Patent ID: 7489686

Claim:
An optical network unit for an access network for converging broadcast/telecommunication, the optical network unit including an optical line terminal for delivering a plurality of broadcast data and communication data transmitted thereto through external broadcast and communication vendors and a plurality of subscriber units for receiving the broadcast data and the communication data processed for each subscriber from the optical network unit, the optical network unit for processing the broadcast data and the communication data delivered from the optical line terminal according to each corresponding subscriber and delivering the broadcast data and the communication data to each corresponding subscriber, the optical network unit comprising: a synchronous optical network (SONET) demultiplexer for receiving the broadcast data from the optical line terminal to demultiplex the broadcast data according to each broadcast channel having respectively different bit rates; a broadcast switch part for switching each broadcast channel, demultiplexed by the synchronous optical network (SONET) demultiplexer, in consideration of the bit rate of each broadcast data, according to each subscriber unit to deliver the broadcast data to each subscriber unit; an Internet protocol (IP) control part for receiving the communication data from the optical line terminal; a main control part for controlling switching with respect to each channel of each subscriber unit in the broadcast switch part and delivering the communication data from the IP control part to each subscriber unit; a 1394 link layer controller/physical layer controller for converting the data of each broadcast channel delivered from the broadcast switch part and the communication data from the main control part into an IEEE 1394 format so as to deliver the data of the IEEE 1394 format; and an optical transmitting/receiving part for performing optical transmission together with the subscriber units.