Pulse converting and shaping communication device

摘要

A communication device includes: a converting part converting a data signal from a non-return-to-zero signal to a return-to-zero signal; a trigger flip-flop inverting an output signal every time the return-to-zero signal changes in one cycle; a first filter outputting a positive pulse and a negative pulse alternately, which indicate existence and absence of the pulse corresponding to a value of the data signal, by removing a low frequency component of an output signal of the trigger flip-flop.

主权项

1. A communication device comprising:
a converting part that converts a data signal from a non-return-to-zero signal into a return-to-zero signal; a trigger flip-flop that inverts an output signal every time the return-to-zero signal changes in one cycle; a first filter that outputs a positive pulse and a negative pulse alternately, which indicate existence and absence of the pulse corresponding to a value of the data signal; and an edge shaping circuit that steepens an edge of the output signal of the trigger flip-flop circuit and outputs to the first filter, wherein the first filter removes a low frequency component of the output signal of the edge shaping circuit.