Patent ID: 7865139
Filing Date: 2011-01-04
Classification: H04B,Y10S

Abstract:
1. A method of transmitting a data signal for use in a magneto-inductive system, wherein the magneto-inductive system includes a first magneto-inductive unit and second magneto-inductive unit, the first magneto-inductive unit including a transmit module for modulating said data signal at a carrier frequency to generate a modulated data signal, the method comprising the steps of: inputting the modulated data signal from the magneto-inductive transmitter to a voice-band communication system as an analog input; transmitting the modulated data signal over a voice-band communication channel to a remote unit; receiving the modulated data signal in the remote unit; and outputting the modulated data signal from the remote unit to the magneto-inductive receiver, wherein the voice-band communication system has a bandwidth for audio signals in a predetermined frequency range and wherein the carrier frequency is a frequency within said predetermined frequency range.