发明名称 |
Method and Apparatus for Watermarking Stream Data |
摘要 |
A watermarking system embeds a watermark into data values that may be streamed. A data hash is calculated using data values and a hash key. The data values are grouped. The groups include a first group and a second group. A first group hash is calculated using data values in the first group and a first group hash key. A second group hash is calculated using data values in the second group and a second group hash key. A watermark is constructed based on the first group hash and the second group hash. The value of at least one of the data values in the first group is modified using the watermark.
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申请公布号 |
US2006277410(A1) |
申请公布日期 |
2006.12.07 |
申请号 |
US20060419800 |
申请日期 |
2006.05.23 |
申请人 |
JAJODIA SUSHIL;GUO HUIPING;LI YINGJIU |
发明人 |
JAJODIA SUSHIL;GUO HUIPING;LI YINGJIU |
分类号 |
H04L9/00 |
主分类号 |
H04L9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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