| 摘要 |
Control apparatus for recording first wanted signals of an input signal having the first signals and second unwanted signals, each of the second signals being of a time duration up to a predetermined maximum and each of the first signals being of any time duration greater than the predetermined maximum, including a circuit, responsive to the input signal, for automatically distinguishing the first signals from the second signals as a function of time duration, and a circuit for producing recorder control signals to record each of the first signals and to prevent recording of the second signals.
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