| 摘要 |
PURPOSE:To prevent the access from viewers outside reception time and to discriminate plural questions by broadcasting time limit information multiplexingly from a broadcasting station and inhibiting the transmission to a reply destination outside a response possible period on a reception side. CONSTITUTION:A two-way program urging the response of a receiver is broadcasted from the side of a broadcasting station and the information on the response from a reception side is transmitted to a prescribed response reply destination through a telephone line. At the time of the two-way program from the broadcasting station, the time limit information permitting the response from the reception side is multiplexed on a main broadcasting signal and a broadcasting is performed. On the reception side, separation and reproduction means 31 and 32 separating and reproducing the time limit information multiplexed to the received broadcasting signal and a means 20 fetching the output as the time limit information are provided. Within the only period stipulated by the fetched time limit information, a transmission means 33 is operated and the information on a response is transmitted to a broadcasting side. |
