Through-the-earth radio
AssigneeLos Alamos National Security, LLC
InventorsDavid Reagor, Jose Vasquez-Dominguez
Life of this patent
Estimating the term…
Abstract
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.
Claims15
1-9. (canceled)
A through-the-earth communication system comprising:
- a digital signal input device;
- a transmitter operating at a predetermined frequency sufficiently low to effectively penetrate useful distances through-the earth, receiving said digital signal input and providing said digital input signal to a data compression circuit that is connected to an encoding processor;
- an amplifier receiving encoded output from said encoding processor for amplifying said encoded output and outputting said encoded output to an antenna;
- and
- a receiver having an antenna receiving said encoded output followed by a band pass filter being connected to a decoding processor whose output is connected to a data decompressor, said data decompressor providing a decompressed digital signal.
A method of conducting through-the-earth communication comprising the steps of:
- inputting an analog signal;
- digitizing said analog signal;
- compressing said digitized signal;
- encoding said compressed digitized signal to encode a predetermined data stream into said compressed digitized signal;
- and
- outputting said encoded compressed digitized signal through an antenna at a predetermined frequency that is sufficiently low to effectively penetrate useful distances through-the-earth as a transmitted signal;
- receiving said transmitted signal with an antenna after said transmitted signal has propagated through-the-earth;
- converting said transmitted signal from an analog signal to a digital signal;
- decoding said digital signal;
- decompressing said digital signal;
- and
- outputting said decoded decompressed digital signal.
Dependencies are inferred from the claim text.