Patent ID: 7664060
Filing Date: 2010-02-16
Classification: H04B,H04M

Abstract:
1. A communication apparatus connected to an information terminal through a power line, the communication apparatus being connected to a subscriber's line, the communication apparatus comprising: an output interface that outputs an analog signal, and a modulator that modulates the analog signal into a modulated analog signal in a first frequency band, and a network interface that converts the modulated analog signal to a further modulated analog signal including analog data and outputs the further modulated analog signal to the outside through the subscriber's line using the first frequency band, and a power line interface that converts the analog signal to a digital signal including packetized digital data and outputs the digital signal to the information terminal through the power line using a second frequency band, the second frequency band being higher than the first frequency band, wherein the first frequency band and the second frequency band do not overlap in frequency, and wherein the input interface, the network interface and the power line interface are integrated in the communication apparatus.