| 摘要 |
PURPOSE:To improve the information transmission speed by applying once equalizing processing to all quantized transmission characteristics in variance to reduce the adaptive equalizing processing time. CONSTITUTION:An input digital base band signal from an input terminal 11 at the transmission side is converted into a transmission line code from which a code error and block synchronization are detected by a transmission line code converting circuit 21. The converted base band signal is converted (12) into a carrier modulation signal and transmitted to a time constant change transmission line 13. The signal is converted into a base band signal subjected to waveform distortion by a demodulation circuit 14 at the reception side, fed to quantized transmission parameter equalizing circuits 11-1N in parallel, subjected respectively to equalizing processing and the waveform distortion is compensated.
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