| 摘要 |
<p>PURPOSE:To eliminate the influence of steady and momentary level fluctuations upon a timing signal and to simplify the circuit constitution, by converting the output of a linear amplifier to a square wave. CONSTITUTION:The receiving wave signal of a wave to be modulated given to an input terminal 1 is amplified by a linear amplifying circuit 2 and is converted to a square wave signal by a square wave converting circuit 3. This square wave signal is given to a timing tuning circuit 6 consisting of a nonlinear circuit 4 and a resonance circuit 5, and a reproducing timing signal is extracted there and is outputted from an output terminal 7. Since the receiving wave signal is converted to the square wave signal by adding the square wave converting circuit 3, the square wave signal is not fluctuated even if the level of the receiving wave signal is fluctuated, and consequently, the reproducing timing signal is not fluctuated.</p> |
