| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system by which contents of communication can easily be grasped even in the case of viewing on the way of communication. SOLUTION: In the communication system (broadcast system) of this invention, a broadcast unit accumulates sets of scene relating information A-C denoting contents of a broadcast scene and of a scene on-air at present every time scenes SA-SC being main information change to set the result as attached information. Then the attached information is multiplexed on the main information and the multiplexed information is broadcast. Since a user can acquire information with respect to scenes that are broadcast entirely, even when the user views a program on the way, the user can surely grasp contents of the program.
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