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.
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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 |
代理机构 |
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代理人 |
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地址 |
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