| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize an MPEG video decoder simple in configuration and capable of avoiding overflow of a bit buffer without degrading picture quality at the time of a high speed reproduction. SOLUTION: A picture skip circuit 6 is connected to the side of a node 6a at the time of a normal reproduction and transfers each picture read from a bit buffer 2 as is to a decode core circuit 4. In the picture skip circuit 6, the connection to the side of each node 6a and 6b is switched in accordance with the controls of a picture header detection circuit 3 and a decision circuit 5, each picture read from the bit buffer 2 is thinned by a picture unit and the picture is transferred to the decode core circuit 4. Namely, when the picture skip circuit 6 is connected to the side of the node 6b, the picture read from the bit buffer 2 is skipped without being transferred to the decode core circuit 4.</p> |
