| 摘要 |
PURPOSE:To enable to completely reject all the interference signals on theory, by providing a filter having reciprocal transfer function to differentiated function, to the signal path supplied to the control circuit. CONSTITUTION:A signal from an interference signal detecting circuit 15 is fed to a series circuit of delay circuits K1-Km, and the output of the delay circuits K1-Km is fed to an adition circuit 21 through the level adjusting circuits J1-Jm. Further, the gain of the circuits J1-Jm is arbitrarily determined to constitute the inverse filter 20 having the characteristics of reciprocal of transfer function in differentiated waveform. Further, the signal from the circuit 21 is fed to the gain controller 16. Thus, the interference signal rejector is provided and inverse filters are provided like this, allowing to completely reject all the interference signal on theory. |
