| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enable a receiving side to form a high quality information signal for broadcasting and to obtain reproduction information based on restoration information data in which time delay to original information data is small in applying data compression processing to information data and transmitting the information data. <P>SOLUTION: There are provided a long time data compression processing part 13 for applying data compression to information data for each data section over a prescribed period of time, a data reducing part 14 for applying data reduction processing to the information data to obtain reduced information data, a short time data compression processing part 15 for applying data compression to the information data for each data section over a short period of time, and a data transmitting part 51 for transmitting long time compressed information data from the long time data compression processing part 13 and short time compressed information data from the short time data compression processing part 15. <P>COPYRIGHT: (C)2004,JPO</p> |
