| 摘要 |
<p>A storage-type data receiver (Arp1) receives data (Dd) distributed from specific data sources (1, 3, 5) and irregularly updated, and update schedule information (Inu) indicating the time of next update (T(Inu)), and then stores the data (Dd). The data receiver comprises receivers (1, 3, 5) for receiving the distributed data (Dd) and the update schedule information (lnu); a storage (13) for storing the received data (Dd); an update information storage (9) for storing the received update schedule information (Inu); a clock (15) for indicating current time (T(Ict)); a data update detector (11) for comparing the time of next update (T(Inu)) with current time (T(Ict)) to generate data update signal (Sj) indicating whether it is the time for the data (Dd) to be updated; and a controller (17) for controlling storage of data (Dd) received by the storage (13) based on the data update signal (Sj).</p> |
