| 摘要 |
A system distributes, to a communication terminal, first frame data reproduced singly by the terminal or second frame data as a difference with the previous frame data distributed to the terminal. The system includes a generating unit configured to generate the first or the second frame data from certain frame data; and a transmitting unit configured to transmit third frame data with the contents not updated or non-update information indicating that the contents are not updated, in place of the first or the second frame data, to the terminal when contents of the certain frame data are not updated over a certain range as compared with contents of the frame data previously generated. The transmitting unit is configured to transmit fourth frame data higher in image quality than the first frame data to the terminal before the third frame data or the non-update information is transmitted to the terminal. |
