| 摘要 |
<p>When going to a destination by an electric train and so forth, a user 102 of a mobile type telephone set 101 stores data distribution plan information in a distribution center 105 via a base station 111. In the distribution center 105, based on a mobile plan to the destination, an error data for arrival time at the destination is calculated, and is stored in a data distribution plan information storage section 116. The data distribution plan information storage section 116 subtracts an error time period, after which arrival will be earlier, and generates data distribution plan information. A data transmitting section 113 sets a difference between the current time and distribution scheduled time in a timer circuit 119, and when time has come, transmits a distribution data stored in a distribution data storage section 118 to the mobile type telephone set 101. Even in case that the destination is changed in accordance with the movement of the user 102, since a data necessary at destinations is distributed near the respective destinations, efficient utilization of a memory can be realized. <IMAGE></p> |
