| 摘要 |
Files of data broadcast using HTML-5 are to be transmitted by use of MMT system. For each of a plurality of data broadcast presentation units, the information of a broadcast transmission file list, central files and a pre-cache target file list, which constitute a presentation unit, is described in a data content management table. When a broadcast file list, which constitutes a data broadcast presentation unit to refer to next from the current data broadcast presentation unit, is designated as a pre-cache target, file data, which are necessary for the data broadcast presentation unit to which a transition is to be effected next, can be pre-cached on a receiver side, whereby a timely data broadcast service cooperative to a broadcast program can be achieved. |
