| 摘要 |
<p>The invention provides a transmitter and a receiver to transmit and receive attribute data on a program while maintaining security. A transceiver system includes a transmitter (100) for transmitting program content (21) and attribute data (22) on a program, and a receiver (200) for receiving program content (21) and storing all or part of the program content (21). In addition to the program content (21) and the attribute data (22), the transmitter (100) transmits metadata (24) describing the attribute data (22).</p> |
