Patent ID: 7242732

Claim:
A new version device receiver capable of receiving both new version signals and old version signals, the new version device receiver comprising: a carrier demodulator that receives a carrier modulated signal and demodulates the carrier modulated signal to produce a carrier demodulated signal; a receive filter coupled to receive and filter the carrier demodulated signal, wherein the receive filter has a new version device frequency band that extends across at least a portion of an old version device frequency band; a first symbol rate receive path coupled to the receive filter that receives portions of the carrier demodulated signal having a plurality of spectral copies of a baseband modulated signal having a first symbol rate, wherein the first symbol rate receive path comprises: a first symbol rate decision feedback equalizer that equalizes and optimally combines the plurality of spectral copies of the baseband modulated signal having the first symbol rate; and a symbol to bit demapper coupled to the first symbol rate decision feedback equalizer that extracts information from the optimally combined plurality of spectral copies of the baseband modulated signal; and a second symbol rate receive path coupled to the receive filter that receives portions of the carrier demodulated signal having at least one spectral copy of a baseband modulated signal having a second symbol rate, wherein the second symbol rate is greater than the first symbol rate.