Patent ID: 9001925
Filing Date: 2015-04-07
Classification: H04B

Abstract:
1. A method for generating a return-to-zero control signal for controlling a modulator, the method comprising: receiving an input data stream; generating a first data stream from the input data stream, the first data stream including a pulse for each logical one that appears in the input data stream; generating a second data stream from the input data stream, the second data stream including a pulse for each logical zero that appears in the input data stream; combining the first data stream and the second data stream to generate a third data stream, the third data stream having a first value for representing logical ones that appear in the input data stream, a second value for representing a zero value; and a third value for representing logical zeros that appear in the input data stream; and outputting the third data stream as a return-to-zero control signal for controlling a modulator.