发明名称 SYSTEM AND METHOD FOR SOLVING THE BIRTHDAY PROBLEM WITH WATERMARKING
摘要 A system and method are provided for facilitating the playing of a watermarked video having the "birthday problem". Consumers send the problem disc to an authorization center where the disc is analyzed to determine if it is a legitimate disc. The authorization center generates a digital certificate uniquely associated with the disc and with the video and embeds the digital certificate into the disc. The digital certificate will cause a video player to play the video without checking for the watermark.
申请公布号 US2009034783(A1) 申请公布日期 2009.02.05
申请号 US20070833981 申请日期 2007.08.04
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BELLWOOD THOMAS A.;GASIEWSKI JAMES M.;LEAKE, JR. DONALD E.;LOTSPIECH JEFFREY B.
分类号 G06K9/00 主分类号 G06K9/00
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