| 摘要 |
An apparatus and a method for transmitting/receiving a digital broadcast are provided to allow a viewer in a good channel environment to watch a quality digital broadcast by receiving both a main stream and a sub-stream. A layer type encoding unit(110) hierarchically encodes data to output a main stream and a sub-stream. A main stream coding unit(120) generates a parity with respect to the main stream. A stream adding unit(130) adds the parity-generated main stream to the sub-stream. A transmitting unit(160) transmits the main stream-added sub-stream. The stream adding unit adds the coded main stream to an adaptation field of the sub-stream. The stream adding unit adds the coded main stream to a private data region of the sub-stream. An FEC(Forward Error Correction) coding unit(140) performs FEC coding on the main stream-added sub-stream. A modulation unit(150) modulates the coded stream. |
