| 摘要 |
PURPOSE:To remove the waveform distortions of an analog signal after correction, by processing the levels just before or after the drop-out and discontinuous parts of the analog signal arithmetically and obtaining a correction signal. CONSTITUTION:An input signal (a) is supplied to a delay circuit 2 and a holding circuit 3 for previous value, and the output (d) of the circuit 2 is supplied to a holding circuit 4 for previous value. The circuits 3, 4 consist of sample holding circuits which hold the input signals when gates are of a high level and output the input signals straightly therefrom when the gates are of a low level. The outputs of the circuits 3, 4 are supplied to a subtractor 6. The differential signal is supplied to one side of a multiplier 7 and the output of a time-voltage converter 8 which generates triangular wave signals is supplied to the other. A holding command signal (b) is supplied to the time-voltage converter. The output of the multiplier is supplied through an analog switch 9 to one side of an adder 10, and the output of the holder 4 is supplied to the other. The added output thereof is the analog signal which is corrected of waveforms. |
