Patent ID: 6522243
Filing Date: 2003-02-18
Classification: H04B,H04L

Abstract:
A GHM communication system for communicating via a power line, the GHM communication system comprising:a GHM transmitter connected to the power line for transmitting a GHM signal via the power line, the GHM transmitter comprising: a processing unit connected to the power line for synthesizing a plurality of carrier frequencies to form the GHM signal; and a transmission filter bank connected to the processing unit for pulse shaping the GHM signal before transmission wherein the pulse shaped GHM signal is confined to a frequency spectrum having a predetermined frequency range; a GHM receiver connected to the power line for receiving the transmitted GHM signal, the GHM receiver comprising: a serial to parallel converter connected to the power line for converting the transmitted GHM signal into a plurality of outputs; a receiver filter bank connected to the plurality of outputs of the serial to parallel converter for filtering the plurality of outputs into a frequency spectrum substantially similar to said predetermined frequency range and the receiver filter bank for providing the plurality of outputs to a receiver filter bank output; an FFT unit connected to a receiver filter bank output for transforming the transmitted GHM signal received from the receiver filter bank output.