| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a time required for retrieval/storage of a receptible physical channel at initial setting by using physical channel distribution information so as to retrieve a physical channel of a high frequency of use with high priority. SOLUTION: A frequency conversion means 101 of a receiver converts a frequency of a physical channel of a digital modulation signal, selects the physical channel, a demodulation means 102 demodulates the digital modulation signal, and a reception state discrimination means 103 discriminates the reception state of the physical channel. A data extract means 107 extracts other physical channel information from a data stream and a retrieval control means 108 controls a received frequency by the frequency conversion means 101. A physical channel distribution information storage means 109 stores physical channel distribution information and a retrieval information storage means 110 stores retrieved and reception channel information. A display means 111 displays a video image decoded by a video decoder 106 and retrieved state and information externally.</p> |
