| 摘要 |
<P>PROBLEM TO BE SOLVED: To transmit addition content information of large transmission capacity only to a specific area of open space without causing interference to a conventional receiver during a relay of current terrestrial digital broadcast. <P>SOLUTION: A memory unit for memorizing data of additional content, a receiver for receiving first broadcast wave and obtaining a reception signal, a detection unit for detecting a known specific pattern from the receive signal, a multiplex unit for multiplexing the additional content data on the reception signal if the specific pattern is detected, and a transmission unit which transmits the second broadcast wave for relay based on the reception signal on which the additional content data is multiplexed, are provided. <P>COPYRIGHT: (C)2009,JPO&INPIT |
