| 摘要 |
PURPOSE:To obtain the code error detection circuit high in the reliability, without lowering the code error detection ability and reducing the amount compulsively deteriorating the code error. CONSTITUTION:The input signal is picked up as the binary main signal output via the discriminator 3 and fed to the adder 2 and subtractor 7 together with the interference signal consisting of DC signal and binary signal. The output of the adder 2 and the subtractor 7 is fed to the exclusive OR circuit 5 via the discriminators 4, 8 and outputted as the code error signal. In this case, the level difference between the outputs of the adder 2 and the subtractor 7 is doubled than conventional case. Thus, the interference wave level can be halved than conventional ones to realize the code error detection circuit with high reliability. |
