| 摘要 |
PROBLEM TO BE SOLVED: To completely acquire multiplexed digital broadcast data at a high efficiency. SOLUTION: Receiving terminals 10 and a broadcasting station 25 are systemized. The terminal 10 comprises a receive side recorder unit 18 for recording selectively specified digital data among multiplexed digital data 3 transmitted from the broadcasting station 25, a receive side table 23 for recording positions in data strings corresponding to data units of specified digital data failed in demodulation of the specified digital data, and a communication unit 22 for transmitting the positions in data strings to the broadcasting station 25. This station 25 comprises a station side recorder unit 32 for recording original data corresponding to the multiplexed digital data, and a complementary data transmitter unit 33 for taking up specified digital data corresponding to the multiplexed digital data from the original data, inserting the data on a time series of broadcasting the multiplexed digital data, and transmitting the data to the receiving terminal 10, thereby improving the broadcast efficiency. Complemental data are multiplexed and broadcast to improve the broadcast efficiency. |
