| 摘要 |
PROBLEM TO BE SOLVED: To manage whether individual information can be correctly supplied from broadcasting supply side to audience side. SOLUTION: A broadcasting program, common information, and individual information are outputted as a transmission signal DSS from an transmitter 10 on the broadcasting supply side. Reception terminal 30 on the audience side stores prescribed information included in received individual information destined for equipment itself. This prescribed information stored in the reception terminal equipment 30 is supplied to transmission equipment 10 through, for example, a public telephone line. The transmitter 10 compares transmitted individual information with supplied prescribed information to manage whether individual information is correctly supplied to reception terminal 30 or not. Since it is sufficient if individual information is transmitted in the case of update of stored information or non-coincidence of information, it is unnecessary to transmit individual information to reception terminal 30 many times, and broadcasting programs or the like are efficiently transmitted. |
