Patent ID: 9374260
Filing Date: 2016-06-21
CPC Classification: H04B,H04L

Claim Text:
1. A method of generating a gapped carrierless amplitude-phase modulated (CAP) signal, comprising: encoding a set of binary data into multi-level formatted data comprising an in-phase sequence and quadrature sequence; introducing a gap between a direct component and the in-phase sequence of the multi-level data format using a gapped in-phase pulse shaping filter to generate a gapped in-phase pulse signal; introducing a gap between a direct component and the quadrature sequence of the multi-level data format using a gapped quadrature pulse shaping filter to generate a gapped quadrature pulse signal; and generating a gapped CAP signal based on the difference between the gapped in-phase pulse signal and the gapped quadrature pulse signal.