Patent ID: 8495695
Filing Date: 2013-07-23
Classification: H03M,H04H,H04N

Abstract:
1. A method of transmitting a broadcast signal in a transmitter, the method comprising: pre-processing first service data including audio data or video data for a mobile service via a preprocessor, wherein pre-processing the first service data comprises: multiplexing, via a multiplexer, the first service data packets and second service data packets, the second service data packets including second service data including audio data or video data for a main service; performing, via a second encoder, systematic Reed-Solomon (RS) encoding on the second service data in the multiplexed data packets and non-systematic RS encoding on the first service data in the multiplexed data packets; and transmitting a broadcast signal including the RS encoded first service data and the RS encoded second service data via a transmission unit, wherein a collection of the formed data groups is transmitted during slots in the broadcast signal, wherein the slots are basic time periods for multiplexing of the first service data and the second service data, and wherein the signaling information includes an identifier of the collection of the formed data groups.