| 摘要 |
PURPOSE:To increase the noise absorbing characteristics without increasing the delay time of the output response, by securing a coincidence between the delay time of response to the change of output caused by the change of input and the maximum time of duration of the noise contained in the input signal and to be absorbed. CONSTITUTION:An integrating operation is given based on a certain rule to the ditital coded input signal 30, and at the same time an arithmetic circuit is added to give the upper and lower extreme values to the result of operation as well as to secure a continunation of the above-mentioned arithmetic operation following the result of the preceding operation. Then the state of output is inverted at 42 according as the passing direction is toward the increment or decrement when the result of operation passes through the threshold level fixed previously. And in case the result passes through the threshold level in the direction of increment, the result of operation applied to the comparator 42 is set identical 38 to the upper extreme value and in case the result passes through the threshold level in direction of decrement, the result is set identical 44 to the lower extreme value, respectively. |
