| 摘要 |
The present invention is associated with a transmitting apparatus adapted to effectively use the band for transferring programs of television broadcasting for example. A program of channel A transmitted from the transmitting side can be viewed in real time on the receiving side. A program of channel B is transmitted to the receiving side in advance in a time zone of lower audience rate than other time zones and stored in a storage device of the receiving side. Each program to be stored is encrypted. Program X is provided to viewers from 19:00 and, when a provision time comes, the data such as a key are transmitted from the transmitting side to the receiving side along with the program data of channel A. The receiving side extracts the data such as a key and, by use of the extracted data, provides the program stored in the storage device to viewers. The present invention is applicable to apparatuses which transmit or receive programs of television broadcasting for example. <IMAGE> |
