APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

摘要

Disclosed are an apparatus for transmitting broadcast signals, an apparatus for receiving broadcast signals and methods for transmitting and receiving broadcast signals. The apparatus for transmitting broadcast signals includes a video encoding unit generating a video elementary stream by encoding a video signal, a caption data generation unit generating caption data and caption service information based on a caption signal corresponding to the video signal, a packet generation unit packetizing the video elementary stream, the caption data, and the caption service information such that the caption data is packetized through an independent stream from the video elementary stream, and a transmission unit transmitting the packetized video elementary stream and caption data through a broadcast signal.