发明名称 |
Sequential tone acoustic command link |
摘要 |
An acoustic multi-tone code signal is transmitted through a water environment to a receiver unit which includes a multi-tone code decoder. If the signal-to-noise ratio of the input signal is above a certain threshold, only then will the coded signal be passed on to the decoder which will provide an output control signal in accordance with the particular code.
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申请公布号 |
US4110725(A) |
申请公布日期 |
1978.08.29 |
申请号 |
US19770787633 |
申请日期 |
1977.04.14 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
PETROSKY, KENNETH J. |
分类号 |
H04B11/00;H04L27/30;(IPC1-7):H04B11/00;H04Q9/02 |
主分类号 |
H04B11/00 |
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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