| 摘要 |
<p>PROBLEM TO BE SOLVED: To allow a newly selected program to be quickly displayed on a display screen by selecting a connection state between a reception means and any of buffer circuits and a connection state between a decoding means and any of the buffer circuits. SOLUTION: A tuner 2 provides an output of an MPEG bit stream of a selected channel, a PID decoder 3 decodes a PID and the decoded stream is fed to a control circuit 11. Plural output terminals of an input selection circuit 4 connect respectively to a single decode buffer 5 and plural intra buffers 6-8 and output terminals of the buffers 5-8 connect to plural input terminals of an output selection circuit 9 respectively. Then a decode output obtained from an MPEG decoder 10 connecting to an output terminal of the output selection circuit 9 is fed to a TV receiver, on which an image is displayed. In this case, the selection of any buffer by the input selection circuit 4 and the output selection circuit 9 is controlled respectively by switching signals S1, S2 fed from the selection operation control circuit 11 depending on a program.</p> |
