PURPOSE: To achieve a pulse transmission system less in jitter, by using a 0 level discriminating reproducer for a simple reproducing relay device, in a pulse transmission system consisting of a full reproducing relay device using timing pulses and a simple reproducing relay device not using the timing pulses.
CONSTITUTION: A KRZ pulse code is relayed and transmitted with a plurality of reproducing relay devices. A part out of a plurality of reproducing relay devices is a full reproducing relay device having various functions such as timing reproduction, equalizing amplification, and discriminating reproduction by timing pulse, and others consist of a simple reproducing relay device. In the simple reproducing relay device, an input signal is synthesized through an equalizing amplifier EA and a DC component reproducing circuit DR, and the output is inputted to a discriminating reproduction circuit PR. The circuit PR reproduces pulse codes of NRZ type which have leading and trailing, when the input signal crosses zero level.
KIMURA HIDETOSHI
OOTAKE KOUHEI
CHIBA NOBUYUKI
