| 摘要 |
A method for controlling transmission of messages in an interactive televisi on system comprising a network and a plurality of receiver units connected to t he network; the method comprising: transmitting to the receiver units an trigge r inviting a response from each receiver unit and indicating that a delay procedure is to be applied to the responses; and at each receiver unit: accepting from a user of the receiver unit data in response to the trigger; forming a response message for transmission to the network in response to the trigger, the response message including the data received from the user; determining the length of a delay interval to be applied to the response message; and transmitting the response message to the network after the delay.
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