| 发明名称 |
METHOD AND APPARATUS FOR ECHO DATA HIDING IN AUDIO SIGNALS |
| 摘要 |
<p>A method of hiding information in a host audio signal introduces one or more echoes into the signal. The separation in time between the host signal and an echo is associated with the value of a datum embedded in the signal. The identity of the embedded datum is determined by observing the delay between the host signal and the echo.</p> |
| 申请公布号 |
WO9806195(A1) |
申请公布日期 |
1998.02.12 |
| 申请号 |
WO1997US10529 |
申请日期 |
1997.05.29 |
| 申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
BENDER, WALTER;GRUHL, DANIEL;MORIMOTO, NORISHIGE |
| 分类号 |
G10L11/00;G09C5/00;G10L19/00;H04B1/66;H04H20/00;H04K1/00;(IPC1-7):H04K1/00 |
主分类号 |
G10L11/00 |
| 代理机构 |
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代理人 |
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| 地址 |
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