发明名称 |
THROUGH-THE-EARTH RADIO |
摘要 |
<p>A through-the-earth communication system that includes a digital signal input device; a transmitter operating at a predetermined frequency sufficiently low to effectively penetrate useful distances through-the earth; a data compression circuit that is connected to an encoding processor; an amplifier that receives encoded output from the encoding processor for amplifying the output and transmitting the data to an antenna; and a receiver with an antenna, a band pass filter, a decoding processor, and a data decompressor.</p> |
申请公布号 |
EP1636972(A2) |
申请公布日期 |
2006.03.22 |
申请号 |
EP20040776406 |
申请日期 |
2004.06.08 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
REAGOR, DAVID, W.;VAZQUEZ-DOMINGUEZ, JOSE |
分类号 |
H04B13/02;(IPC1-7):H04M1/00 |
主分类号 |
H04B13/02 |
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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