| 摘要 |
PURPOSE:To grasp suitably the divergence state of an automatic equalizer, by discriminating the quality of signals from the respective absolute outputs of tap coefficient absolute value extracting circuits. CONSTITUTION:A data receiving circuit section is provided with tap coefficient absolute value extracting circuits 19-0-19-n, each tap coefficient is led to absolute value extracting circuits 19-0-19-n and the respective absolute value is applied to an adder 20. The output of the adder 20 is compared with a threshold value TH at a comparator 21 to check whether or not the state is in divergence. A divergence state detecting section 14 picks up surely the state of divergence so as not to be affected with noise. |
