Patent ID: 7539251

Claim:
A communications system comprising: a transmitting device for transmitting a modulated signal therefrom based upon first input data and second input data comprising a bit stream, the transmitting device comprising: a baseband injected pilot carrier (BPIC) generator for selectively generating BPIC data corresponding to the first input data, an interleaver for interleaving the BPIC data within the second input data bit stream, and a modulator for modulating the interleaved BPIC data based upon a first modulation type and modulating the interleaved second input data based upon a second modulation type to provide a modulated signal; and a receiving device for receiving the modulated signal from said transmitting device and comprising: a BPIC detector, and a demodulator cooperating with said BPIC detector for demodulating the modulated signal from said transmitting device based upon the interleaved BPIC data to generate the first and second input data.