| 摘要 |
PURPOSE:To enable to reproduce the desired signal even if the level of wave distortion signal is in variance, by changing the slice level based on the specific signal in transmission signal. CONSTITUTION:The distorted wave signal fed to an input terminal P1 is fed to a slice circuit 1, synchronous detection circuit 2, and subcarrier separation circuit 3. Since a gate signal generating circuit 5 picks up the specific signal part and gates an up-down counter 6, when the slice level of the slice circuit 1 is decreased, the counter 6 keeps many up-operation period, and the slice level being the output of a D/A conversion circuit 9 can be kept to a suitable value. |
