Patent ID: 7512220
Filing Date: 2009-03-31
Classification: H04B,H04M

Abstract:
1. An xDSL modem apparatus comprising: a port for transmitting and receiving carrier waves via a transmission medium, a low-pass filtering means for isolating a low-frequency component of a received composite carrier wave below a first frequency and transmitting the isolated low frequency component of the composite carrier wave, a high-pass filtering means for isolating a high-frequency component of the composite carrier wave above a second frequency, a band-pass filtering means for isolating a power component of the composite carrier wave, the power component having a resonant frequency of the transmission medium and being in a frequency range between the first and second frequencies, an xDSL modem for demodulating the high-frequency component of the composite carrier wave and recovering a computer readable bitstream therefrom and transmitting the computer readable bitstream, and for modulating a high-frequency carrier wave with a received computer readable bitstream and transmitting the modulated carrier wave, and a means for utilizing the power component of the composite carrier wave to provide operating power for the DSL modem.