication Date: 2004.08.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09C1/00
Applicant(s) Name: Hewlett-Packard Development Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: wu limeng wang yong
Abstract:
     A digital watermark in a data file occurs at multiple locations within the file. The location of each digital watermark, other than a first digital watermark, is specified by a previous digital watermark, or by other auxiliary information in a same logical block as a previous digital watermark.
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