| 摘要 |
<p>Disclosed are a transmission device, a transmission method, a reception device, a reception method, a program, and a broadcast system capable of temporally distributing accesses to a server from reception devices, the number of which may be large. In the first operation scenario, the total number of reception devices is assumed to hardly change. In order to rapidly converge accesses to a server (46), the effective probability parameter N=P1 of trigger validity of trigger information transmitted in the first round is set to P1=Ne/At (an integer value obtained by rounding up). The effective probability parameter N=Pk of trigger validity of trigger information transmitted in the k-th round (k is an integer of 2 or more) is set to Pk=(Ne-(k-1)At)/At=P1-(k-1). When Pk becomes 1 or less and thereafter, the parameter is set to 1. The invention can be applied when reception devices are controlled using television program broadcast signals.</p> |
