发明名称 |
METHOD FOR AN ENCRYPTED DIGITAL WATERMARK |
摘要 |
A method for the human-assisted generation and application of pseudo-random keys for the purpose of encoding and decoding digital watermarks to and from a digitized data stream. A pseudo-random key and key application "envelope" are generated and stored using guideline parameters input by a human engineer interacting with a graphical representation of the digitized data stream. Key "envelope" information is permanently associated with the pseudo-random binary string comprising the key. Key and "envelope" information are then applied in a digital watermark system to the encoding and decoding of digital watermarks. |
申请公布号 |
WO9726733(A1) |
申请公布日期 |
1997.07.24 |
申请号 |
WO1997US00652 |
申请日期 |
1997.01.17 |
申请人 |
THE DICE COMPANY |
发明人 |
COOPERMAN, MARC;MOSKOWITZ, SCOTT, A. |
分类号 |
G06T1/00;H04L9/32;(IPC1-7):H04L9/00 |
主分类号 |
G06T1/00 |
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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