| 摘要 |
PURPOSE:To automatically adjust the polarity and amplitude, by adjusting the polarity and amplitude of the in-phase component in response to the 2nd control signal and those of the orthogonal component in response to the 1st control signal when the 2nd control signal is a prescribed level or below. CONSTITUTION:A differential circuit 13 delays a signal and takes a difference with the original signal. This difference signal is integrated at an integration circuit 14. This integrated output is sampled at sampling circuits 15 and 16. At the start of the control operation, one sampling circuit 15 only is operative so that an adjustment circuit 10 to the in-phase component only can be operative to keep the other sampling circuit 16 inoperative. When the output of the sampling circuit 15 goes to a prescribed level, the other sampling circuit 16 is kept operative. |
