| 摘要 |
<p>It is an object of the present invention to provide an efficient system for communicating with a broadcast audience. To achieve this and other objects of the present invention, there is a method for a system having a transmitter (811) that broadcasts a first signal (450). The method comprises receiving the first signal (450); decoding (810) the first signal into the second signal (659), the second signal being human perceptible; decoding the first signal into the third signal (660), the third signal being digital; receiving an input from a user (712), after the decoding steps (802); generating the fourth signal (806), responsive to the input (712); generating a fifth signal (750) by appending the fourth signal (806) to the third signal (660); and sending the fifth signal (750).</p> |
