发明名称 |
Steganographic method for covert audio communications |
摘要 |
Method for embedding a covert message within a digital audio signal. The existence of the covert message is undetectable and the information content of the covert message can be further rendered unascertainable. Covert message data is embedded within a digital audio signal on an audio frame-by-audio frame basis. Covert message data is embedded either at a rate of one bit per frame or two bits per frame. The invention has uses including but not limited to watermarking digital audio signals, hiding data within a digital audio signal, increasing the channel capacity of a communications channel by placing multiple messages within each other, and generally increasing message robustness.
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申请公布号 |
US2005159831(A1) |
申请公布日期 |
2005.07.21 |
申请号 |
US20040768753 |
申请日期 |
2004.01.21 |
申请人 |
GOPALAN KALIAPPAN;WENNDT STANLEY J.;HADDAD DARREN |
发明人 |
GOPALAN KALIAPPAN;WENNDT STANLEY J.;HADDAD DARREN |
分类号 |
G06F17/00;G06K9/00;G10L19/00;(IPC1-7):G06F17/00 |
主分类号 |
G06F17/00 |
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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