The response method for bidirectional broadcast program, the remote control transmitter for response operation, the transmitting device of information of response, the receiving device of bidirectional broadcast and receiving device null of information

摘要

PURPOSE: To allow a receiver of response information to accurately confirm a response operation point of time by a viewer by adding a difference time between point of time of response operation and point of time of transmission of the response information to the response information with respect to a 2-way broadcast program. ;CONSTITUTION: Suppose that the user uses a remote command transmitter to make response operation at a point of time t1 and the user operates a remote command transmission button to send response information to the transmitter at a point of time t2, an elapsed time Δta between the times t1 and t2 is added to the transmission information. Then the transmitter of the response information receives a remote command signal at the point of time t2 and sends the response information through a telephone line at the set transmission time. In this case, an elapsed time Δtb from the remote command signal reception point of time t2 to a transmission point of time t3 is calculated, a sum time Δt of the time Δta and the time Δtb is calculated and it is added to the sent response information. Thus, the reply destination recognizes the point of time t1 before the point of time t3 by the time Δt as a response operation point of time.;COPYRIGHT: (C)1995,JPO