| 摘要 |
A moving image data distribution system for distributing reproduction content data that is hierarchically structured so that lower layer data is synthesized with upper layer data to form high quality data. The moving image data distribution system includes a transmitting apparatus and a receiving apparatus. The transmitting apparatus includes a transmission data storing unit that stores the reproduction content data, an upper layer first data length determining means for determining a data length of the upper layer first data based on a reproduction delay time from when the receiving apparatus receives only the upper layer data to when the receiving apparatus reproduces the reproduction contents, an upper layer first data transmitting means for reading upper layer first data determined based on the upper layer first data length from the storing unit, and transmitting the upper layer first data to the receiving apparatus, and an upper layer subsequent data transmitting means for reading upper layer subsequent data subsequent to the upper layer first data from the storing unit, and transmitting the upper layer subsequent data to the receiving apparatus. The receiving apparatus includes a lower layer data storing unit that stores the lower layer data, a hierarchical data synthesizing means for synthesizing the lower layer data with the upper layer first data or the upper layer subsequent data, and a reproducing means for reproducing high quality data synthesized by the hierarchical data synthesizing means.
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