| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transmission control signal receiver for receiving a transmission control signal with use of a simple circuit structure, and to provide a terrestrial digital television broadcast receiver using the transmission control signal receiver. <P>SOLUTION: The transmission control signal receiver receives a transmission control signal carrier of terrestrial digital television broadcast and demodulates the transmission control signal carrier into a transmission control signal. The transmission control signal receiver includes an orthogonal demodulation circuit 42 for performing an orthogonal demodulation on a received signal using a frequency signal that is set to a center frequency of a plurality of transmission control signal carriers, a transmission control signal carrier receiving circuit 44 for simultaneously receiving the plurality of transmission control signal carriers from an output of the orthogonal demodulation circuit 42, and a detector circuit 46 for executing detection through diversity synthesis of the plurality of transmission control signal carriers received in the transmission control signal carrier receiving circuit 44. The transmission control signal includes a start-up flag for emergent alert broadcast. <P>COPYRIGHT: (C)2010,JPO&INPIT |
