Patent ID: 8302131

Claim:
A method of processing a Non-Real Time (NRT) service in a broadcast receiver, the method comprising: receiving a first signaling information table including first information of the NRT service and a second signaling information table including second information of the NRT service in a receiving unit; detecting a duplicate of the first information included in the first signaling information table and a duplicate of the second information included in the second signaling information table in a service manager; acquiring the first information after processing the first signaling information table if the first information included in the first signaling information table is not a duplicate and acquiring the second information after processing the second signaling information table if the second information included in the second signaling information table is not a duplicate in the service manager; and receiving and processing NRT service data based on at least the acquired first or second information in a processor, wherein the first information includes an Internet Protocol (IP) address and a User Datagram Protocol (UDP) port number of IP datagrams that form the NRT service, wherein the second information includes information describing at least one content item in the NRT service, and wherein IP datagrams including the first signaling information table and the second signaling information table have a well-known IP address and a well-known UDP port number.