| 摘要 |
PROBLEM TO BE SOLVED: To prevent overflow or underflow at a reception buffer in digital data communication using a streaming reproducing method. SOLUTION: The reproducing speed is changed according to changes in data accumulation amount in a reception buffer 22. To put it concretely, a reproducing speed determination unit 28 monitors changes in data accumulation amount in a reception buffer 22 and a reproducing speed control unit 210 conducts reproduction by the reproducing speed according to changes in data accumulation amount. The reproducing speed increases to prevent overflow at the reception buffer 220, if data is received in a period shorter than a predicted (presumed) time interval. On the other hand, the reproducing speed decreases to prevent underflow at the reception buffer 220, if data reception is delayed.
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