Patent ID: 7412169

Claim:
A fiber to the home (FTTH) system for convergence of digital broadcast and communication signals through a switched broadcast, comprising: an optical line terminal (OLT) for receiving a first predetermined number of broadcast signals and an Ethernet signal, convening the received broadcast signals and Ethernet signal into a plurality of converted optical signals, combining the converted optical signals into converged optical signals, and transmitting the converged optical signals by an optical wavelength division multiplexing method; an optical network unit (ONU) for receiving and classifying the converged optical signals transmitted from the OLT back into the first predetermined number of broadcast signals and the Ethernet signal, converting the classified signals into electrical signals, and said ONU switching a second predetermined number of broadcast signals from the first predetermined number of broadcast signals according to each subscriber interface unit (SIU) by a channel selection information contained in upstream Ethernet information, switching the Ethernet signal to be transmitted according to each SIU and transmitting the switched second predetermined number of the switched broadcast signals and the switched Ethernet signals in optical; and an SIU for converting the second predetermined number of broadcast signals transmitted from the ONU into electrical signals, transmitting the second predetermined number of broadcast signals and the Ethernet signal to be transmitted to a subscriber to a corresponding subscriber' terminal, and transmitting the upstream Ethernet information including the upstream Ethernet information for the broadcasting signal to the ONU; wherein only the second predetermined number of broadcast signals selected through switching using the channel selection information is transmitted to the SIU from the ONU.