| 摘要 |
A control circuit for controlling selected functions in a signal receiver, such as a television receiver, in response either to remotely generated control signals of the different selected frequencies or to manual controls which are provided on the signal receiver. The control circuit comprises an integrated circuit having a first input for receiving the remotely generated control signals. A frequency discriminator is included in the integrated circuit to detect the frequency of a signal applied thereto and to produce corresponding function control signals.
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